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Consider an example of calculating the power of the boiler, the cost of heating.
Target:
- - diesel boiler;
- - electric boiler;
- - gas boiler.
- - solid fuel boiler (coal);
- - solid fuel boiler (pellet);
- - diesel boiler;
- - electric boiler;
- - gas boiler.
Initial data:
Option 1.
Option 2.
Option 3.
Option 4.
Solutions:
Object location: Moscow city.
Option 1
- A two-storey house with an area of 300 square meters, a ceiling height of 2.5 meters, a building height in the ridge - 6.5 meters.
- Dimensions (edit) building:
- Length: 15 m
- Width: 10 m
- 150 square meters.
- 862.5 cubic meters.
- Heating system- closed.
- Insulation degree- weak:
- wall material - concrete on crushed stone, layer thickness: 0.5 m;
- roofing material - resinous pine (15% moisture), layer thickness: 0.03 m;
- the floor is not insulated;
- glazing - double glazing in a split partition, area: 32.0 square meters;
- entrance openings - wooden external doors (two doors), area: 5 square meters.
- Ventilation average premises - 50%
- in the house: 20 ° С.
- Hot water supply not required.
- Heat loss through the walls: 27.29 kW;
- Heat loss through the roof: 30.54 kW;
- Heat losses through the entrance openings: 1.2 kW;
- Heat loss through the floor: 3.51 kW;
- Heat loss through the windows: 4.73 kW.
67.27 kW.
Ventilation calculation.
- Air exchange for 1 square meter: 0.12 m3 / h;
- Total air volume for ventilation: 431.25 m3 / h;
- Total heat loss by ventilation: 12 kW.
Total heat loss by the facility: 79.27 kW.
Required boiler power.
- Heat loss by the object: 79.27 kW;
- Boiler power reserve: 10%;
- 88 kWt.
- KOMPAKT MAX 100 kW(for burning coal);
- OPTIMA PLUS MAX 100 kW(for wood burning).
Boiler efficiency: 90%
Index | Month | Per season (+ DHW) | ||||||||
September | October | November | December | January | February | March | April | May | ||
Average temperature, ° C | 11,3 | 5,6 | -1,2 | -5,2 | -6,5 | -6,7 | -1,0 | 6,7 | 13,2 | |
Heat loss, kW | 10,61 | 17,56 | 25,86 | 30,73 | 32,32 | 32,56 | 25,61 | 16,22 | 8,29 | |
Gcal | 6,58 | 10,89 | 16,03 | 19,06 | 20,04 | 20,19 | 15,88 | 10,06 | 5,14 | 123,87 |
1306 | 2161 | 3181 | 3782 | 3977 | 4006 | 3151 | 1997 | 1020 | 24577 | |
1524 | 2521 | 3711 | 4413 | 4639 | 4674 | 3676 | 2329 | 1190 | 28674 | |
Pellet consumption, kg / month | 2925 | 4840 | 7125 | 8472 | 8907 | 8974 | 7058 | 4472 | 2285 | 55053 |
Wood consumption, m 3 / month | 3,31 | 5,48 | 8,06 | 9,58 | 10,08 | 10,15 | 7,98 | 5,06 | 2,58 | 62,28 |
871 | 1441 | 2121 | 2522 | 2651 | 2671 | 2101 | 1331 | 680 | 16385 | |
Gas consumption, m 3 / month | 962 | 1593 | 2344 | 2787 | 2930 | 2952 | 2322 | 1471 | 752 | 18110 |
Electric, kW * hour / month | 22918 | 37934 | 55847 | 66385 | 69809 | 70336 | 55320 | 35036 | 17913 | 431481 |
Heating cost:
147 464 rubles for the season.
At the price of coal - RUB 6,000 / t and boiler efficiency is 90%.
35 842 rubles for the season.
At the price of coal - 1250 rub / t and boiler efficiency is 90%.
330 320 rubles for the season.
At the price of pellets - RUB 6,000 / t and boiler efficiency is 90%.
84,075 rubles for the season.
At the price of wood - 1350 rub /cub.m and boiler efficiency is 90%.
540 702 rubles for the season.
33 rub / liter and boiler efficiency is 90%.
78 958 rubles for the season.
At the price of gas - 4.36 rubles / cubic meter and boiler efficiency is 90%.
Boiler efficiency: 80%
Index | Month | Per season (+ DHW) | ||||||||
September | October | November | December | January | February | March | April | May | ||
Average temperature, ° C | 11,3 | 5,6 | -1,2 | -5,2 | -6,5 | -6,7 | -1,0 | 6,7 | 13,2 | |
Heat loss, kW | 10,61 | 17,56 | 25,86 | 30,73 | 32,32 | 32,56 | 25,61 | 16,22 | 8,29 | |
Gcal | 6,58 | 10,89 | 16,03 | 19,06 | 20,04 | 20,19 | 15,88 | 10,06 | 5,14 | 123,87 |
Coal consumption (5600), kg / month | 1469 | 2431 | 3579 | 4255 | 4474 | 4507 | 3545 | 2246 | 1148 | 27650 |
Coal consumption (4800), kg / month | 1714 | 2836 | 4175 | 4964 | 5219 | 5258 | 4136 | 2620 | 1339 | 32258 |
Pellet consumption, kg / month | 3290 | 5445 | 8016 | 9530 | 10020 | 10095 | 7940 | 5030 | 2570 | 61935 |
Wood consumption, m 3 / month | 3,72 | 6,16 | 9,07 | 10,78 | 11,33 | 11,42 | 8,98 | 5,69 | 2,91 | 70,06 |
Consumption diesel fuel, liter / month | 980 | 1621 | 2386 | 2837 | 2983 | 3005 | 2364 | 1498 | 765 | 18433 |
Gas consumption, m 3 / month | 1083 | 1792 | 2637 | 3135 | 3297 | 3321 | 2612 | 1655 | 846 | 20373 |
Electric, kW * hour / month | 22918 | 37934 | 55847 | 66385 | 69809 | 70336 | 55320 | 35036 | 17913 | 431481 |
Heating cost:
Heating cost coal(5600 kcal / kg) will be 165 897 rubles for the season.
At the price of coal - RUB 6,000 / t and the boiler efficiency is 80%.
40 322 rubles for the season.
At the price of coal - 1250 rub / t and the boiler efficiency is 80%.
The cost of heating with pellets will be 371 610 rubles for the season.
At the price of pellets - RUB 6,000 / t and the boiler efficiency is 80%.
The cost of heating with wood will be 94 584 rubles for the season.
At the price of wood - 1350 rub /cub.m and the boiler efficiency is 80%.
The cost of heating with diesel fuel will be 608 290 rubles for the season.
At the price of diesel fuel - 33 rub / liter and the boiler efficiency is 80%.
The cost of heating with gas will be 88 828 rubles for the season.
At the price of gas - 4.36 rubles / cubic meter and the boiler efficiency is 80%.
Boiler efficiency: 70%
Index | Month | Per season (+ DHW) | ||||||||
September | October | November | December | January | February | March | April | May | ||
Average temperature, ° C | 11,3 | 5,6 | -1,2 | -5,2 | -6,5 | -6,7 | -1,0 | 6,7 | 13,2 | |
Heat loss, kW | 10,61 | 17,56 | 25,86 | 30,73 | 32,32 | 32,56 | 25,61 | 16,22 | 8,29 | |
Gcal | 6,58 | 10,89 | 16,03 | 19,06 | 20,04 | 20,19 | 15,88 | 10,06 | 5,14 | 123,87 |
Coal consumption (5600), kg / month | 1679 | 2779 | 4090 | 4863 | 5113 | 5151 | 4052 | 2567 | 1312 | 31599 |
Coal consumption (4800), kg / month | 1959 | 3242 | 4771 | 5673 | 5965 | 6009 | 4727 | 2995 | 1530 | 36866 |
Pellet consumption, kg / month | 3760 | 6223 | 9161 | 10892 | 11452 | 11538 | 9075 | 5749 | 2938 | 70783 |
Wood consumption, m 3 / month | 4,25 | 7,04 | 10,36 | 12,32 | 12,95 | 13,05 | 10,27 | 6,5 | 3,32 | 80,07 |
Diesel fuel consumption, liter / month | 1120 | 1853 | 2727 | 3242 | 3409 | 3434 | 2701 | 1711 | 875 | 21066 |
Electric, kW * hour / month | 22918 | 37934 | 55847 | 66385 | 69809 | 70336 | 55320 | 35036 | 17913 | 431481 |
Heating cost:
The cost of heating with coal (5600 kcal / kg) will be 189 597 rubles for the season.
At the price of coal - RUB 6,000 / t and the boiler efficiency is 70%.
The cost of heating with coal (4800 kcal / kg) will be 46 083 rubles for the season.
At the price of coal - 1250 rub / t and the boiler efficiency is 70%.
The cost of heating with pellets will be 424 697 rubles for the season.
At the price of pellets - RUB 6,000 / t and the boiler efficiency is 70%.
The cost of heating with wood will be 108 096 rubles for the season.
At the price of wood - 1350 rub /cub.m and the boiler efficiency is 70%.
The cost of heating with diesel fuel will be 695 189 rubles for the season.
At the price of diesel fuel - 4.36 rubles / liter and the boiler efficiency is 70%.
For a boiler with a capacity of 100 kW, a chimney with inner diameter 250 mm and height 11 m.
Option 2
- Three-storey house with an area of 300 square meters, ceiling height 2.8 meters, building height in the ridge - 10.5 meters.
- Dimensions (edit) building:
- Length: 10 m
- Width: 10 m
- 100 square meters.
- The volume of the building, taking into account the height in the ridge, is: 945 cubic meters.
- Heating system- closed.
- Insulation degree- average:
- wall material - wooden beams, layer thickness: 0.3 m;
- roofing material - Scots pine (15% moisture content), layer thickness: 0.02 m;
- roof covering - tiles (katepal), thickness: 0.002 m;
- the floor is not insulated;
- glazing - usual, area: 35 square meters;
- entrance openings - wooden external doors, area: 3 square meters.
- Ventilation average premises - 50%
- Desired comfort temperature in the house: 20 ° С.
- Hot water supply- indirect heating boiler - 400 liters (family of 6).
Central heating calculation.
- Heat loss through the walls: 11.36 kW;
- Heat loss through the roof: 4.53 kW;
- Heat losses through the entrance openings: 0.72 kW;
- Heat loss through the floor: 2.48 kW;
- Heat loss through the windows: 5.99 kW.
Total heat losses for heating: 25.08 kW.
Hot water supply calculation.
- Consumption hot water for one person is 70 liters per day. For a family of six, the hot water consumption will be 420 l / day.
- Heat consumption for water heating: 1.37 kW.
Ventilation calculation.
- Air exchange per 1 square meter: 0.13 m3 / h;
- Total air volume for ventilation: 472.5 m3 / h;
- Total heat loss by ventilation: 13.15 kW.
Total heat loss by the object: 39.6 kW.
Required boiler power.
- Heat loss by the object: 39.6 kW;
- Boiler power reserve: 10%;
- Recommended boiler power: 44 kWt.
- Defro DUO 50 kW(for burning coal);
- AGRO UNI 50 kW
- OPTIMA PLUS MAX 50 kW(for wood burning).
Fuel consumption for heating. Heating cost.
Boiler efficiency: 90%
- Bituminous coal (5600 kcal / kg). Taking into account the boiler efficiency - 5040 kcal / kg or 5.85 kW * h / kg.
- Bituminous coal (4800 kcal / kg). Taking into account the boiler efficiency - 4320 kcal / kg or 5.02 kW * h / kg.
- Pellets (2500 kcal / kg). Taking into account the boiler efficiency - 2250 kcal / kg or 2.61 kW * h / kg.
- Wood (3400 kcal / kg). Taking into account the boiler efficiency - 3060 kcal / kg or 3.55 kW * h / kg.
- Diesel fuel (10,000 kcal / kg). Taking into account the boiler efficiency - 9000 kcal / kg or 10.45 kW * h / kg.
- Gas (9500 kcal / kg). Taking into account the boiler efficiency - 8550 kcal / kg or 9.93 kW * h / kg.
Index | Month | Per season (+ DHW) | ||||||||
September | October | November | December | January | February | March | April | May | ||
Average temperature, ° C | 11,3 | 5,6 | -1,2 | -5,2 | -6,5 | -6,7 | -1,0 | 6,7 | 13,2 | |
Heat loss, kW | 5,12 | 8,47 | 12,47 | 14,82 | 15,59 | 15,71 | 12,35 | 7,82 | 4 | |
Gcal | 3,17 | 5,25 | 7,73 | 9,19 | 9,67 | 9,74 | 7,66 | 4,85 | 2,48 | 70,05 |
Coal consumption (5600), kg / month | 629 | 1042 | 1534 | 1824 | 1919 | 1933 | 1520 | 963 | 493 | 13898 |
Coal consumption (4800), kg / month | 734 | 1216 | 1790 | 2128 | 2239 | 2255 | 1774 | 1123 | 575 | 16215 |
Pellet consumption, kg / month | 1409 | 2334 | 3436 | 4085 | 4298 | 4329 | 3405 | 2156 | 1103 | 31132 |
Wood consumption, m 3 / month | 1,59 | 2,64 | 3,89 | 4,62 | 4,86 | 4,9 | 3,85 | 2,44 | 1,25 | 35,22 |
Diesel fuel consumption, liter / month | 420 | 695 | 1023 | 1216 | 1280 | 1289 | 1014 | 642 | 329 | 9265 |
Gas consumption, m 3 / month | 464 | 768 | 1131 | 1344 | 1414 | 1424 | 1120 | 710 | 363 | 10241 |
Electric, kW * hour / month | 11054 | 18295 | 26935 | 32017 | 33669 | 33923 | 26681 | 16898 | 8640 | 243996 |
Heating cost:
The cost of heating with coal (5600 kcal / kg) will be 83 389 rubles for the season.
At the price of coal - RUB 6,000 / t and boiler efficiency is 90%.
The cost of heating with coal (4800 kcal / kg) will be 20 268 rubles for the season.
At the price of coal - 1250 rub / t and boiler efficiency is 90%.
The cost of heating with pellets will be 186 791 rubles for the season.
At the price of pellets - RUB 6,000 / t and boiler efficiency is 90%.
The cost of heating with wood will be 47 543 rubles for the season.
At the price of wood - 1350 rub /cub.m and boiler efficiency is 90%.
The cost of heating with diesel fuel will be 305 760 rubles for the season.
At the price of diesel fuel - 33 rub / liter and boiler efficiency is 90%.
The cost of heating with gas will be 44 650 rubles for the season.
At the price of gas - 4.36 rubles / cubic meter and boiler efficiency is 90%.
Boiler efficiency: 80%
- Bituminous coal (5600 kcal / kg). Taking into account the boiler efficiency - 4480 kcal / kg or 5.20 kW * h / kg.
- Bituminous coal (4800 kcal / kg). Taking into account the boiler efficiency - 3840 kcal / kg or 4.46 kW * h / kg.
- Pellets (2500 kcal / kg). Taking into account the boiler efficiency - 2000 kcal / kg or 2.32 kW * h / kg.
- Wood (3400 kcal / kg). Taking into account the boiler efficiency - 2720 kcal / kg or 3.16 kW * h / kg.
- Diesel fuel (10,000 kcal / kg). Taking into account the boiler efficiency - 8000 kcal / kg or 9.29 kW * h / kg.
- Gas (9500 kcal / kg). Taking into account the boiler efficiency - 7600 kcal / kg or 8.82 kW * h / kg.
Index | Month | Per season (+ DHW) | ||||||||
September | October | November | December | January | February | March | April | May | ||
Average temperature, ° C | 11,3 | 5,6 | -1,2 | -5,2 | -6,5 | -6,7 | -1,0 | 6,7 | 13,2 | |
Heat loss, kW | 5,12 | 8,47 | 12,47 | 14,82 | 15,59 | 15,71 | 12,35 | 7,82 | 4 | |
Gcal | 3,17 | 5,25 | 7,73 | 9,19 | 9,67 | 9,74 | 7,66 | 4,85 | 2,48 | 70,05 |
Coal consumption (5600), kg / month | 708 | 1172 | 1726 | 2052 | 2159 | 2175 | 1710 | 1083 | 554 | 15635 |
Coal consumption (4800), kg / month | 826 | 1368 | 2014 | 2394 | 2519 | 2537 | 1995 | 1264 | 646 | 18241 |
Pellet consumption, kg / month | 1585 | 2625 | 3865 | 4595 | 4835 | 4870 | 3830 | 2425 | 1240 | 35023 |
Wood consumption, m 3 / month | 1,79 | 2,97 | 4,37 | 5,2 | 5,47 | 5,51 | 4,33 | 2,74 | 1,4 | 39,62 |
Diesel fuel consumption, liter / month | 472 | 782 | 1151 | 1368 | 1439 | 1450 | 1140 | 722 | 370 | 10424 |
Gas consumption, m 3 / month | 522 | 864 | 1272 | 1512 | 1591 | 1602 | 1260 | 798 | 408 | 11521 |
Electric, kW * hour / month | 11054 | 18295 | 26935 | 32017 | 33669 | 33923 | 26681 | 16898 | 8640 | 243996 |
Heating cost:
The cost of heating with coal (5600 kcal / kg) will be 93 813 rubles for the season.
At the price of coal - RUB 6,000 / t and the boiler efficiency is 80%.
The cost of heating with stone (4800 kcal / kg) will be 22 802 rubles for the season.
At the price of coal - 1250 rub / t and the boiler efficiency is 80%.
The cost of heating with pellets will be 210 140 rubles for the season.
At the price of pellets - RUB 6,000 / t and the boiler efficiency is 80%.
The cost of heating with wood will be 53 486 rubles for the season.
At the price of wood - 1350 rub /cub.m and the boiler efficiency is 80%.
The cost of heating with diesel fuel will be 343 980 rubles for the season.
At the price of diesel fuel - 33 rub / liter and the boiler efficiency is 80%.
The cost of heating with gas will be 50 231 rubles for the season.
At the price of gas - 4.36 rubles / cubic meter and the boiler efficiency is 80%.
Boiler efficiency: 70%
- Bituminous coal (5600 kcal / kg). Taking into account the boiler efficiency - 3920 kcal / kg or 4.55 kW * h / kg.
- Bituminous coal (4800 kcal / kg). Taking into account the boiler efficiency - 3360 kcal / kg or 3.9 kW * h / kg.
- Pellets (2500 kcal / kg). Taking into account the boiler efficiency - 1750 kcal / kg or 2.03 kW * h / kg.
- Wood (3400 kcal / kg). Taking into account the boiler efficiency - 2380 kcal / kg or 2.76 kW * h / kg.
- Diesel fuel (10,000 kcal / kg). Taking into account the boiler efficiency - 7000 kcal / kg or 8.13 kW * h / kg.
Index | Month | Per season (+ DHW) | ||||||||
September | October | November | December | January | February | March | April | May | ||
Average temperature, ° C | 11,3 | 5,6 | -1,2 | -5,2 | -6,5 | -6,7 | -1,0 | 6,7 | 13,2 | |
Heat loss, kW | 5,12 | 8,47 | 12,47 | 14,82 | 15,59 | 15,71 | 12,35 | 7,82 | 4 | |
Gcal | 3,17 | 5,25 | 7,73 | 9,19 | 9,67 | 9,74 | 7,66 | 4,85 | 2,48 | 70,05 |
Coal consumption (5600), kg / month | 809 | 1340 | 1972 | 2345 | 2467 | 2485 | 1955 | 1238 | 633 | 17869 |
Coal consumption (4800), kg / month | 944 | 1563 | 2301 | 2736 | 2878 | 2899 | 2280 | 1444 | 739 | 20847 |
Pellet consumption, kg / month | 1812 | 3000 | 4418 | 5252 | 5526 | 5566 | 4378 | 2772 | 1418 | 40027 |
Wood consumption, m 3 / month | 2,05 | 3,39 | 5 | 5,94 | 6,25 | 6,3 | 4,95 | 3,14 | 1,6 | 45,28 |
Diesel fuel consumption, liter / month | 540 | 893 | 1315 | 1563 | 1645 | 1657 | 1303 | 825 | 422 | 11913 |
Electric, kW * hour / month | 11054 | 18295 | 26935 | 32017 | 33669 | 33923 | 26681 | 16898 | 8640 | 243996 |
Heating cost:
The cost of heating with coal (5600 kcal / kg) will be 107,214 rubles for the season.
At the price of coal - RUB 6,000 / t and the boiler efficiency is 70%.
The cost of heating with coal (4800 kcal / kg) will be 26 059 rubles for the season.
At the price of coal - 1250 rub / t and the boiler efficiency is 70%.
The cost of heating with pellets will be 240 160 rubles for the season.
At the price of pellets - RUB 6,000 / t and the boiler efficiency is 70%.
The cost of heating with wood will be 61,127 rubles for the season.
At the price of wood - 1350 rub /cub.m and the boiler efficiency is 70%.
The cost of heating with diesel fuel will be 393 120 rubles for the season.
At the price of diesel fuel - 4.36 rubles / liter and the boiler efficiency is 70%.
For a 50 kW boiler, a chimney with an inner diameter is suitable 200 mm and height 9 m.
Option 3
- Two-storey house with an area of 300 square meters, ceiling height 3 meters, the height of the building in the ridge - 7.5 meters.
- Dimensions (edit) building:
- Length: 15 m
- Width: 10 m
- The floor area of the first floor (average) is: 300 (building area) / 2 (number of storeys) = 150 square meters.
- The volume of the building, taking into account the height in the ridge, is: 1012.5 cubic meters.
- Heating system- closed.
- Insulation degree- above average:
- wall material - silica brick, layer thickness: 0.25 m;
- wall insulation - mineral wool, insulation thickness: 0.1 m;
- roofing material - spruce (15% moisture), layer thickness: 0.04 m;
- roof insulation - mineral wool, insulation thickness: 0.05 m;
- roof covering - slate (asbestos), thickness: 0.008 m;
- floor insulation material - expanded clay 200, insulation thickness: 0.05 m;
- glazing - double glazing in a split partition, area: 25 square meters;
- entrance openings - metal insulated external doors (two doors), area: 5 square meters.
- Ventilation average premises - 50%
- Desired comfort temperature in the house: 20 ° С.
- Hot water supply not required.
Central heating calculation.
- For the structure of such an area, dimensions (15m x 10m) and the degree of insulation, heat losses will be:
- Heat loss through the walls: 4.34 kW;
- Heat loss through the roof: 6.1 kW;
- Heat losses through the entrance openings: 0.12 kW;
- Heat loss through the floor: 2.92 kW;
- Heat loss through windows: 3.69 kW.
Total heat losses for heating: 17.18 kW.
Hot water supply calculation.
- Heat consumption for water heating: 0 kW.
Ventilation calculation.
- Air exchange per 1 square meter: 0.14 m3 / h;
- Total air volume for ventilation: 506.25 m3 / h;
- Total heat loss by ventilation: 14.09 kW.
Total heat loss by the facility: 31.27 kW.
Required boiler power.
- Heat loss by the object: 31.27 kW;
- Boiler power reserve: 10%;
- Recommended boiler power: 35 kWt.
- Defro DUO 35 kW(for burning coal);
- AGRO UNI 35 kW(for burning pellets and biomass);
- OPTIMA KOMFORT PLUS 35 kW(for wood burning).
Fuel consumption for heating. Heating cost.
Boiler efficiency: 90%
- Bituminous coal (5600 kcal / kg). Taking into account the boiler efficiency - 5040 kcal / kg or 5.85 kW * h / kg.
- Bituminous coal (4800 kcal / kg). Taking into account the boiler efficiency - 4320 kcal / kg or 5.02 kW * h / kg.
- Pellets (2500 kcal / kg). Taking into account the boiler efficiency - 2250 kcal / kg or 2.61 kW * h / kg.
- Wood (3400 kcal / kg). Taking into account the boiler efficiency - 3060 kcal / kg or 3.55 kW * h / kg.
- Diesel fuel (10,000 kcal / kg). Taking into account the boiler efficiency - 9000 kcal / kg or 10.45 kW * h / kg.
- Gas (9500 kcal / kg). Taking into account the boiler efficiency - 8550 kcal / kg or 9.93 kW * h / kg.
Index | Month | Per season (+ DHW) | ||||||||
September | October | November | December | January | February | March | April | May | ||
Average temperature, ° C | 11,3 | 5,6 | -1,2 | -5,2 | -6,5 | -6,7 | -1,0 | 6,7 | 13,2 | |
Heat loss, kW | 4,19 | 6,93 | 10,2 | 12,12 | 12,75 | 12,85 | 10,1 | 6,4 | 3,27 | |
Gcal | 2,6 | 4,3 | 6,32 | 7,52 | 7,91 | 7,97 | 6,26 | 3,97 | 2,03 | 48,88 |
Coal consumption (5600), kg / month | 516 | 854 | 1254 | 1493 | 1570 | 1582 | 1243 | 788 | 403 | 9698 |
Coal consumption (4800), kg / month | 602 | 996 | 1463 | 1741 | 1832 | 1845 | 1450 | 919 | 470 | 11315 |
Pellet consumption, kg / month | 1156 | 1912 | 2809 | 3343 | 3516 | 3543 | 2783 | 1765 | 903 | 21724 |
Wood consumption, m 3 / month | 1,31 | 2,16 | 3,18 | 3,78 | 3,98 | 4,01 | 3,15 | 2 | 1,02 | 24,58 |
Diesel fuel consumption, liter / month | 344 | 569 | 836 | 995 | 1047 | 1055 | 829 | 526 | 269 | 6466 |
Gas consumption, m 3 / month | 381 | 629 | 924 | 1100 | 1157 | 1166 | 916 | 581 | 297 | 7146 |
Electric, kW * hour / month | 9041 | 14964 | 22030 | 26187 | 27537 | 27745 | 21822 | 13821 | 7066 | 170265 |
Heating cost:
The cost of heating with coal (5600 kcal / kg) will be 58 190 rubles for the season.
At the price of coal - RUB 6,000 / t and boiler efficiency is 90%.
The cost of heating with coal (4800 kcal / kg) will be 14 144 rubles for the season.
At the price of coal - 1250 rub / t and boiler efficiency is 90%.
The cost of heating with pellets will be 130 347 rubles for the season.
At the price of pellets - RUB 6,000 / t and boiler efficiency is 90%.
The cost of heating with wood will be 33 176 rubles for the season.
At the price of wood - 1350 rub /cub.m and boiler efficiency is 90%.
The cost of heating with diesel fuel will be 213 365 rubles for the season.
At the price of diesel fuel - 33 rub / liter and boiler efficiency is 90%.
The cost of heating with gas will be 31,157 rubles for the season.
At the price of gas - 4.36 rubles / cubic meter and boiler efficiency is 90%.
Boiler efficiency: 80%
- Bituminous coal (5600 kcal / kg). Taking into account the boiler efficiency - 4480 kcal / kg or 5.20 kW * h / kg.
- Bituminous coal (4800 kcal / kg). Taking into account the boiler efficiency - 3840 kcal / kg or 4.46 kW * h / kg.
- Pellets (2500 kcal / kg). Taking into account the boiler efficiency - 2000 kcal / kg or 2.32 kW * h / kg.
- Wood (3400 kcal / kg). Taking into account the boiler efficiency - 2720 kcal / kg or 3.16 kW * h / kg.
- Diesel fuel (10,000 kcal / kg). Taking into account the boiler efficiency - 8000 kcal / kg or 9.29 kW * h / kg.
- Gas (9500 kcal / kg). Taking into account the boiler efficiency - 7600 kcal / kg or 8.82 kW * h / kg.
Index | Month | Per season (+ DHW) | ||||||||
September | October | November | December | January | February | March | April | May | ||
Average temperature, ° C | 11,3 | 5,6 | -1,2 | -5,2 | -6,5 | -6,7 | -1,0 | 6,7 | 13,2 | |
Heat loss, kW | 4,19 | 6,93 | 10,2 | 12,12 | 12,75 | 12,85 | 10,1 | 6,4 | 3,27 | |
Gcal | 2,6 | 4,3 | 6,32 | 7,52 | 7,91 | 7,97 | 6,26 | 3,97 | 2,03 | 48,88 |
Coal consumption (5600), kg / month | 581 | 960 | 1411 | 1679 | 1766 | 1780 | 1398 | 887 | 454 | 10911 |
Coal consumption (4800), kg / month | 678 | 1120 | 1646 | 1959 | 2060 | 2076 | 1631 | 1034 | 529 | 12729 |
Pellet consumption, kg / month | 1300 | 2150 | 3160 | 3760 | 3955 | 3985 | 3130 | 1985 | 1015 | 24440 |
Wood consumption, m 3 / month | 1,47 | 2,43 | 3,57 | 4,25 | 4,47 | 4,51 | 3,54 | 2,25 | 1,15 | 27,65 |
Diesel fuel consumption, liter / month | 387 | 640 | 941 | 1120 | 1178 | 1187 | 932 | 591 | 303 | 7274 |
Gas consumption, m 3 / month | 428 | 708 | 1040 | 1237 | 1301 | 1311 | 1030 | 653 | 334 | 8039 |
Electric, kW * hour / month | 9041 | 14964 | 22030 | 26187 | 27537 | 27745 | 21822 | 13821 | 7066 | 170265 |
Heating cost:
The cost of heating with coal (5600 kcal / kg) will be 65 464 rubles for the season.
At the price of coal - RUB 6,000 / t and the boiler efficiency is 80%.
The cost of heating with stone (4800 kcal / kg) will be 15 911 rubles for the season.
At the price of coal - 1250 rub / t and the boiler efficiency is 80%.
The cost of heating with pellets will be 146 640 rubles for the season.
At the price of pellets - RUB 6,000 / t and the boiler efficiency is 80%.
The cost of heating with wood will be 37 324 rubles for the season.
At the price of wood - 1350 rub /cub.m and the boiler efficiency is 80%.
The cost of heating with diesel fuel will be 240,036 rubles for the season.
At the price of diesel fuel - 33 rub / liter and the boiler efficiency is 80%.
The cost of heating with gas will be 35 052 rubles for the season.
At the price of gas - 4.36 rubles / cubic meter and the boiler efficiency is 80%.
Boiler efficiency: 70%
- Bituminous coal (5600 kcal / kg). Taking into account the boiler efficiency - 3920 kcal / kg or 4.55 kW * h / kg.
- Bituminous coal (4800 kcal / kg). Taking into account the boiler efficiency - 3360 kcal / kg or 3.9 kW * h / kg.
- Pellets (2500 kcal / kg). Taking into account the boiler efficiency - 1750 kcal / kg or 2.03 kW * h / kg.
- Wood (3400 kcal / kg). Taking into account the boiler efficiency - 2380 kcal / kg or 2.76 kW * h / kg.
- Diesel fuel (10,000 kcal / kg). Taking into account the boiler efficiency - 7000 kcal / kg or 8.13 kW * h / kg.
Index | Month | Per season (+ DHW) | ||||||||
September | October | November | December | January | February | March | April | May | ||
Average temperature, ° C | 11,3 | 5,6 | -1,2 | -5,2 | -6,5 | -6,7 | -1,0 | 6,7 | 13,2 | |
Heat loss, kW | 4,19 | 6,93 | 10,2 | 12,12 | 12,75 | 12,85 | 10,1 | 6,4 | 3,27 | |
Gcal | 2,6 | 4,3 | 6,32 | 7,52 | 7,91 | 7,97 | 6,26 | 3,97 | 2,03 | 48,88 |
Coal consumption (5600), kg / month | 664 | 1097 | 1613 | 1919 | 2018 | 2034 | 1597 | 1013 | 518 | 12469 |
Coal consumption (4800), kg / month | 774 | 1280 | 1881 | 2239 | 2355 | 2373 | 1864 | 1182 | 605 | 14548 |
Pellet consumption, kg / month | 1486 | 2458 | 3612 | 4298 | 4520 | 4555 | 3578 | 2269 | 1160 | 27931 |
Wood consumption, m 3 / month | 1,68 | 2,78 | 4,09 | 4,86 | 5,11 | 5,15 | 4,05 | 2,57 | 1,31 | 31,6 |
Diesel fuel consumption, liter / month | 443 | 732 | 1075 | 1279 | 1346 | 1356 | 1065 | 676 | 346 | 8313 |
Electric, kW * hour / month | 9041 | 14964 | 22030 | 26187 | 27537 | 27745 | 21822 | 13821 | 7066 | 170265 |
Heating cost:
The cost of heating with coal (5600 kcal / kg) will be 74 816 rubles for the season.
At the price of coal - RUB 6,000 / t and the boiler efficiency is 70%.
The cost of heating with coal (4800 kcal / kg) will be 18 185 rubles for the season.
At the price of coal - 1250 rub / t and the boiler efficiency is 70%.
The cost of heating with pellets will be 167 589 rubles for the season.
At the price of pellets - RUB 6,000 / t and boiler efficiency is 90%.
The cost of heating with wood will be 42 655 rubles for the season.
At the price of wood - 1350 rub /cub.m and boiler efficiency is 90%.
The cost of heating with diesel fuel will be 274 327 rubles for the season.
At the price of diesel fuel - 4.36 rubles / liter and boiler efficiency is 90%.
For a 35 kW boiler, a chimney with an inner diameter is suitable 200 mm and height 8 m.
Option 4
- Three-storey house with an area of 300 square meters, ceiling height 3.2 meters, building height in the ridge - 11.5 meters.
- Dimensions (edit) building:
- Length: 10 m
- Width: 10 m
- The floor area of the first floor (average) is: 300 (building area) / 3 (number of storeys) = 100 square meters.
- The volume of the building, taking into account the height in the ridge, is: 1055 cubic meters.
- Heating system- closed.
- Insulation degree- high:
- wall material - red clay brick, layer thickness: 0.7 m;
- wall insulation - PS-1 foam, insulation thickness: 0.15 m;
- roofing material - Scots pine (15% moisture content), layer thickness: 0.04 m;
- roof insulation - mineral wool, insulation thickness: 0.1 m;
- roof covering - profiled sheet, thickness: 0.002 m;
- floor insulation material - expanded clay 200, insulation thickness: 0.1 m;
- glazing - 3-chamber pvc profiles. area: 26 square meters;
- entrance openings - metal insulated external doors, area: 3 square meters.
- Ventilation average premises - 50%
- Desired comfort temperature in the house: 20 ° С.
- Hot water supply- indirect heating boiler - 250 liters (family of 4).
Central heating calculation.
- For the structure of such an area, dimensions (10m x 10m) and the degree of insulation, heat losses will be:
- Heat loss through the walls: 4.45 kW;
- Heat loss through the roof: 2.38 kW;
- Heat losses through the entrance openings: 0.07 kW;
- Heat loss through the floor: 1.75 kW;
- Heat loss through windows: 2.82 kW.
Total heat losses for heating: 11.47 kW.
Hot water supply calculation.
- Hot water consumption per person is 70 liters per day. For a family of four, the hot water consumption will be 280 l / day.
- Heat consumption for water heating: 0.91 kW.
Ventilation calculation.
- Air exchange per 1 square meter: 0.15 m3 / h;
- Total air volume for ventilation: 527.5 m3 / h;
- Total heat loss by ventilation: 14.68 kW.
Total heat loss by the facility: 27.06 kW.
Required boiler power.
- Heat loss by the object: 27.06 kW;
- Boiler power reserve: 10%;
- Recommended boiler power: 30 kWt.
- KOMFORT EKO 30 kW(for burning coal);
- DEFRO AKM UNI 30 kW(for burning pellets and biomass);
- OPTIMA KOMFORT PLUS 30 kW(for wood burning).
Fuel consumption for heating. Heating cost.
Boiler efficiency: 90%
- Bituminous coal (5600 kcal / kg). Taking into account the boiler efficiency - 5040 kcal / kg or 5.85 kW * h / kg.
- Bituminous coal (4800 kcal / kg). Taking into account the boiler efficiency - 4320 kcal / kg or 5.02 kW * h / kg.
- Pellets (2500 kcal / kg). Taking into account the boiler efficiency - 2250 kcal / kg or 2.61 kW * h / kg.
- Wood (3400 kcal / kg). Taking into account the boiler efficiency - 3060 kcal / kg or 3.55 kW * h / kg.
- Diesel fuel (10,000 kcal / kg). Taking into account the boiler efficiency - 9000 kcal / kg or 10.45 kW * h / kg.
- Gas (9500 kcal / kg). Taking into account the boiler efficiency - 8550 kcal / kg or 9.93 kW * h / kg.
Index | Month | Per season (+ DHW) | ||||||||
September | October | November | December | January | February | March | April | May | ||
Average temperature, ° C | 11,3 | 5,6 | -1,2 | -5,2 | -6,5 | -6,7 | -1,0 | 6,7 | 13,2 | |
Heat loss, kW | 3,5 | 5,79 | 8,53 | 10,14 | 10,66 | 10,74 | 8,45 | 5,35 | 2,74 | |
Gcal | 2,17 | 3,59 | 5,29 | 6,29 | 6,61 | 6,66 | 5,24 | 3,32 | 1,7 | 47,74 |
Coal consumption (5600), kg / month | 431 | 713 | 1050 | 1249 | 1312 | 1322 | 1040 | 659 | 338 | 9472 |
Coal consumption (4800), kg / month | 503 | 832 | 1225 | 1457 | 1531 | 1542 | 1213 | 769 | 394 | 11051 |
Pellet consumption, kg / month | 965 | 1596 | 2352 | 2796 | 2938 | 2960 | 2329 | 1476 | 756 | 21218 |
Wood consumption, m 3 / month | 1,09 | 1,8 | 2,66 | 3,16 | 3,32 | 3,35 | 2,63 | 1,67 | 0,85 | 24 |
Diesel fuel consumption, liter / month | 288 | 475 | 700 | 833 | 875 | 881 | 694 | 440 | 225 | 6315 |
Gas consumption, m 3 / month | 318 | 525 | 774 | 920 | 967 | 974 | 767 | 486 | 249 | 6980 |
Electric, kW * hour / month | 7561 | 12515 | 18425 | 21901 | 23031 | 23205 | 18251 | 11559 | 5910 | 166298 |
Heating cost:
The cost of heating with coal (5600 kcal / kg) will be 56 835 rubles for the season.
At the price of coal - RUB 6,000 / t and boiler efficiency is 90%.
The cost of heating with coal (4800 kcal / kg) will be 13 814 rubles for the season.
At the price of coal - 1250 rub / t and boiler efficiency is 90%.
The cost of heating with pellets will be 127 310 rubles for the season.
At the price of pellets - RUB 6,000 / t and boiler efficiency is 90%.
The cost of heating with wood will be 32 404 rubles for the season.
At the price of wood - 1350 rub /cub.m and boiler efficiency is 90%.
The cost of heating with diesel fuel will be 208 394 rubles for the season.
At the price of diesel fuel - 33 rub / liter and boiler efficiency is 90%.
The cost of heating with gas will be 30 432 rubles for the season.
At the price of gas - 4.36 rubles / cubic meter and boiler efficiency is 90%.
Boiler efficiency: 80%
- Bituminous coal (5600 kcal / kg). Taking into account the boiler efficiency - 4480 kcal / kg or 5.20 kW * h / kg.
- Bituminous coal (4800 kcal / kg). Taking into account the boiler efficiency - 3840 kcal / kg or 4.46 kW * h / kg.
- Pellets (2500 kcal / kg). Taking into account the boiler efficiency - 2000 kcal / kg or 2.32 kW * h / kg.
- Wood (3400 kcal / kg). Taking into account the boiler efficiency - 2720 kcal / kg or 3.16 kW * h / kg.
- Diesel fuel (10,000 kcal / kg). Taking into account the boiler efficiency - 8000 kcal / kg or 9.29 kW * h / kg.
- Gas (9500 kcal / kg). Taking into account the boiler efficiency - 7600 kcal / kg or 8.82 kW * h / kg.
Index | Month | Per season (+ DHW) | ||||||||
September | October | November | December | January | February | March | April | May | ||
Average temperature, ° C | 11,3 | 5,6 | -1,2 | -5,2 | -6,5 | -6,7 | -1,0 | 6,7 | 13,2 | |
Heat loss, kW | 3,5 | 5,79 | 8,53 | 10,14 | 10,66 | 10,74 | 8,45 | 5,35 | 2,74 | |
Gcal | 2,17 | 3,59 | 5,29 | 6,29 | 6,61 | 6,66 | 5,24 | 3,32 | 1,7 | 47,74 |
Coal consumption (5600), kg / month | 485 | 802 | 1181 | 1405 | 1476 | 1487 | 1170 | 742 | 380 | 10657 |
Coal consumption (4800), kg / month | 566 | 935 | 1378 | 1639 | 1722 | 1735 | 1365 | 865 | 443 | 12433 |
Pellet consumption, kg / month | 1085 | 1795 | 2645 | 3145 | 3305 | 3330 | 2620 | 1660 | 850 | 23871 |
Wood consumption, m 3 / month | 1,23 | 2,03 | 2,99 | 3,56 | 3,74 | 3,77 | 2,96 | 1,88 | 0,96 | 27 |
Diesel fuel consumption, liter / month | 323 | 535 | 788 | 937 | 984 | 992 | 780 | 495 | 253 | 7104 |
Gas consumption, m 3 / month | 357 | 591 | 871 | 1035 | 1088 | 1096 | 862 | 547 | 280 | 7852 |
Electric, kW * hour / month | 7561 | 12515 | 18425 | 21901 | 23031 | 23205 | 18251 | 11559 | 5910 | 166298 |
Heating cost:
The cost of heating with coal (5600 kcal / kg) will be 63 939 rubles for the season.
At the price of coal - RUB 6,000 / t and the boiler efficiency is 80%.
The cost of heating with stone (4800 kcal / kg) will be 15 541 rubles for the season.
At the price of coal - 1250 rub / t and the boiler efficiency is 80%.
The cost of heating with pellets will be 143 224 rubles for the season.
At the price of pellets - RUB 6,000 / t and the boiler efficiency is 80%.
The cost of heating with wood will be 36 454 rubles for the season.
At the price of wood - 1350 rub /cub.m and the boiler efficiency is 80%.
The cost of heating with diesel fuel will be 234 443 rubles for the season.
At the price of diesel fuel - 33 rub / liter and the boiler efficiency is 80%.
The cost of heating with gas will be 34 235 rubles for the season.
At the price of gas - 4.36 rubles / cubic meter and the boiler efficiency is 80%.
Boiler efficiency: 70%
- Bituminous coal (5600 kcal / kg). Taking into account the boiler efficiency - 3920 kcal / kg or 4.55 kW * h / kg.
- Bituminous coal (4800 kcal / kg). Taking into account the boiler efficiency - 3360 kcal / kg or 3.9 kW * h / kg.
- Pellets (2500 kcal / kg). Taking into account the boiler efficiency - 1750 kcal / kg or 2.03 kW * h / kg.
- Wood (3400 kcal / kg). Taking into account the boiler efficiency - 2380 kcal / kg or 2.76 kW * h / kg.
- Diesel fuel (10,000 kcal / kg). Taking into account the boiler efficiency - 7000 kcal / kg or 8.13 kW * h / kg.
Index | Month | Per season (+ DHW) | ||||||||
September | October | November | December | January | February | March | April | May | ||
Average temperature, ° C | 11,3 | 5,6 | -1,2 | -5,2 | -6,5 | -6,7 | -1,0 | 6,7 | 13,2 | |
Heat loss, kW | 3,5 | 5,79 | 8,53 | 10,14 | 10,66 | 10,74 | 8,45 | 5,35 | 2,74 | |
Gcal | 2,17 | 3,59 | 5,29 | 6,29 | 6,61 | 6,66 | 5,24 | 3,32 | 1,7 | 47,74 |
Coal consumption (5600), kg / month | 554 | 916 | 1350 | 1605 | 1687 | 1699 | 1337 | 847 | 434 | 12179 |
Coal consumption (4800), kg / month | 646 | 1069 | 1575 | 1873 | 1968 | 1983 | 1560 | 989 | 506 | 14209 |
Pellet consumption, kg / month | 1240 | 2052 | 3023 | 3595 | 3778 | 3806 | 2995 | 1898 | 972 | 27281 |
Wood consumption, m 3 / month | 1,4 | 2,32 | 3,42 | 4,07 | 4,27 | 4,31 | 3,39 | 2,15 | 1,1 | 30,86 |
Diesel fuel consumption, liter / month | 370 | 611 | 900 | 1070 | 1125 | 1133 | 892 | 565 | 290 | 8119 |
Electric, kW * hour / month | 7561 | 12515 | 18425 | 21901 | 23031 | 23205 | 18251 | 11559 | 5910 | 166298 |
Heating cost:
The cost of heating with coal (5600 kcal / kg) will be 73 073 rubles for the season.
At the price of coal - RUB 6,000 / t and the boiler efficiency is 70%.
The cost of heating with coal (4800 kcal / kg) will be 17 761 rubles for the season.
At the price of coal - 1250 rub / t and the boiler efficiency is 70%.
The cost of heating with pellets will be 163 684 rubles for the season.
At the price of pellets - RUB 6,000 / t and the boiler efficiency is 70%.
The cost of heating with wood will be 41 662 rubles for the season.
At the price of wood - 1350 rub /cub.m and the boiler efficiency is 70%.
The cost of heating with diesel fuel will be 267 935 rubles for the season.
At the price of diesel fuel - 4.36 rubles / liter and the boiler efficiency is 70%.
For a boiler with a capacity of 30 kW, a chimney with an inner diameter is suitable 180 mm and height 8 m.
The degree of insulation is determined based on the total heat loss of the building and depends on the material, thickness and number of layers:
- - enclosing structures
- - walls;
- - wall insulation;
- - roofs;
- - roof insulation;
- - roof coverings;
- - floor insulation;
And also on the type and area of glazing and entrance openings.
Examples of non-insulated buildings:
The walls are single-layer (without insulation), made of a material with a coefficient of thermal conductivity above 1.300 - concrete on crushed stone, reinforced concrete, solid concrete ...
Insulation materials for the roof and floor are single-layer or absent.
Examples of buildings with a low degree of insulation:
The walls are single-layer, made of material with a thermal conductivity coefficient from 0.440 to 1.300 - silicate brick, ceramic brick, slag brick, red clay brick, FBS block, alabaster slab, hollow brick.
The floor and roof are insulated.
Examples of buildings with a medium degree of insulation:
Mostly single-layer, made of material with a thermal conductivity coefficient from 0.090 to 0.440 - TEPLOSTEN block, multi-layer construction cardboard, wood, silica brick, ceramic brick, thermal insulation concrete, timber timber, gypsum board, expanded clay concrete, foam concrete, building gypsum, ceramic brick (hollow), hollow brick.
The floor and roof are insulated.
Examples of buildings with a high degree of insulation:
Mostly two- or multi-layer, walls and insulation are made of material with a coefficient of thermal conductivity for walls - up to 1.000, for insulation - from 0.001 to 0.085 - polyurethane foam, fiberglass, polystyrene foam, polystyrene, expanded polystyrene, foam rubber, mineral wool, glass wool, dry wood sawdust.
The floor and roof are insulated.
Gas boilers - This The best decision for gasified premises. The main advantages of using gas boilers: they are easy to operate and maintain, compact, suitable for heating a private house and non-residential premises.
Technical characteristics and types of gas boilers
When choosing a gas heating boiler, you should take into account its main characteristics: type of combustion chamber, number of circuits, type of installation.
According to the installation method, gas heating boilers are:
- floor-standing: such boilers are characterized by high power, long-term operation, but it is recommended to allocate a separate room for them;
- wall-mounted (mounted): they are lightweight, compact, their cost is much lower than the price of floor-standing ones.
Today, both single-circuit gas boilers, which provide only heating, and double-circuit ones, are equally popular. The functions of the latter include both heating and water heating. It is the boilers with two circuits that are most often purchased for home and summer cottages.
The following boiler models are distinguished by the type of combustion chamber.
- With an open combustion chamber - oxygen in this case consumed from the room in which the equipment is installed.
- With a closed combustion chamber (or a turbocharged gas boiler) - receives oxygen from the street. Such models have several advantages:
- easy installation and operation;
- high efficiency;
- safety;
- the need to use a simple coaxial chimney with a small diameter.
Where to buy a gas boiler?
In the Teplomatika company you can buy online gas boilers wholesale and retail. Our qualified staff will carry out the installation and connection of heating gas systems... We are selling products of the highest quality at affordable prices.
You can order a gas boiler in several ways - by sending the product to the basket or making a purchase in one click. All information about the terms of delivery is contained in a separate one.
A heating gas boiler is a device that uses the combustion of fuel (natural or liquefied gas) to heat the coolant.
The device (design) of a gas boiler: burner, heat exchanger, heat-insulated housing, hydraulic block, as well as safety and control devices. Such gas boilers require a chimney to be connected to remove the combustion products. The chimney can be either a conventional vertical or coaxial ("pipe in pipe") for boilers with a closed combustion chamber. Many modern boilers are equipped with built-in pumps for forced water circulation.
The principle of operation of a gas boiler- the coolant, passing through the heat exchanger, heats up and then circulates through the heating system, giving off the received thermal energy through radiators, underfloor heating, heated towel rails, and also providing water heating in an indirect heating boiler (if it is connected to a gas boiler).
A heat exchanger is a metal container in which a coolant (water or antifreeze) is heated - it can be made of steel, cast iron, copper, etc. The reliability and durability of a gas boiler depend on the quality of the heat exchanger in the first place. Cast iron heat exchangers are corrosion resistant and have long term service, but are sensitive to sudden temperature changes and are distinguished by significant weight. Steel containers can suffer from rust, therefore their inner surfaces are protected with various anti-corrosion coatings, which ensure the prolongation of the "life" of the device. Steel heat exchangers are most commonly used in boiler manufacturing. Corrosion is not terrible for copper heat exchangers, and due to their high heat transfer coefficient, low weight and dimensions, such heat exchangers are often used in wall-mounted boilers, but of the minuses, it should be noted that they are more expensive than steel ones.
In addition to the heat exchanger, an important part of gas boilers is the burner, which can be different types: atmospheric or ventilated, one-stage or two-stage, with smooth modulation, double.
To control the gas boiler, automation is used with various settings and functions (for example, a weather-dependent control system), as well as devices for programming the operation and remote control of the boiler.
The main technical characteristics of gas heating boilers are: power, number of heating circuits, type of fuel., Type of combustion chamber, type of burner, installation method, presence of a pump and an expansion tank, boiler control automation.
To determine required power gas heating boiler for private country house or an apartment, a simple formula is used - 1 kW of boiler power to heat 10 m 2 of a well-insulated room with a ceiling height of up to 3 m. winter garden, premises with non-standard ceilings etc. the power of the gas boiler must be increased. It is also necessary to increase the power (about 20-50%) when providing a gas boiler and hot water supply (especially if it is necessary to heat the water in the pool).
The peculiarity of calculating the power for gas boilers: the nominal gas pressure at which the boiler operates at 100% of the capacity declared by the manufacturer, for most boilers is from 13 to 20 mbar, and the actual pressure in gas networks in Russia can be 10 mbar, and sometimes even lower ... Accordingly, a gas boiler often works only at 2/3 of its capabilities and this must be taken into account when calculating. In more detail, with the table for calculating the power of the heating boiler, you can
Most gas boilers can be transfer from work from natural gas for liquefied gas(bottled propane). Many models switch to liquefied gas at the factory (check these model characteristics when purchasing), or gas boiler additionally supplied nozzles (jets) for switching to bottled gas.
Pros and cons of gas boilers:
Boiler piping- these are devices for the full operation of the heating and water supply system. It includes: pumps, expansion tanks, filters (if necessary), collectors, return and safety valves, air valves, valves, etc. You will also need to purchase radiators, connecting pipes and valves, thermostats, a boiler, etc. The issue of choosing a boiler is quite serious, therefore, it is better to entrust the selection of equipment and its complete set to professionals.
What is the best boiler? On the Russian market gas boiler equipment has its own leaders in quality and reliability. The best manufacturers and brands of gas boilers are presented in the range:
"Premium class" or "Lux"- the most reliable and durable, easy to operate, the kit is assembled as a "constructor", more expensive than others. These manufacturers include German companies
The creation of a heating system for a private house goes through a number of stages:
- technical task,
- design with selection of equipment,
- equipment,
- installation of a boiler room and home heating.
And at each stage, the wishes of the Customer are clarified and corrected. This mainly concerns the parameters of housing, the number of residents, consumer properties and the cost of the system. Since boiler equipment makes up a significant part of the cost and determines essential properties of the future heating system (and hence the parameters of the comfort of life in the house), it may be useful for the Customer to navigate the proposed boiler models. At least in general outline understand what he will pay his money for.
This review is intended to facilitate the Customer's understanding of the features of the boilers offered by various manufacturers, based on their main consumer properties. Rest specifications we will leave it to the specialists (although they are also important).
To carry out a correct comparison of the properties of boilers from different manufacturers, the same type of equipment with the following parameters was selected:
- power 40-50 kW;
- fuel - gas;
- atmospheric single-stage burner.
Reduced power boilers can be used for the design and installation of heating systems for houses with an area of 300 - 350 square meters, taking into account hot water supply (average indicator). Since the required volume of prepared hot water for houses of such an area usually goes beyond the scope of models with a built-in boiler, the review draws attention to the equipment of boiler models with external boilers from the same manufacturer.
The main consumer characteristics are:
- durability is determined by a number of indicators that are not provided by manufacturers. Operating statistics are also not published in the open press. Although there are separate opinions of suppliers and consumers, a simplified objective parameter (which can be checked) is adopted in the review - this is the cast iron grade from which the heat exchanger is made. Ductile iron heat exchangers have a higher durability;
- gas consumption;
- minimum gas pressure, which determines the burner operation threshold under conditions of reduced pressure in the gas supply line;
- availability of automation own production, which allows you to control additional circuits of the heating system (hot water supply, underfloor heating, heated towel rails, swimming pool, etc.) in automatic mode;
- price.
It should be noted that some indicators are almost identical for the models of most manufacturers.
The efficiency of the majority is at the level of 89-91%, however, some manufacturers offer models with higher efficiency, therefore this figure is given for all models.
The nominal gas consumption for models of all manufacturers is 5.2-5.8 cubic meters. per hour, therefore this indicator is not considered in the review for each model separately.
The working gas pressure for all models is 20 mbar, but manufacturers offer a kit for working at reduced pressure, which is different for different manufacturers.
The review is based on technical documentation manufacturers and prices of the main suppliers (representative offices and dealers) of boiler equipment. The absolute values of prices in rubles are given as of May 2009. Despite the fact that they are constantly changing, the relative picture of values is quite possible to imagine.
Manufacturer: Viessmann (Germany)
Model: Vitogas GS1D375
Power: 48 kW
Efficiency: 83-92%
Automation: included, possible different options... Allows integration with the smart home control system. The listed price includes a control kit for one heating circuit without a boiler.
Cost: about 117 304 rubles. (in the catalog of the representative office - 2666 EURO).
General characteristics: increased service life due to the material of the heat exchanger, it is possible to connect to " smart home". If there is no need for automation, you still have to pay for it.
Manufacturer: Buderus (Germany)
Model: Logano G234WS
Power: 50 kW
Heat exchanger material: high quality ductile iron
Efficiency: 89-91
Minimum gas pressure, mbar: 10
Automation: own production, various options are possible. Allows integration with the smart home control system.
Cost: about 110,714 rubles. without automation, 131,206 rubles. with automation similar to the previous model.
General characteristics: increased boiler service life due to high-quality cast iron of our own production, it is possible to connect to a "smart home". When buying, you should pay attention to the following nuance - although automation is not included in the kit, you still have to purchase it (in the minimum version), since the boiler does not work without it. Boilers of similar design are offered ( color solution), but cylindrical(boilers are cubic).
Manufacturer: Wolf (Germany)
Model: ComfortLine CNG-48
Power: 48 kW
Heat exchanger material: ductile iron
Efficiency: up to 95%
Minimum gas pressure, mbar: not specified
Automation: own production R11 (plug connection system).
Cost: about 133 320 rubles. (in the catalog of the representative office - 3030 EURO).
General characteristics: increased boiler service life, low noise level, high efficiency. We offer boilers that differ in design from the boiler (cylindrical boiler, cubic boiler).
Manufacturer: Vaillant (Germany)
Model: atmoVIT VK INT 484/15
Power: 49 kW
Heat exchanger material: ductile iron
Efficiency: 92%
Minimum gas pressure, mbar: not specified
Automation: own production VRC.
Cost: about 99 704 rubles. (in the catalog of the representative office - 2266 EURO).
General characteristics: increased service life, plug system of connections Pro-E (for connecting external automation and sensors), it is possible to connect to a "smart home". Boilers of the same design as the boiler are offered.
Manufacturer: Lamborghini (Italy)
Model: Gaster 51
Power: 51 kW
Heat exchanger material: ductile iron
Efficiency: 92%
Minimum gas pressure, mbar: not specified
Automation: additional installation is not provided (for this model).
Cost: about 105,000 - 107,000 rubles.
General characteristics: increased service life, for a boiler without automation - overpriced.
Model DTG EcoNOx 230-6
Power: 45 kW
Heat exchanger material: ductile iron
Efficiency: 95-96%
Automation: own production, module RX77 S, not included in the package.
Cost: about 106,539 rubles.
General characteristics: increased service life, high efficiency, the possibility of completing with an inflatable burner and additional automation. The boiler is available in one design. The boiler can be installed under the boiler, which saves space in the boiler room.
Manufacturer: De Dietrich (France)
Model: DTG 48N
Power: 48 kW
Efficiency: 90%
Automation: additional equipment is not completed (this model).
Cost: about 70,160 - 73,000 rubles.
General characteristics: a cheaper (and less attractive design) model of the boiler from this manufacturer. Boiler design - for the previous model.
Additional automation is not installed.
Model: Edena 2 Progress 50 SE
Power: 50 kW
Heat exchanger material: ductile iron
Efficiency: 91.9%
Minimum gas pressure, mbar: 5
Automation: own production SP4, not included in the package.
Price: about 103,776 rubles. (Group of companies "Maestro").
General characteristics: increased service life, the possibility of a complete set with the usual, or environmentally friendly (with a reduced content harmful substances) burner. Boiler design of the boiler, allows the installation of additional automation.
Manufacturer: Chappee (France)
Model: EDENA Classic E 44
Power: 44 kW
Heat exchanger material: ductile iron
Efficiency: 91%
Minimum gas pressure, mbar: 5
Automation: additional installation is not provided (for this model).
Cost: about 79212 rubles. (Group of companies "Maestro").
General characteristics: a cheaper model with a ductile iron heat exchanger. Made in a simplified design, boilers of a similar design are not produced (only for the previous model).
Manufacturer: Baxi (Italy)
Model: CREATIS 1/2 Xenium SE 50
Power: 50 kW
Heat exchanger material: ductile iron
Efficiency: 90%
Minimum gas pressure, mbar: 5
Automation: own production - Ecocontrol, not included in the package.
Cost: about 92,000 rubles.
General characteristics: a boiler with a ductile iron heat exchanger of the middle price category, two types of configuration are possible - with a conventional burner and an environmentally friendly one (reduced content of harmful substances). External boilers of a similar design.
Manufacturer: Baxi (Italy)
Model: Slim 1.490iN
Power: 48 kW
Heat exchanger material: ordinary cast iron
Efficiency: 90%
Minimum gas pressure, mbar: 5
Automation: weather-dependent - included (without outside temperature sensor).
Cost: about 65,925 rubles. (in the catalog of the representative office - 1 465 EURO).
General characteristics: a boiler with a "narrow" design, weather-dependent automation included, additional control of the circuits is not provided. It is possible to switch to the "warm floor" mode - it is convenient when heating a private house with the "warm floor" system. It is possible to connect a boiler of a similar design. Connection of additional automatic circuit control is not provided.
Manufacturer: Roca (Spain)
Model: G 200/50 GT
Power: 44 kW
Heat exchanger material: ductile iron
Efficiency: 94%
Minimum gas pressure, mbar: not specified
Automation: own production - Confort SE, not included in the package.
Cost: about 83 996 rubles. (representative office - Group of companies "Maestro").
General characteristics: increased service life, high efficiency, installation of additional automation is possible.
Manufacturer: Rapido (Germany)
Model: GA110 / 46E
Power: 47 kW
Heat exchanger material: ductile iron GG 20
Efficiency: 94%
Minimum gas pressure, mbar: not specified
Automation: own production Rapidomatic, not included in the package.
Cost: about 96 107 rubles. (in the catalog of the representative office - 2149 EURO).
General characteristics: increased service life, high efficiency, the ability to install additional automation (plug connection system) and a boiler of similar design. The boiler can be installed under the boiler, which saves space in the boiler room.
Manufacturer: Biassi (Italy)
Model: Kappa 44 R
Power: 44 kW
Heat exchanger material: self-produced ductile iron, EN GJL200
Efficiency: 91.2%
Minimum gas pressure, mbar: 4
Automation: own production, not included
Cost: about 69,960 rubles. (in the catalog of the representative office - 1 590 EURO).
General characteristics: increased service life, one of the inexpensive boilers with a ductile iron heat exchanger (own production). The burner operation is set to low gas pressure. It is possible to connect additional automation and an external boiler (cylindrical design, in colors boiler).
Manufacturer: Ferroli (Italy)
Model: Pegasus D 45
Power: 45 kW
Efficiency: 91%
Minimum gas pressure, mbar: 5
Automation: no own.
Cost: about 77,968 rubles. (in the catalog of the representative office - 1 772 EURO).
General characteristics: a boiler with average performance, can be equipped with Siemens automation, operates at a minimum gas pressure of 5 mbar. Relevant for the implementation of a boiler room on "manual" control.
Manufacturer: Junkers (Germany)
Model: SUPRALINE K45-8 E
Power: 45 kW
Heat exchanger material: ductile iron (made in France)
Efficiency: 91.8%
Minimum gas pressure, mbar: 13
Automation: own - Supraline, not included in the package.
Cost: about 55,000 - 62,000 rubles.
General characteristics: an inexpensive boiler with a ductile iron heat exchanger. Insufficient information support of the representative office.
Manufacturer: Protherm (Slovakia)
Model: Bear 60KLO
Power: 49 kW
Heat exchanger material: cast iron
Efficiency: 92%
Minimum gas pressure, mbar: not specified
Automation: no own.
Cost: about 52 948 rubles.
General characteristics: a budget option boiler without automation.
Manufacturer: Dakon (Czech Republic)
Model: GL 50 EKO
Power: 46 kW
Heat exchanger material: cast iron
Efficiency: 89-92%
Minimum gas pressure, mbar: not specified
Automation: supplied separately, from Komextherm.
Cost: about 66 600 rubles.
General characteristics: a budget boiler, automation is theoretically supplied, almost not all sellers have it in stock.
Manufacturer: Viadrus (Czech Republic)
Model: GARDE G 42
Power: 42-49kw
Heat exchanger material: cast iron
Efficiency: 90%
Minimum gas pressure, mbar: not specified
Automation: absent.
Cost: about 55 692 rubles.
General characteristics: budget boiler without automation. The basic model is equipped with a two-stage burner. Gas models of this manufacturer are characterized in different ways, it has proven itself well solid fuel model with automatic fuel supply.
Producer: Nova Florida (Italy)
Model: RTN E 48
Power: 48 kW
Heat exchanger material: cast iron
Efficiency: 90%
Minimum gas pressure, mbar: not specified
Automation: absent.
Cost: about 61,424 rubles.
General characteristics: a budget boiler of sufficient quality for systems without automation.
In conclusion, what do we pay for when choosing a boiler:
- for the high-quality material of the heat exchanger - ductile cast iron determines the service life of the most expensive and massive part of the boiler. Of course, you can change the heat exchanger, but in practice this means replacing the entire boiler. Some manufacturers allow the replacement of sections, but this "pleasure" is not cheap;
- for automation, which provides control of additional circuits. Automatic installation boiler water temperature and summer / winter mode are present in all models. If you are not sure whether automation will be required in the future, it makes sense to choose boilers with their own automation, which can be installed separately (if required). It makes sense to choose boilers without their own automation, if it is really not needed. Although in this case it is possible to install automation from other manufacturers, it just requires the participation (and payment) of more qualified specialists;
- per trade mark, the fame of which also has value, and the reputation of the manufacturer gives hope for more high level product quality.
In addition to the models reviewed, the market offers products from several other manufacturers. This leaves room for the manifestation of their own analytical abilities.
In any case, the choice of the parameters of boiler equipment for the needs of the projected heating system is the responsibility of specialists, and the consumer has the right to understand the validity of his own costs for the purchase of equipment that will be offered to him.
The specialists of "Ing-In" have the necessary qualifications to make a reasonable choice of equipment that meets your capabilities and technical needs of the projected heating system for your home.