Chimney's Size vs. Boiler Power
The size of chimney vs. boiler's heat load.
- 1 kW = 3412 Btu/h
Required chimney area vs. boiler heat load:
Boiler Capacity | Required Chimney Area | ||
---|---|---|---|
kW | Btu/h | cm2 | in2 |
15 | 51000 | 115 | 18 |
23 | 78000 | 150 | 23 |
35 | 119000 | 200 | 31 |
46 | 157000 | 250 | 39 |
58 | 198000 | 300 | 47 |
70 | 239000 | 350 | 54 |
81 | 276000 | 400 | 62 |
93 | 317000 | 450 | 70 |
104 | 355000 | 500 | 78 |
116 | 396000 | 550 | 85 |
Remember, always check local authorities before final design.
Related Topics
-
Combustion
Combustion processes and their efficiency. Boiler house and chimney topics. Properties of fuels like oil, gas, coal and wood and more. Safety valves and tanks.
Related Documents
-
Chimney Sizing
Calculate chimney draft and required chimney area - online calculator. -
Chimneys - Roof Termination
Chimneys and single wall vents roof termination. -
Chimneys and Fireplace Sizing
Chimneys and fireplaces for stoves burning wood or coal as fuel. -
Natural Draft - Air Flow Volume and Velocity
Air flow - volume and velocity - due to stack or flue effect caused by indoor hot and outdoor cold temperature difference.