Model CFC ClearFire Commercial Boilers
62 Rev. 05-2012
Vertical Venting
Inside Combustion
Air
See Figure B5-52.
Figure B5-52. Inside Air - Vertical Vent
As noted in Paragraph A above, these installations use air from within the boiler
room for combustion. The same recommendations apply as noted in Paragraph A
above and also, the recommendations on flue vent sizing according to Table B5-25.
CFC Boiler
Flue Gas Vent
24"
Minimum
10'-0" or Less
48"
Minimum
Termination