Closing off a boiler and a furnace how do i ventilate

Actually I forgot there is a chimney flue in that room with the boiler and the furnace is that an adequate source of fresh air. Along with the two vents in the door 12×12 upper and lower

Guest User | 9 years and 4 months ago

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Guest User | 9 years and 4 months ago

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In a one family house the boiler and furnace will be in a room 11 by 6 feet cement board on two sides cement on two sides there’s no windows should I just put events in the cement board? And what is a fire damper. Could a fire damper be put in cement board?

nyc_sport | 9 years and 4 months ago

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There must be direct fresh air vents to the outside. The heating experts will chime in, but vent sizes are specified by code.

steam_man | 9 years and 4 months ago

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.

steam_man | 9 years and 4 months ago

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nycsport is correct. The NYC Mechanical Code Chapter 7 deals with Combustion Air requirements.

steam_man | 9 years and 4 months ago

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This is ridiculous. I’ve tried retyping my long ass reply 4 times and I keep getting an error from Brownstoner. Bottom line check the Mechanical Code. It’s all in Chapter 7.

anotherposter | 9 years and 4 months ago

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Sounds similar to our mechanical room that was recently part of a cellar upgrade. We hired pros to do it all (we had a had a fair amount of filing to do for structural, electrical, etc.) and said we wanted it all to code and since we passed actual inspections, I assume it is. I’m not home and can’t remember the exact set up but I think there’s a duct/hose running through the cement board to our coal chute. The chute has a door on the inside and a fancy Bilco hatch outside (in the front garden) that has vents on it. I think this hatch is a good way to deal with these issues because other contractors working around the blocks near us regularly bring homeowners over to look at it. Not sure about the fire damper.