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August 26, 2009
Kitchen/Bath Vent Needs to
...vent all the way to the roof? Is this correct? But if there's a window in the kitchen within some distance, no need for a vent?
Since you can't use the furnace vent for anything else, does this mean, say, a ground-floor kitchen or bath needs a separate 4-storey vent?
Comments
I don't know what the code is but I've installed several range hoods that vent out the nearest exterior wall. If the hood is not on the wall itslef you usually run it the shortest distance through or above the adjacent wall cabinets and install a "dryer like" flap mechanism on the outside wall.
Posted by: daveinbedstuy at August 26, 2009 11:47 AM
Just what I have on parlor floor. I'm building a new interior bath on ground floor, and would be easy to vent out the back, but was told that's not allowed.
Posted by: cmu at August 26, 2009 12:37 PM
CMU: whomever told you it was not allowed was mistaken. You absolutely can vent to the outside through the wall unless the vent would be within two feet of a window used for "natural light and air ventilation" for a habitable room for your own residence or four feet from the same type of window for an adjacent residence. A backdraft damper would be desireable and probably also required.
Posted by: HDL at August 26, 2009 5:16 PM
Can vent out back if it is clear of residential windows...
Backdraft damper is pretty standard for most unit fans...
If you have appropriate windows the exhaust isn't required but I'd install it anyway...you don't always open your windows but you always want to exhaust the humidity...
Posted by: young archi at September 2, 2009 2:25 PM
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