True. Make up air can be a problem. For cooler climates there are heat
exchangers that Transfer heat from exhaust vents (like the vent hood or fart
fans) & add it back into exterior air being drawn in.
Peace,
Pat
Pat Horne
We support Habitat for Humanity
On Sep 19, 2020, at 11:45 AM, Steven Trovato <strovato@optonline.net> wrote:
My stove hood has a fan in the attic that then vents out the side wall.
Definitely quieter. They make different cfm models. If you have a reasonably
tight house and a fireplace or furnace, a big fan can reverse the flow in the
flue and cause CO or smoke problems. It's not usually a problem with typical
consumer stuff, but if you want to suck pets into space like Jim, you should
consider where the replacement air is going to come from.
-Steve T.
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