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Old 02-29-12, 07:48 AM   #41
abogart
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Quote:
Originally Posted by MN Renovator View Post
How is your furnace getting the make-up air now that you've just cut it off? You might be adding hazard here considering your basement goes into negative pressure when the furnace is running. Do you have an air inlet into your basement?

This is one concern of mine as well. The tighter I make my basement, the closer I get to having to add fresh air intakes for the furnace, water heater, and clothes dryer. I don't want to just let cold air into the open space in the basement, because that would pretty much cancel out all of my sealing efforts. I'm thinking about sealing each of the appliances, each having its own air intake from outside. I might be able to get away with letting the water heater suck air from the basement, as it has a draft hood on the vent and would be tough to seal up. The furnace has a forced draft fan, so it will need an air supply, and the dryer pumps massive amounts of air, so it will have to have its own air source as well.

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