Page 1 of 1
Outside air vent.
Posted: Fri Jan 04, 2008 2:03 pm
by flcruising
Would it be a bad idea to block off the outside air duct that connects to our furnace? We're all electric.
Posted: Fri Jan 04, 2008 5:45 pm
by Greg
If you are totally electric heat it should be ok to stull the duct with insulation. The duct is designed to take outside air in for combustion in a gas or oil furnace. Greg
RE: Outside air vent.
Posted: Sat Jan 05, 2008 5:18 pm
by SpongeBob
Hi Aaron,
If the furnace is offline completely go ahead as Greg said and stuff it. However, if it still in running condition, put a post-a-note in an obvious location so that the next person who tries to operate it will know what you have done. Just another layer of safety and only takes a moment.
-Bob
Posted: Sat Jan 05, 2008 10:25 pm
by flcruising
This is a new house, and there's never been gas installed. Our owner's information mentions a passive whole house ventilation system, which I'm assuming is refering to this outside air duct. I don't see a need to heat/condition outside air, am I wrong? Yes, this furnace is in use too.
RE: Outside air vent.
Posted: Tue Jan 08, 2008 1:42 am
by Robert
Hi,
Is it a flex duct coming down from roof and connecting to front or rear of furnace at midway point just above blower motor housing ?
If so, it is for mixing fresh outside air with the return air in home to keep it fresher and less stale.
The blower motor pulls the air in through a roof vent and down the flex duct when blower is running.
It doesn't effect the Furnace and is best to leave open.
Thanks,
Robert