Sealing basement air vents - will I damage my hvac?

SeaKozJuly 2, 2012

Hi Folks,

This is sort of a long setup:

I had the asbestos removed from my basement and now my air vents don't screw in anymore. The basement is going to be remodeled in 4 months, in the meantime, I've covered my air vents with plastic and duct tape. I've completely sealed off one vent and have significantly covered the other two (I've taped off the sides but not the top and bottom. The result has been great, my basement is now only a few degrees cooler than the rest of the house (as opposed to 10 degrees cooler).

My question:

Am I going to damage my HVAC system by sealing the basement vents like this? My assumption is that I'm just going to get more air on the main floor.

Relevant info (maybe?):

I have a Trane heat pump that was installed last year, the blower is the kind that always runs on very low and then goes higher when the house wants to cool down. The house is a 1956.

Thanks!

SeaKoz

Thank you for reporting this comment. Undo
energy_rater_la

do you have dampers at the supply plenum
for these ducts?
it is much better to stop air flow there
than at the register.
sealing the supplies may increase the static
pressure of the duct system.

why not check for dampers and call the
installer for his/her opinion?

best of luck.

    Bookmark   July 3, 2012 at 10:19AM
Thank you for reporting this comment. Undo
SeaKoz

I don't have accessible dampers, the ducting that supplies my basement also supplies my main floor and the ducting is all behind drywall. The ducting was installed 60 years ago.

Thanks!

SeaKoz

    Bookmark   July 3, 2012 at 12:03PM
Sign Up to comment
More Discussions
Enery efficiency of exposed ductwork?
What are your thoughts on the energy efficiency of...
ccintx
I Like the Forum Changes
IMO; this new forum setup is an improvement...
udarrell
$10,000 for a Furnace and A/C? Seems pricey....
Hello, So we bought our house a bit over a year ago...
bonsaicowboy
auxiliary heat vs. emergency heat
Greetings, I have a Bryan Evoltion Control heat pump...
decadent
Navian condensing combi, good or bad?
Hi, I am looking into converting from oil to gas and...
rickyk22
People viewed this after searching for:
© 2015 Houzz Inc. Houzz® The new way to design your home™