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Amitabh 01-11-2013 01:57 PM

Hello All

Not sure where this should be posted, but i have an issue that i am looking for what might it be.

Being winter here in Toronto, Canada. we must run our HVAC unit to keep our homes warm, so my thermastat is set to 22 celcious. The temperature on the main floor reads 22, however on the second floor (where our bedrooms are), the temperature is only 20 celcious. Its 20 in every room.

Why is that? What could i do to increase the temp, without raising the temperature of the main floor?

What causes this kind of issue?

Windows on Wash 01-11-2013 08:20 PM

Could be any number of issues.

Heat loss via air loss or conduction losses can drive temperature differentials.

Poorly sealed or balanced ducts can also affect distribution and balance.

Much more information would be needed about the home to clearly identify the causes.

joecaption 01-11-2013 08:27 PM

Thermastat location, no gaps under the doors, no or poor location of return air ducts, poor insulation in the attic, no air sealing in the attic.
SOmething as simple as partly closing some of the down stairs vents may forse more air up stairs.

Amitabh 01-12-2013 08:20 AM


What kind of information/factors/variables/measurements could i share with you?

My HVAC unit is a trane90, my house is 2700sq ft.

when i moved in all the external caulking was cracked and exposed. So, when i peeled back the old cracked caulking, i also noticed that there was no backer rob or window foam insulation. I was able to fix it for two windows, the other windows i just sealed over until the summer, when i will remove it.

Should i remove my moulding on the inside around the windows, and see if its insulated there?

other thoughts or ideas i could look at?

thank you in advance for the help


Windows on Wash 01-12-2013 08:34 AM

Windows are only a fraction of the issue.

Google Air Sealing and Insulation.

joecaption 01-12-2013 08:44 AM

Old wooden single paned windows?

Amitabh 01-12-2013 08:58 AM


Originally Posted by joecaption (Post 1091648)
Old wooden single paned windows?

i wish, my house is 8 years old and my windows are double paned.

it couldnt be the insulation (or lack of) behind the drywall right, i would assume the temperature to be much lower then no?

Fix'n it 01-12-2013 09:29 AM


Originally Posted by Amitabh (Post 1091658)
i wish, my house is 8 years old and my windows are double paned.

so you wish you had old crappy windows ?

Amitabh 01-14-2013 09:00 AM

i wish i had crappy windows, that way i know what my problem is!

im going to see if i can find any holes in my duct work in the basement and tape them up with aluminum tape. Maybe that will help. but still 2degree difference between floors. :|

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