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Old 12-19-2011, 01:22 PM   #1
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Cover 2nd Floor Ceiling Height Air Returns In Heating Season??


Two floor house with an unfinished basement.

Have a Goodman-single stage - natural gas - forced air - 100K BTU furnace.

Air returns on 1st floor are at floor level. I have five(5) 16" v 10" ones.

The air returns in the four 2nd floor bedrooms are near the ceiling. I know this helps in the cooling season but in the heating season should I cover the air returns on 2nd floor?

A buddy told me to cover the 2nd floor ones, take temperature reading of supply air as furnace is burning, then uncover the 2nd floor returns and take another supply air temperature reading. Compare the two and if similar, the furnace has enough return air with 2nd floor vents covered.

Any thoughts?

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Old 12-19-2011, 02:33 PM   #2
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Cover 2nd Floor Ceiling Height Air Returns In Heating Season??


Don't do it. Your upstairs needs return air regardless of whether it's heating or cooling.

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Old 12-19-2011, 03:50 PM   #3
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Cover 2nd Floor Ceiling Height Air Returns In Heating Season??


You can close down some supply vents
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Old 12-19-2011, 04:01 PM   #4
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Cover 2nd Floor Ceiling Height Air Returns In Heating Season??


Quote:
Originally Posted by Tator1076 View Post
You can close down some supply vents

Dont want to close any supply vents in 2nd floor rooms. But you also suggest NOT COVERING any 2nd floor return grills near ceiling?
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Old 12-19-2011, 04:04 PM   #5
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Cover 2nd Floor Ceiling Height Air Returns In Heating Season??


That's correct.
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