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  1. Thread: Return needed?

    by FBA
    Replies
    4
    Views
    542

    Thanks - though I won't be able to push as much...

    Thanks - though I won't be able to push as much air through a grill as having the doors open, I will try that for now and see if I get gains. Cost is obviously marginal to try. I will look at...
  2. Thread: Return needed?

    by FBA
    Replies
    4
    Views
    542

    My mistake... The room measures 14 x 14 with 9...

    My mistake...

    The room measures 14 x 14 with 9 ft ceilings. Attic is located right above. I did locate one return and there is indeed airflow, but the room is stil hot with the doors closed. ...
  3. Thread: Return needed?

    by FBA
    Replies
    4
    Views
    542

    Return needed?

    I'm hoping someone can help me with this --

    I have an upstairs bedroom measuring about 300 SQ ft with only one floor mounted duct. Duct volume is quite low, and there seems to be no return in...
  4. Replies
    3
    Views
    1,466

    Heat pump shuts off when aux heat comes on?

    Hi --

    Need some help and the original installer is off for the next few days. My system is as follows:

    1) 5 ton Carrier heat pump (R410 I believe)
    2) Oil furnace (15 yrs old)
    3) RTH8500D...
  5. Replies
    2
    Views
    493

    Aux heat during defrost?

    Hi all -- I'm new here and have a simple question.

    I have 3 heat pumps installed in my home and know just enough to be dangerous:D.

    My question --

    The main heat pump is a 5-ton and uses an...
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