Originally Posted by
big windy
The exhaust vent and cold air intake are 3"x 6' w 3 elbows
returns are 2-14"x8" and a 6" round
send vents 10"x8" , 10"x24", 18"x8"
Rheem was 80 vented to chimney .
If I am over sized what are my options . None of the 4 contractors did static tests etc. Looks like I have a bigger problem than a switch eh.
Since it was just installed, I would be demanding to see the load calculation. And if it is in fact oversized, I would be wanting the proper sized unit.
If the unit is sized properly and the ductwork is the problem, then you need new ductwork. But if the contractor never mentioned the need for ductwork, I would be asking for pretty good price.
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If you don't know, then don't do. If you don't know and still do, then be prepared to pay someone else a lot to undo what you did and then do it right.
If you do know, then do. But do it right. Otherwise, you may not be doing it long.