DC73
Well-known member
Nevermind - Job is done.
I figured it out with some help from CSP (thanks).
DC
I figured it out with some help from CSP (thanks).
DC
Last edited:
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an alternative browser.
You should upgrade or use an alternative browser.
HVAC For Workshop - Have Install ? For The Gurus
- Thread starter DC73
- Start date
csp
Well-known member
Is your return air coming in from the bottom or from the side of the furnace?
Your flex gas line between the shutoff and gas valve will be fine at 1/2".
Insulation should be continuous on the suction line (larger one) all the way from the condenser to the coil.
Your flex gas line between the shutoff and gas valve will be fine at 1/2".
Insulation should be continuous on the suction line (larger one) all the way from the condenser to the coil.
Last edited:
csp
Well-known member
So it the question how to seal the bottom of the furnace case to the return duct/box? Is it a sheetmetal box that the furnace sits on?
Pictures would be most helpful....
Pictures would be most helpful....
csp
Well-known member
Understand the sealing part. That's why I was asking what the furnace is going to be sitting on. Is this plywood floor a box of some sort? You said that it's going to be drawing return air from the bottom, as in the bottom of the furnace case in the intake. Or is there going to be a hole cut in the side of the bottom part of the furnace?
Honestly it doesn't really have to be sealed if the furnace closet is located within the conditioned space. The little bit of leakage is still conditioned air. If this closest it outside of the conditioned envelope the sealing does become important.
Honestly it doesn't really have to be sealed if the furnace closet is located within the conditioned space. The little bit of leakage is still conditioned air. If this closest it outside of the conditioned envelope the sealing does become important.
Last edited:
csp
Well-known member
Belt and suspenders approach: Generous application of duct mastic along with UL listed aluminum tape (not cloth based "duct" tape).
The problem is the wood won't expand and contract at the same rate that the furnace housing does and the seal will eventually crack. It will take a long time though.
The problem is the wood won't expand and contract at the same rate that the furnace housing does and the seal will eventually crack. It will take a long time though.
D.J.
Well-known member
Part of the beauty of this forum is for info and when you delete it is a disservice to everyone!