[dvcochran]

I will try to snap some pictures . I am stuck with one leg in the air for 6-weeks after a surgical repair.
if you can give me the item or brand name I may be able to figure it out. It for certain needs to be some kind of heat resistant weather stripping or such. But it does look like something was glued to the inside of the panels at one point.

 

[dvcochran]

Would you something like silicone tape?
I see this on Amazon: Silicone Tape
I also see products for sealing firebox doors and such but that seems overkill except for the furnace exhaust area which is not really in the area of concert

Pictures would be helpful - but there are several product, pending on what you have would tell us the best for you application.

This isn’t much but hopefully it helps:
The first photo is standing in front of the unit, farthest from the house. The indoor blower is under the square panel behind the condenser fan. It discharges into the indoor coil (evaporator) under the rectangular panel on the right side (in front of the burner exhaust. When I had these two panels off there was not sealer or insulation under them, but definite signs that something was once glued to them. Would something like silicone foam tape be a good choice:

Silicone Tape. I see products for sealing firebox doors and such but I don’t think that it would be a great air seal.
Can you recommend a product?

 

[dvcochran]

It has been a very good unit. The discharge air temp is only 2 degrees difference from the much newer upstairs unit. We are in middle TN where it is much hotter and humid than most people think. When it comes on during a typical 90 degree sunny summer day it usually runs until the sun starts going down, but the inside temp sets right at the thermostat setpoint (usually 71). It just doesn’t have a lot of airflow out of the vents so I don’t think the air gets back to the thermostat very good, even though it is right above the return filter.
I will try to run this unit until a major failure like a compressor or condenser. It is like its owner; old and needs a little service from time to time.
As far as brands, who do you put at the top of the list?
This is a pad mounted package unit FWIW.

 

[dvcochran]

I was actually able to get a 30' roll cheaper through SupplyHouse. We will see how it works. I assume it just goes around the perimeter of all the panels?