I happened to walk around the far side of our Lennox furnace while it
was running today and noticed a cool draught. On closer investigation I
found two holes in the side a little more than 1/8" in diameter from
which cold air was blowing out.
There are several screws in that particular panel, and where the main
part of the furnace connects to the part above it all the joins and
unused screw holes are sealed with what looks like silicone caulk. Yet
here are these other two unsealed holes from which cold air is blowing.
Does it seem likely that these holes should have been sealed too? Should
there be cold air escaping from the furnace?
This is Turtle.
If your running cooling mode on your furnace and you feel cold air coming out
from the area above the furnace. i would seal them up with duct tape or
caulking. No air should be coming out of any part of left or right side of the
furnace and also the back side at all. Seal them up.
On Wed, 09 Feb 2005 00:15:42 -0500, "Percival P. Cassidy"
NO, there should be no holes. Maybe there was an electrical box on
there or something in the past.
You can use a hi-temp silicone on them (like the red stuff made for
automotive use), or it might be easier to just put sheet metal screws
in them, or small nit and bolt if you can get your hand inside to put
the nut on the bolt.
(if you use the silicone, let it dry before turning on the furnace or
it will blow out. Screws are probably easier.
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