, posted Tue 8 Apr 11:57
We have a Lennox GH19P3-75 natural gas furnace in the house we just purchased. We wanted to change the filter but cannot find where it would go. Any ideas where to find it???? Thanks
Replies:
theduke03
"Re(1):Lennox GH19P3-75"
, posted Tue 8 Apr 17:04
On the front side of furnace, remove lower door. Inside where duct attaches to furnace will be a dirty filter.
"Lennox GH19P3-75" 
"Re(1):Lennox GH19P3-75"