I bought a house with an old furnace. Insurance company wants it replaced if it’s 30+ years. House was done in 1978, and I figured it was original. After looking at the model number, I was thinking maybe it’s an '82?. I googled a little bit to no avail, so I thought I might make a post here.
Also looks to be a 66,000 BTU output? Should I use this number to size the replacement when it’s time?
Thank you for any help guys/gals.