Help Luxaire Furnace age

Serial # 11310002 4U90

Serial # 11310082 4178

Two units in the same house

Hey, Rick. I think your “4U90” is a typo. I believe that U should be a number. Nonetheless, the first one is 1990 and the second one is 1978.

Russel, Please email me the password to enter or how to get into the site (free)

If I recall, Nick has given us the info sometime ago. Cannot find it.