Changed this furn. on Fri. Old 1960 GE. 130K, gas fired, cast iron heat exchanger. How long you think it takes to heat this thing up??? Unit weight 350 lbs. House is 1100 sq. ft. Replaced it with a 80K 90+. They don't make em' like that anymore. Something to be grateful for.

[Edited by Boss on 12-28-2003 at 10:12 PM]