One more question....do you know if the coil box is interchangeable between these models???

Thanks Again

It turns out that my heat exchanger is cracked wide open. I thought about welding it but I don't want to take any chances with carbon monoxide leaking in. I noticed a new heat exchanger for this furnace costs as much as a new replacement furnace :( Does anyone have an extra one for cheap??? If I rep...

Help! I light the pilot...no problem...flip on thermostate and furnace fires...no problem...the house heats up fine a couple of times but then something triggers the pilot/gas valve to go off. Tested the thermocouple and it clicks at 2 minutes. That seems long but it works. Tested the transfomer and...

http://www.eia.doe.gov/neic/experts/heatcalc.xls

I just found this link that will calculate my question above.

For my above example propane will cost $32.85 per million btu's and electic will cost 23.45 per same.

I might switch to the electric

Hello, I am thinking about replacing my gas furnace with electric. Has anyone figured out at what cost per KWH does electic heat become less expensive to run? Variables, 1992 Nordine gas furnace, standing pilot in 700ft2 1992 home Propane cost 3$ per gallon Electric cost 8 cents/kwh (cheap in this a...