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membryking · Oct 30, 2006, 01:48 PM

GM-Delco/heat, gas. Model #4926 450, house was built in 1959. What are specifications, size BTUs. I don't know how furnace size is rated, could this be 5 tons or less?

Thanks for your help

NorthernHeat · Oct 30, 2006, 02:59 PM

Air conditioning is measured in tons, 1 ton is equal to 12,000 BTU. Furnaces are measured in BTU. Look near the model # for a BTU input and bonnet capacity. If you told me area of country you live, building style, window condition and insulation in attic I could estimate what size you need based on square footage.

membryking · Oct 30, 2006, 05:01 PM

Originally Posted by NorthernHeat

Air conditioning is measured in tons, 1 ton is equal to 12,000 btu. Furnaces are measured in BTU. Look near the model # for a BTU input and bonnet capacity. If you told me area of country you live, building style, window condition and insulation in attic I could estimate what size you need based on square footage.

I can find nothing to indicate BTU input or bonnet capacity. I live in Savannah, GA, 3000 square foot brick ranch. The attic insulation is questionable; have only been in this house since July.

Thanks

NorthernHeat · Oct 31, 2006, 03:45 PM

Originally Posted by membryking

I can find nothing to indicate BTU input or bonnet capacity. I live in Savannah, GA, 3000 square foot brick ranch. The attic insulation is questionable; have only been in this house since July.

Thanks

Call a local contractor for a rough phone bid, tell him you just need a rough price and size for budgetary purposes. I'm not sure what size you need in Georgia as I've lived in the far north my whole life.