mikeb33
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30 year old house in Chicago area with original furnace needs replacement. 1,800 sqft 2 story with partial basement. All windows replaced in past few years and attic has had additional insulation blown in. Current furnace is 100,000 btu. I have a quote now for an 80% and 96% replacement both 100,000 btu.
Question is: does this home still need a 100,000 btu furnace? Even with the 96% model? I would think an 80-90K btu would do? Do the furnace installers think this way or just replace with the same?
Question is: does this home still need a 100,000 btu furnace? Even with the 96% model? I would think an 80-90K btu would do? Do the furnace installers think this way or just replace with the same?