Like buying a car, the furnace’s cost depends on the model you are looking at purchasing. Gas furnaces have different efficiency features. A basic gas furnace rated at 80% efficient with a high and low-speed fan motor is your most economical choice to purchasing. However, gas furnaces with 98% efficiency ratings have variable speed motors that help save on the cost of operation. This would be your loaded option, just as if you were buying a car with all the bells and whistles. It would essentially save you an additional 18% of your natural gas usage. Also, there are several mid-range models that are rated between 92% to 95% that can make great choices depending on your usage and target price range.

We have had installations range between $1,200 to $10,000, depending on your personal needs and your home’s variable