Our parent's furnace is somewhere around 30 years old. I was wondering if someone knows something about High Efficiency Furnaces. The home is about 1800sq Ft. We currently use oil but want to convert to gas.
Our parent's furnace is somewhere around 30 years old. I was wondering if someone knows something about High Efficiency Furnaces. The home is about 1800sq Ft. We currently use oil but want to convert to gas.