Coleman furnaces are available from local heating and cooling specialists. To search for local dealers by zip code, potential customers can visit the website for Coleman Heating and Air Conditioning.
As of 2015, Coleman offers three series of furnaces varying by energy efficiency, blower motor and heater system. Basic models, such as those in the Comforteer series, feature single-stage heaters with constant-speed motors. The mid-range LX series also offers single-stage systems with a better energy efficiency than the Comforteer models.
The LX and Echelon series offer two-stage heating systems with variable-speed motors. Two-stage furnaces save energy because the burner is able to operate at high and low, and not just on and off like a single-stage model. The variable-speed blower motor also adds to the energy efficiency of the furnace, since it is not always operating at the same speed.
Most Coleman furnaces include a lifetime, limited warranty on the heat exchanger and a 10-year limited warranty on parts. The less efficient models in the LX series with an 80 percent annual fuel utilization efficiency include a 20-year limited warranty on the heat exchanger. In order to guarantee the warranties, the product must be registered within 90 days of installation. If the product is not registered in a timely fashion, the heat exchanger reverts to a 20-year warranty and the parts to a five-year warranty.