Description: Allied Air Enterprises announces the new 97G2E Two-Stage Constant Torque Gas Furnace with 97% AFUE Efficiency under the Concord and Ducane brands. With energy savings even during the ...

Dear Jim: I am researching 2009 superefficient gas furnaces, which I hear can cut my gas bills in half. I am confused by the terms such as "stages," "variable blower speeds," "condensing," etc. Please ...

Shopping for a gas furnace? Read about types, features, and other must-know topics in our gas furnace buying guide to make an informed choice.

Question: The repairman says I need a new gas furnace. He recommends a super-efficient one because my chimney also needs repairs. What are my options for the best comfort and why is the chimney a ...