Combustion gases exhaust through the flue ... Electric furnaces are easiest to replace and cost the least, while ...

This heat energy is transferred to the air in the home via a heat exchanger that keeps exhaust ... today’s high-efficiency models convert at least 90 percent. Today’s top gas furnaces actually ...

Innovations in technology continue to shape our lives in many different ways. That includes the systems we incorporate into our homes. With the push for more sustainable lifestyles driving such ...