A condensing gas furnace uses ____ from a condensing type heat exchanger to increase the furnace efficiency.

Question

Quizplus · Accepted Answer

A condensing gas furnace uses latent heat from a condensing type heat exchanger to increase the furnace efficiency. The heat exchanger extracts heat from the flue gases to preheat the incoming air, thereby increasing efficiency. The latent heat, which would otherwise be lost in a non-condensing furnace, is harnessed to heat the home, resulting in increased efficiency and lower energy bills.

A Condensing Gas Furnace Uses ____ from a Condensing Type