A furnace heat exchanger keeps dangerous gases out of the air circulating in the building. It's a must-have on any furnace that burns gas or oil.

A furnace heat exchanger is an essential component of a furnace. ... There are several types of fuels that a heat exchanger can use to create heat. Natural gas is most common however, ...

Heat exchangers are the components that draw heat from the burned gas. To draw more heat from the air they burn, energy-efficient furnaces supplement the primary exchanger with a second exchanger.

Secondary Heat Exchanger, The Key Component. ... For every 100,000 BTU/hr of heat input, a condensing gas furnace will make roughly 1 gallon of water per hour. In other words, a 120,000-BTU furnace ...

On all furnaces, the static pressure achieved by the system blower can overcome any positive pressure in an atmospheric draft appliance. On draft-induced appliances, the pressure within the heat ...

A natural gas furnace works by igniting natural gas inside of your furnace's burner. The flames heat up a metal heat exchanger, which in turns heats incoming cold air received from your home's ...

Perhaps worst of all for homeowners are the proposed regulations for new natural-gas furnaces ... The big difference between the two is that a condensing furnace has a second heat exchanger that ...