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. ... Natural gas is most common however, liquid propane, fuel oil and electricity are also types of readily available fuel sources.

Q: I have an older oil-fired furnace that works very well and is dependable. The only complaint I have is that after the blower goes off it will come back on for a brief period after several minutes.

Many homeowners recently fired up their oil furnaces for the first time this season. If they’ve invested in proper service and maintenance, chances are high that their equipment will keep them ...

The International Fuel Gas and Oil Codes state that the heat exchanger should be checked on all service calls. The codes do not specify a method. The three-part procedure is as follows: 1. Watch the ...

This completely DIY casting furnace turned out just great thanks to all the work [Biolit11] put into it along the way. He wanted to replace his older furnace with one that was more efficient, and t… ...