Gas and oil furnaces burn fuel to provide heat for homes, and that presents a basic problem. Every combustion process produces noxious gases. How do you keep those gases from circulating throughout ...

Dear Jim: Last time my furnace was serviced, the technician asked if I had ever had the ducts cleaned and I see ads on television about it. How can I tell if they need to be cleaned and how do I ...

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 to ...