Treating carbon steel components to improve their surface properties such as hardness via the carburising process is a well established technology. And yet even today, aft er many years of development ...

Most noncondensing residential furnaces use natural draft to drive the combustion process. Even 80%-AFUE furnaces with combustion blowers are natural-draft furnaces. The combustion blower in an 80% ...

Bob is a service technician who is well trained and nationally certified. However, he sometimes suffers from the same confusion that all technicians occasionally do - the facts that he gathers may or ...

Question: I had a high-efficiency furnace installed last year and I have a gas water heater as well. I didn’t get a hard sell from the furnace seller about back-draft problems, but he did mention it ...

This seemingly smart summer habit could be harming your HVAC system.