The Infinity® 98 gas furnace line with Greenspeed intelligence operates at a gentle, low capacity up to 90 percent of the time. When combined with an Infinity control, the modulating gas valve in the ...

Skipping the manufacturer's instructions during installation may result in a furnace that fails within six months or less. For example, heat exchangers can crack from improper venting, and gas valves ...

Derived from the Latin word fornax, meaning oven, a furnace is a large heating appliance designed to evenly distribute heat throughout a building. Furnaces accomplish this by burning fuel internally ...

Your home is a machine, in a way, with many straightforward controls like thermostats and light switches. But there are dozens more that are less obvious, like the kill switches and cutoff valves for ...

Replacing the old furnace in your central heating system with a new, more efficient model can offset volatile energy prices. (So far, it’s predicted that fuel costs will go up this winter.) Money ...

Lee Wallender is a home improvement writer of nearly 20 years and specializes in home remodeling, repair and maintenance. Sami Allen is the managing editor at Forbes Home, with over seven years of ...