Q. This is written concerning a furnace that was installed in 1984, before the high efficiency furnaces were available. Several times during a 24-hour period, the furnace will go through five or more ...

When the combustion air duct is connected directly to the return plenum for a furnace, the blower fan on the furnace pulls outdoor air in to the return plenum. To supply this air to the furnace room, ...

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 ...

Q: More than 40 years ago, I read an article about a man who heated his small home by centralizing the source of heat into the crawl space. Each room had a floor register placed under a window, and ...

Q: I’m confused about maintenance of my crawlspace, which also serves as a cold-air return plenum for an oil furnace. No cold-air return ducts, just crawlspace. The crawlspace looks quite dirty, and ...

To fully understand how to install a high-velocity HVAC system, one must know what it is and what it does. Basically, it is a small duct, high-velocity airflow, heating and cooling system designed to ...

HOUSTON — RectorSeal LLC, a manufacturer of HVACR and plumbing accessories and a wholly owned subsidiary of CSW Industrials Inc., introduced a trio of patented and UL®-recognized SSP Series ...