For air that circulates within the house, I use the terms supply and return (crazy as it might sound, the supply leaves the blower and might be the "exhaust"; the return goes back into the blower and so might be an "intake").

The only reason theyre selling that cheap is because there are *millions* of them in circulation.

Open concept layouts with minimal to no carpet allow for better are circulation and are a natural fit for ductless systems.

The fin tube heating does not have a return pipe, all radiators tap off the supply line thus when getting to the far side of the house, there is no hot water left as well as no circulation of the water through the radiators in the first place.

The heating is provided by circulating hot water and 2 fans that push the hot air from the radiator inside the room.

(Francis Bacon)All the perplexities, confusions, and distresses in America arise, not from defects in their constitution or confederation, nor from want of honor or virtue, as much from downright ignorance of the nature of coin, credit, and circulation.

Use a fan to circulate air, and open a window for a little bit each day.

Because they work better, there's less air circulation which can damage the blower and cause overheating in the heat exchanger.Do you have carbon monoxide detectors?

This includes, but is not limited to, disconnecting all garden hoses from outdoor spigots and draining such prior to freezing weather, opening cabinets under fixtures that are adjacent to outside walls to allow warm air circulation near water and waste pipes, and keeping the unit at no less than 50 degrees.

He explains the cause of the crash, which we should all know about anyway, but he claims that the the only reason the market has rebounded is because of QE (Quantitative Easing) aka Federal Reserve printing money and putting it back into circulation.