On Mar 4, 11:16*pm, Onetap wrote:
On Sunday, March 4, 2012 9:57:22 PM UTC, Harry Bloomfield wrote:
Wrong! There will always be a natural flow of air because they have
vents top and bottom. The resistor is simply there to reduce
hysteresis.

Why would there be a "natural flow of air" because there are air vents? I know there's ****ing air vents, but the presence of vents does not make the air move. *You need an energy input to move air (or anything else). You need a fan or a heat sourcesink that causes convection. Convection currents in the room will not necessarily cause air movement through the thermostat.