I currently have two Honeywell Chronotherm IV digital programmable tstats connected to my zoned forced air heating/cooling system.
After reading some info on this forum, it seems that Honeywells .5 degree of differential may be too restrictive. Ive noticed this during the heating season, when the system blower stays on after the burner shuts off (normal) but then by the time the blower is done cooling off the heat exchanger, the Honeywell senses a .5 degree difference, and turns the burner back on. Depending on how cold it is outside, this could happen occasionally or a lot. I assume this is sort of short-cycling.
My question is, would I be better off switching to a newer/diffrent brand thermostat to help alleviate this issue? I notice that the White Rodgers stats can be set to a 1.6 degree differential, possibly stopping my system from short off-times. Or could I even just try switching the Honeywell to less cycles per hour? (6 is suggested for my forced air heat, but the t-stat supports as low as 3 or 4 I think).