Dimming vs Pulse Proportional?

Picked up a new thermostat for use with our Animal Plastics rack that uses 4" heat tape. Is one mode better than the other for this as it can do either or?

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Originally Posted by Firebird

Picked up a new thermostat for use with our Animal Plastics rack that uses 4" heat tape. Is one mode better than the other for this as it can do either or?

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In my experience, Pulse is better for heating mats& tape and on/off is better for heating bulbs & panels.


Also, on/off can be better if your room is cold and has the possibility of sudden temperature drops. For example, if my room suddenly drops to 59 degrees, I want my heating element to turn on at 100% power, not the 29% power that was necessary a few minutes ago when my room was nearly 70 degrees.

Dimming is literally turning down the juice to a fixed constant level. Pulse purportional is rapid on and off cycle to replicate dimming. Very similar to LED tech which can't be dimmed because they need constant flow of power to dim LED they flash, slower or faster depending on desired brightness. Our eyes obviously can't see the flashing its too quick. Certain things like lamps can't be dimmed so you would use pulse proportional to effectively put out less heat. It gets down to specifically what heating source you are using and what it can or can't handle.

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