Quote:
Originally Posted by PaulF
After several of the cheapest I could find and after the human heating pads had to be made with regulations requiring they shut off after an hour or two, went with a heat mat that had a thermostat. More expensive but it has lasted four years so far where the cheap-os lasted a max of two before just quitting.
The very best solution was a heating pad made for the waterbed my boys had in the 90s. It has a thermostat but can get so hot it melts the plastic seed trays so care must be taken. It is the heater for my peppers. So long as there is a wooden spacer a couple inches thick it is perfect and is fifteen years in use as a plant mat and counting.
|
I suppose a person could chop out the safety shut off rheostat and put in a regular rheostat.
But without calculations you would end up burning the house down.
Calculations by meaning get one that wont go up to full power like a light dimmer.
A rheostat is a variable resistor use to control higher currant/power than a potentiometer.