In article . net,
"Lew Hodgett" wrote:

Toller in another post has pointed you in the right direction; however,
there is even a simpler way.

Install a DPDT non fused, 250V, 30Amp, disconnect switch that you manually
switch.

Leave the switch in the air compressor position.

When you get cold, switch to the heater.

When things warm up, switch back to the air compressor.

Low cost, simple and reliable.

I agree that this is by far the simplest(best) solution if I didn't
forget to turn the heat back on before locking up for the night.
My solid surface sheets need a minimum temp of 60F in order for the
adhesive to work... to wait for that in the morning is a PITA....or so
I'm told...G