Greenhouse: DeepRoots picture (Propane heater)
In reply to: Propane heater
radiant heaters are like those ones with the lil pads.
no electricity required, just a pilot light.
some types can be hooked up to a thermostat.
you can buy them around here for $200 new, or once in awhile find a few for $20 used of course but usable.
We heated our whole house one winter with 100 gallons of propane.