to power a single 1000? no problem. 1st kill the breaker & wire a standard 110 outlet in place of the thermostat. leave off the wires going to the heater. next open the breakerbox & you will see a black wire going to 1 side of the breaker, a white wire to the other, & the bare copper going to a terminal strip. depending on the age of the box, you may have a seperate terminal strip for the white wires or they may be on the same strip as the ground wires. move the white to the appropiate strip. since this is temporary, you can use 1 side of the 220 breaker. (or take the breaker to electric store & buy proper 110 breaker)
when you set up the controller,you will need to run a new wire back to the panel.