Adding a small heater to a 240v irrigation pump
I have a 3 HP irrigation pump fed by a normal 240v service line from a relay activated by the irrigation controller. The pump uses 2 lines plus a ground. I have one extra conductor line running to the pump station.
Is there a code acceptable way to use that line, and one of the pump lines to add a small heater to keep the pump from freezing, without changing the pump/relay function?
Or, is my only option to plug in the heater or the pump but never both?
Preferably, the new wiring would contain a thermostat so that the heater would only run when needed.
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