>>925222>Would this cost me out of the fucking ass in electrical bills?I have a heated greenhouse and the power usage is lower than my computer's power usage.
But I live in the south US so our temps don't dip far below 32F much. You should keep an eye on your electric usage.
My heater keeps the plants alive, but doesn't really support production of fruits during the winter.
Side note- they make power outlets that power on or off depending on the temperature. Don't buy the cheap preset temp devices, buy the adjustable one with an LED display.