Hi, I'm new to your forum and need some help. I'm fairly handy and I'm looking to build a simple thermal switch that I can control a light bulb with to keep my swimming pool pump from freezing. the pump is covered in a plywood box, so I'm thinking I can plug in a utility light that is comes on when the temperature drops to freezing, then shuts off when it warms up. I have an exterior outlet I can plug into, but not sure how to build a switch, or if I can buy one somewhere.
Any help would is appreciated.
Any help would is appreciated.