I am looking at making a low volt DC heater, 12V or less. My heater will be used to keep water from freezing using a tip-up, ice fishing. i am looking at resistive heating currrently. I have to make 4 such items so they design will have to be cheap. I am hoping to use rechargeable batteries to power the element , the less the better. i will have a 1.5 inch piece of high-density foam over top of my ice hole. I am thinking of incorporating the heating element on the bottom of the foam. It doesnt have to contact the water, but it can if needed. The exterior temps here can get -15F but with the foam insulating the hole water from the exterior winds i cant see this being terribly bad. I have never made a resistive element before and i am knowledgeable in ac/dc, but i want to build my heating element as cheap as i can.
I have attached a basic picture of my thoughts.
Any ideas or help would be greatly appreciated.
I have attached a basic picture of my thoughts.
Any ideas or help would be greatly appreciated.
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