Stretch PrusaAir 10 inch print
by REOCON, published
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Right, if we did not overheat the resister tolerance than the heat would not bleed off. tot he brass block So 24 watt coming off 2- 10 watt resisters is do-able.
As I suspected, you're not running a 10W heater. You're running a 24W heater. W = V * A, so if you have 2A on a 12V source, that's 24W. The wattage rating on the resistor doesn't tell you how many watts you'll get through it, it tells you how much wattage it is designed to dissipate as heat. You are running the resistors at 2.4x their rating, and if not for the aluminum block to carry the heat away, they would burn out.
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