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Cake day: December 4th, 2024

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  • It you’re using a relay to turn it on and off then just put like a 90F furnace high limit switch on the air inlet side of the heater and run the control signal for the relay through that high limit switch. That way if the air going into the space heater gets too hot from the room getting too hot or the area around the heater gets too hot from the fan failing, it’ll shut off. Also furnace safeties are cheap, easy to find, and already designed to fail open circuit for safety.



  • I’m not sure where you’re getting your air duster but none of the stuff I’ve seen is R-410a. It’s usually R-134a or R-152a. R-410a would be a much higher pressure. Trying to run an R-410a system on either of those refrigerants would not work out well.

    Also even if they are full of whatever refrigerant you need, they aren’t even close to pure enough to use in an AC system. I’m also not sure how you’d get it out of the can and into the system. You would need to make some sort of custom piercing tap or adapter for the can.