The Planted Tank Forum - View Single Post - Co2 electric solenoid getting hot
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post #6 of (permalink) Old 06-26-2020, 09:09 AM
Algae Grower
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Join Date: Apr 2020
Posts: 24
Had the same issue. It got too hot to touch. So I added a fan and heat sink. Now it runs cool.

heat sinks $6
25mm fan $5
3ft usb $5

usb fan and solenoid turn on at the same time. on the background, you can see a travel adapter with usb port plugged to kasa smart strip.
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