DIY Walk in cooler controller, Coolbot Inkbird alternative. Commercial version. wiring. low cost!

[@clinte9897]

What size units do you run? I have an 8000btu unit in a 7x7x4 building and it’s seems to do pretty good so far but can’t help to think a 10000 would do better

[@scottharrison1489]

Depending on what temp you are attempting to obtain I would suggest a 10-12k minimum. My main goal on my coolers is to run between 32-36 degrees, for meat storage. Check out the STC3008 video for a great controller as well

[@maddog45auto66]

Why don't you use two ink birds At $30.00 Each.

[@scottharrison1489]

@@maddog45auto66 I have, the inkbird relays dont hold up under constant use on larger A/C units. Maybe something smaller but have been bitten more that once by them.