Looking a low power solution for an off grid fridge anyone tried this before and know the best way to do it?
Converting Chest Freezer to Fridge?
figarow on 02/05/2020 - 18:56
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If you're willing to trust untested quality of such products… Would also be interesting to find out the strain on motor and parts with constant on/off power cycles.
Fine, buy this one then: https://www.amazon.com.au/Inkbird-Pre-wired-Temperature-Cont…, plenty more where it came from. The point is installation is brain dead, plug it in and you're done.
Plenty of industrial controllers if you want do your own wiring, but I figure @OP doesn't.
strain on motor and parts with constant on/off power cycles
Won't be any more than it's currently doing. Should be less depending on how you set up the hysteresis in the controller.
It's not rocket science.
I got a chest freezer set up to do something similar, runs fine.
The power cycles would be a long time apart, a chest freezer has much better insulation than a fridge, so the compressor will hardly have to run.
I’ve done it, just bought a thermostat from eBay (Fisher and paykel) it was easy just plugged straight in.
I've got one going right now with an inkbird thermostat. Works great. (Mines not off grid though).
Look up "digital thermostat" on eBay. People have been doing this for a long time for home brew.
Good links here:
https://mtbest.net/freezer-to-fridge-thermostat.html (see the more details paper)
And here:
https://www.abdallahhouse.com/2013/04/the-super-fridge-uprig…
Took 3 seconds: https://cdn.shopify.com/s/files/1/0150/2930/files/Freezer_to…