Aquarium heater.

[blkandrust]

I currently use a temp twister SS coil to cool my lagers during fermentation in the summer. I use a submersible pump to recirculate ice water through the coils and into the cooler. I'm looking for an aquarium heater to heat water in cooler during the winter months. What do you all use and recommend? Thanks in advance.

 

[KeizerBrewr]

https://www.morebeer.com/products/fermwrap-heater.htmlUse that with an inkbird and a blanket.

If that doesn't help
https://www.amazon.com/dp/B07TXN9VS...9Y2xpY2tSZWRpcmVjdCZkb05vdExvZ0NsaWNrPXRydWU=Set it to 80 degrees, use an inkbird in a thermowell and let it pump.

The great thing about the heat wrap is you can keep your brew temperatures right where you want them.