[RE-wrenches] Fortress Battery Heater

Hi All; I have a fresh Fortress Evault installation with a Solark inverter.  The batteries are indoors in the center of the house, but the customer is not there full time, so the battery is unfortunately going below freezing.  What are the best options for setting up a heating system for the

Re: [RE-wrenches] Fortress Battery Heater

Pet heater have worked for me, I air gap a sealed heater box under the battery, thermostat inside the top of the battery. It's slow and low power but does the trick Fun times On Wed, Feb 8, 2023, 3:05 PM Ray Walters via RE-wrenches < re-wrenches@lists.re-wrenches.org> wrote: > Hi All; > > I have