How is this for a power system? Solar vs battery balance?

Grit dog wrote:
That's livin on the edge, trusting your heater to keep from needing to Winterize in the Midwest when you're not actively using the camper.
Just sayin.......

I think i'll invest the $149 on this well reviewed temperature monitor... so just in case the heater fails... this will tell me

https://www.amazon.com/gp/product/B01M1OPOZB

and also I could also put a small heater, on low (that has a thermostat) in it as well. I'll have 120v where it is stored, and also wifi for the monitor.

:-)