Well that worked out well... I used my propane heat last night until bed time. Set the heat pump to come on in 7hrs set to 66F. It did just that, and I awoke to a reasonable 58F in the trailer and batteries at 80%. Then I made coffee, turned on the propane heater, and turned off the heat pump.
Getting a little bit of solar - maybe 300W - enough to cover my loads plus 7.5A to the battery. But even if not, I could probably continue with this routine for up to 4 days without sun.







