Its winter where I live and winter means cold. Currently its below freezing outside. My offgrid heating is limited to the point I have to sometimes layer up to be comfortable.
I discovered a technique that helps me out a lot this season. A 12v car blanket wraped around your shoulders like a poncho and then put a heavy coat layer. Its a really effective way to insulate both yourself and the blanket.
You might be wondering why a 12v blanket instead of a house electric blanket. For offgrid power a 12v blanket is much easier on limited battery systems. Also, 12v blankets dont have 8 hour safety shutoffs they stay on forever.
In the picture is my polar grade Baffin booties most comfortable Cold weather slippies you can get I hightly recommend if you get cold feet.
The only other tip I have is good layering. Wool socks, multiple thermal underwear layers, hat and gloves. Each piece of clothing added helps even out the difference. Electric just amplifies h effect and makes it so you don’t need as much.
Put thermally insulated blanketing on your furniture. Wool blankets are good and duvet type puffy blankets are useful. Consider making an insulated hot table.
My 2019’s low voltage system is 12 volt though newer models have moved to higher volts.
There shouldn’t be too much that depends on voltage, I assume the compressor on an EV would be electric but an ICE vehicle will use a belt pulley so you could drive that with a motor of whatever voltage you prefer.
You specifically said pull it from an EV and doubted it ran on 12 v. EV motors are not like ICE engines.
Thanks, I know that, I’m just brainstorming some ideas.