An thoughts on incinerating toilets? They’re like $4k, but that’s cheaper than septic usually and no plumbing. Can run off LP or electricity. A big appeal is that you don’t have to worry about temperatures since they’re waterless. And you can take it with you if you move.
> Heated water: once you have water you quickly realize 10C is not always pleasant to shower in. So for $150 we bought a water heater that heats water by 25+ C as it flows through. It works with a gas cannister since our small electric system is not powerful enough to heat water.
I’ve had good success with an ~40L pot of water on the wood-stove/gas-stove (or sous vide cooler if you have the energy budget) and an immersible battery pump with shower head:
https://m.aliexpress.com/item/1005003145415630.html
Works well for dishes too.
Since we don’t have running water in winter, these are great on top of a large bottle to fill a cup or wash hands hands-free: