R Scott

What about an electric bear fence?

Hmm. At my old place it would grow in the cracks in the concrete, or a spoonful of sand on top of the concrete, so I don’t know if pH matters that much.

Definitely sleeve it.  PVC electrical conduit or PEX water pipe is what I usually see.

Avoid fittings at all costs. This is part of why conduit or pex are used, they have sweeping bends that allow flexible line to make a 90 bend without a fitting.

Make sure you use a large enough pipe. Propane is under really low pressure and long runs will have significant loss.

For reference, the current sweet spot for commercial pastured organic flocks is 20,000. And they make as much out more on the manure as the eggs, too.

Not my money, but if I were in that situation I’d probably do the gasifier boiler mounted in a small metal building. One end would be a small boiler room with rock wool insulation (fire and rodent resistant) and a bigger wood shed area on the other end. Big door in between that will fit a pallet jack so you can roll a tote of wood in at a time.  

Definitely NOT an outdoor boiler, you are 1000% right on that choice.

A rmh is more efficient for a simple space, but retrofitting into a house not designed for wood heat can be suboptimal.

I have fairly thick hair (thick enough a haircut would change my hat size back when I kept it short). I have to be extremely picky and brand loyal about my hair ties. Same style in a different brand just don’t work.

A couple issues to think about:

Prefab panels need PERFECT slab/foundation as you have no adjustment to square the building or adjust the size of the wall by a half inch like you can with studs or block.

Concrete prefabs are HEAVY. Even a shed wall is heavier than homeowner rental equipment can safely handle.

Freezing wins for ease, nutrition, and taste. BUT… freezers are expensive and finicky and rely on reliable power.

So if I had to pick one, it would be canning but include lacto fermented

Erv energy recovery ventilator.

Three days at -20F at hot tub temp is a stretch.  But you can should stay above freezing and not need to fire it for that long.

Build it like the big octagon tubs with a bench around the outside and deeper in the middle. You can leave one side full depth with a backrest for the deep soak. The bench is the stratification chamber.

Need to have a really good insulated lid. Need to have a little bit of mass between the Strat chamber and the tub so the water doesn’t suck the heat TOO fast.

If you search YouTube for cowboy hot tub you can find uninsulated J tube rocket sunk into cattle tanks. I had one years ago, but used it as a cattle tank, it was the cheapest deicer I could build. It was a 55 gallon barrel pocket rocket design. I could get a 650 gallon tank from iced over to simmering in an hour at 5f if there wasn’t any wind.