Redjard

Lots of huts probably have an ac or heater. This could all be the same device, at which point it’d definitely be easier than running the pipes for water and maintaining pumps and a dedicated tank.
Don’t see a reason you couldn’t have a simple ac window unit that also has a warm water port, which you plug a single cable into going straight to your pannels on the roof.

Edit: And once batteries are more affordable (or if you have a few grand to burn) you can then plug in a battery pack conveniently on the indoors side of your window unit.
The indoors side can just have a few regular outlets you can extension cord around to where you need them.

Modern solar into a modern heat pump is gonna be more efficient than heating water. It’s also more versatile and convenient, cause it maintains that efficiency when you pull power from the grid at night. And of course lets you use the power for other purposes.

In serious, most ways to loose blood and need blood infusions will loose the plastics too, so the donated blood just maintains the concentrations, the samw way it does for the other components.
Everyone has plastics in their blood.

But then if you donate frequently your blood will have lower concentrations due to all the previous donations, so don’t just donate, donate often.

You should to regularly let donate blood to expell the bad humors microplastics.

can make it round so the syrup spreads more evenly from the center.

Oops you made pancakes