Although with plastic tanks 6-8mm thick, max temp would be 85-90deg C.
Each tank is about $3000 each. so if you don't already have the tanks it may be an expensive operation. But if it doesn't make expectations, at least you will have your own water supply.
Water is cheap (free off the roof) and is very high on the list of liquids with good specific heat figures.
...........oztulesFlinders Island Australia[ Parent ]
Anyway, yes, sounds like you have your seasonal store right to hand! You might be more interested in the summer-cooling possibilities than me too.
Rgds
Damon[ Parent ]
At any rate, it certainly is an interesting crackpot scheme. [ Parent ]