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The workaround is to use a heat exchanger so that you're not drinking the stored water, just transferring heat from it on-demand. They're doing similar things
by __MatrixMan__ 3y ago
The workaround is to use a heat exchanger so that you're not drinking the stored water, just transferring heat from it on-demand.
They're doing similar things at larger scales in Sweden: https://www.bbvaopenmind.com/en/technology/innovation/underground-thermos-to-heat-a-city/ https://www.bbvaopenmind.com/en/technology/innovation/underg...
- crote 3y agoYes, but OP wanted to use it as both heat storage and emergency drinking water supply. If you're using a heat exchanger you'd still need separate tanks for hot water storage and for emergency drinking water - and that's the very thing they were trying to avoid.