Heat exchanger to come, Göttingen

the friend i am visiting here is planning to build a heat storage tank.
the idea is to use a collector consisting of 15m of hose per square meter to collect solar heat. a total of 6 square meters of collector area is to be created from old windows and black metal plates. the hoses should be filled with coolant, which then transports the heat via insulated hoses and releases it again in two water-filled 1000l canisters - a heat exchanger, in other words. these canisters should be well insulated and then, if necessary, release the stored heat to a second circuit, which also consists of hoses filled with coolant and heats a radiator - a second heat exchanger. i'm curious how this will work out.
apart from that, there is already a lot of photovoltaics.Les mer