i've got myself two commercial quantum heat pump hot water systems holding 340L of hot water each, and 7 hydronic heater panels... i've read a bit around the internet about using potable house hot water and running it through the hydronic panels, as well as using that same hot water routing system in the kitchen and bathrooms etc. for general hot water use.
Can anyone give me details of fittings and plumbing that i require to accomplish this? ideally a diagram with labelled parts like 'expansion tank' and 'manifold' - i'm getting a bit confused as to how the water circulates back into the hot water systems and somehow automatically refills from the cold tap if some hot water is used in the shower for instance... there must be a controller of some sort, and is this passive or active? thanks in advance, i'm sure i'm not the only one looking for this kind of system.