Solar Energy - Parts for solar thermal/hot water system (Enerworks)

[garveynj]

I'm not sure why someone wasted money putting 3 expansion tanks on a system that needs 1 properly sized tank and why is the main heat exchange pipe not insulated what a waste of energy.

[RimstarOrg]

@garveynj One expansion tank is on the water side and two are on the glycol side. The smaller glycol side one comes installed on the integrated Energy Pack system and I suspect he figured it was too small so he added the second larger one. And I agree re the heat exchanger not being insulated, that's also a part of the integrated Energy Pack system but I don't see why some insulation couldn't be packed around it. Re the rest of the piping, I replied to your other comment about that.