We have a recently installed unvented DHW system installed in an inherited bungalow that we will soon be moving into. That system has two expansion vessels, one for the CH and one for the DHW. OK, so far so good, I get that. But does that mean that the incoming cold water mains supply is also connected indirectly to the DHW expansion vessel, via the DHW tank, albeit through a pressure reducer?
- posted
6 years ago