Plumber finished installing a Joule 250ltr horizontal cylinder in my eves space. Water is hot and it appears to be working.
I noticed while I was insulating the pipe work that the return is 10 degrees hotter than the flow (water 2 way valve oil closed at the moment and I left 2 small thermometers on each pipe over night)
I would assume the flow should be hotter? or would that only be the case when 2 port valve opens and boiler fires?
Can flow and return only be checked when water heating is being demanded and then check pipe temperatures?
I noticed while I was insulating the pipe work that the return is 10 degrees hotter than the flow (water 2 way valve oil closed at the moment and I left 2 small thermometers on each pipe over night)
I would assume the flow should be hotter? or would that only be the case when 2 port valve opens and boiler fires?
Can flow and return only be checked when water heating is being demanded and then check pipe temperatures?