It's hot enough in there already - especially when working in there.Maybe it's a deliberate thermosyphon to radiate more heat into the airing cupboard when you want to dry some clothes?
You have to leave the door open.
It's hot enough in there already - especially when working in there.Maybe it's a deliberate thermosyphon to radiate more heat into the airing cupboard when you want to dry some clothes?
...and, as mfarrow has said, greater boiler efficiency if the return temp is lower (achieved by lower flow rate).Yes, the only advantage I can think of is less heat loss on the return to the boiler.
Yes, very close. It was purely fortuitous. There was a small cupboard, adjacent to the utility room, vertically below the 1st floor airing cuboard (with cylinder) and, in fact, through the cupboard was about the only sensible route for pipes to/from the cylinder down to the boiler. When we realised how warm the pipes were making the downstairs cupboard, we decided to redfine it as an 'airing cupboard', particularly since it was strategically placed close to washing machine and dryer. In fact, it's not only the pipes to the DHW coil - the CH pipes for upstairs also go through the cupboard.A cunning plan, indeed. I assume the locations are close, not that W2 Towers has an airing cupboard the same size as the little house in my picture.
It's only 'bypassing' the coil in the cylinder - the coil surely provides a path for the pump to push water through?!Bypass pipe is purely that, so if the circuit the pump is feeding closes the pump still has a path to push water round to prevent overheating in the boiler.
Exactly. That's why EFLI posted the question (with a photo), because that's what he believed (and so did I - although I did also try to think of some way-out possibilities asto why someone might have thought it was a good idea!).Then its fitted wrong. ...The set up you have, I have never seen, and don't belive its fitted correctly, cant see any good reason for doing it that way
Indeed. If it's there just as a 'safety' measure (pressure limiter), they usually are - to have a constantly open bypass would presumably be wasteful/innefficient. However, if one were using a bypass for a 'control' measure (e.g. per ScottishGasMan's last post), then it would have a manual control.Most pump bypasses I see have pilot valves on them which only open when the pressure increases above a set threshold.
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