I came across something in my travels yesterday which surprised me a bit, and I wondered if others might be able to satisfy my curiosity?
I opened the airing cupboard door, inside was a larger than average HW tank which came up to about my chest (maybe 5ft tall). On the HW tank was a big notice with words to the effect that the HW was supplied at mains pressure.
As it happened I had to shut off the HW supply to work on something in the bathroom, and sure enough this required the rising main to be shut off in the kitchen in order to kill the HW supply.
My experience is obviously limited in this domain, but I've always been used to HW cylinders being fed by gravity from the cold header tank in the loft so it was a bit of a surprise to find one that's being fed directly from the rising main. Usually the rising main goes straight up to the loft to fill the header tank and pretty much everything else (apart from a tap in the kitchen perhaps) is dropped from that tank.
The usual CH/HW piping with divertor valve was in place to the HW cylinder to indirectly heat the HW thru a coil, so I'm pretty sure this HW cylinder isn't being fed directly from a CH boiler.
Is this a usual arrangement which I've managed to miss all these years, or did I trip over a house that has had something special done to it? :)
Just very curious about the piping arrangement in this instance because it seemed odd - I'm not trying to fix a problem with the HW supply.
PoP
Sending email to my published email address isn't guaranteed to reach me.