Mains pressure vs pumped shower

[Dave Plowman (News)]

An example of dribble doing a bit of spell checking for once.

[Doctor Drivel]

Oh I forgot you say it, auch de noo.

[David Hansen]

On Mon, 07 Aug 2006 16:41:47 GMT someone who may be "Jim" wrote this:-

That doesn't mean an unvented (mains pressure) hot water cylinder is necessary. A conventional vented cylinder could still be used. Alternatively a thermal store could be used, which would provide mains pressure hot water without the need for regular inspections. The cost of these inspections is considerable over several decades and is likely to go up. A thermal store has a high initial cost, but then just sits there.

A thermal store could also accept heat input from other sources; solar panels, heat pumps and wood burning stoves being some examples of such sources. Sole reliance on gas is looking fairly dodgy, despite the new import facilities that will be ready in a year or so.

Are they grouped together vertically and horizontally, to minimise dead legs? If so then, if there is one source of hot water, it is best located near the tap most in use (usually that in the kitchen). This can run into difficulties with the Domestic Authorities though. Unless the house is large hot water storage in, near, or above the bathroom is not too bad compared with the ideal. As the house gets larger storage at the centre of groups of outlets becomes sensible.

Remote sinks, for example in a downstairs toilet, are often best served by an electric under-sink heater.

Certainly a good reason for storing hot water, as in a cylinder, or storing primary water to make lots of hot water rapidly, as in a thermal store.

Have you tried various shower heads?

More quickly, though the amount of water wasted will be the same. Are the hot water pipes lagged?

The space they take is generally little, a few cases. If they are blocking access to other parts of the loft could they be moved?

[Doctor Drivel]

Thermal stores are about the same price as an unvented cylinder. It also provides for free CH and boiler buffering for free.