pumped hot water supply

[BigHammo]

I have a conventional boiler and I have recently had an extension to my house, extending the kitchen and bathhroom. The water pressure for the hot water has dropped significantly. My plumber has recommended pumping the hot water supply.

Is their any alternatives?

Could I put a pressurised hot water tank in? or something else?

The boiler is new so I don't want to replace that.

 

[Gasguru]

I assume you have the cold taps off the mains but it is preferable to have equal pressure for hot and cold in the bathroom.

Extending the pipe runs should not have too much effect on the hot pressure (unless you have restrictive speedfit fittings, restrictive isolating valves or reduced bore flexible tap connectors).

Installing quarter turn taps not suitable for low pressure supplies will though.

Have you changed the taps from traditional washer type to ceramic quarter turn?

A pump on the hot (£200 - £400) would boost pressure but is a noisy option.


An unvented cylinder (pressurised hot) is expensive (£1000 plus) and is only suitable if the mains pressure and supply pipe is suitable and shower valve etc are suitable.