imersion heater

[thec]

i have just installed a new bath but the hot water is running very slow i always had problems with the pressure.

the imersion tank is on the same level as the bath is it possible to add a pump to the tank

any info will be great thanks

chris

 

[stem]

The level of the hot water cylinder is not really the issue, It's the height of the cold water storage cistern that feeds it that gives the pressure.

In answer to your question, you can fit a booster pump to the hot water supply to your bath, or if it is possible to raise the cold water storage cistern a few feet that would also improve the flow.

 

[TicklyT]

Are your new bath taps specified to match your hot water system?

A lot of the brassware now on sale is designed for higher water pressures typical of 'sealed' systems, usually higher than 1 Bar, where a typical gravity system delivers 0.2 - 0.5Bar.

The pressure in a gravity system is controlled by the position of the cold storage tank. The position of the hot cylinder is usually immaterial. The pressure is roughly the vertical distance from the cold tank to the tap in metres divided by 10.

The hot pressure can be boosted by a pump, but it is often simpler, quieter and more cost-effective to replace the taps with ones designed for the available water pressure.

 

[thec]

The tank is directly feed from the main cold not a cold water tank

can any one recommend a pump

 

[Nige F]

Stuart - Turner make good quality pumps .

 

[TicklyT]

Is it a sealed system like

or an open vented combination cylinder, like

?

Combination cylinders incorporate a gravity cold feed cistern directly above the hot cylinder, so they offer very little gravity feed pressure.
Pumping the hot water from a combination cylinder is not usually recommended because of the restricted capacity of the cold storage.

There are also limitations on connecting a pump to a sealed system, which probably already has a higher outlet pressure than most pumps are built for.

If you have a sealed system that does not deliver it's design output flow and pressure, you should investigate the cause of the failure.
Sealed systems usually require annual maintenance checks by an appropriately qualified plumber to ensure it's continued safety.

 

[thec]

its like the open (green) one

 

[Nige F]

Stuart - Turner make good quality pumps .

I rest my case

 

[thec]

can you recomend a stuart-turner model?