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Combi Boilers

Combi Boilers

Used in Over 15,000 UK HOMES

DIY FIT in 3-Steps

2-YEAR Manufacturer's Warranty

Used in over 15,000 UK HOMES | DIY FIT in 3-steps | 2-YEAR manufacturer’s warranty

Boost Showers or Taps from a Combination Boiler

The Shower Power Booster is one of the quickest and most effective ways to boost shower pressure or tap flow if you have a combination boiler.



the whole house or a single shower or tap



pump approved for use with combination boilers



before or after boiler -wherever is convenient



plug power supply into conventional socket



just 12 watts of energy

How Does It Work?

Boost the Whole House

Simply install the Shower Power Booster on the cold-water feed into a combination boiler – or the hot feed from it – to boost the flow to every tap, bath or shower in the home.

For particularly low mains water pressure, a second Shower Power Booster can be added inline before the combination boiler. Adding a pump before the boiler can also stop it shutting down when low pressure is detected.

Boost an Individual Shower or Tap

If you’re concerned by poor performance of an individual outlet, it may be most appropriate to fit the Shower Power Booster to the hot water pipe which feeds the particular tap or shower. It will not only boost pressure but maintain it when other taps, toilets or showers are used.

Protecting a Combi Boiler

Combination boilers are fitted with a pressure sensor which turns off the gas supply if cold water pressure falls below 1.0 bar. The Shower Power Booster can be fitted to the incoming water supply to protect against this happening.

The Shower Power Booster is designed to be quiet, energy efficient and provide the optimum boost for most applications. In most cases, a single pump will provide a 0.2-0.4 bar boost which will protect the combi boiler. However, for very low pressure or high demand, a second pump can be fitted for reassurance.

The Shower Power Booster will typically protect flow rates of 6 litres per minute for showers and 8.5 litres per minute for taps.

Ask Alan


My mains water pressure is poor. Will the pump help?

Yes, the Shower Power Booster can be added to the feed to provide a welcome boost for all hot water. If mains pressure rises it will never impede flow either.


How much will the pump cost to run?

The Shower Power Booster gives an optimum boost but consumes just 12 watts. It’s much more efficient than conventional pumps which produce similar results.

Boost Combi Boilers with…

5 Star Reviews