Boosting
Combi Boilers
Combi Boilers
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
Boost
Only
pump approved for use with combination boilers
Fit
Simply
Uses
Boost
Only
pump approved for use with combination boilers
Fit
Simply
Uses
How Does It Work?
Double Boost the Whole House
Simply install a SP21S double boost on the cold-water feed to a combination boiler. This will boost the flow to every tap, bath or shower in the home, but the benefit will be lower if more than one tap or shower is used at any one time.
A double boost before the boiler can stop it shutting down because it increases the pressure but it is only suitable for keeping one shower or tap running at any one time. Great for a small home but for a large house with multiple users you will need up to 3 pump sets
Single Boost an Individual Shower or Tap (Protected Flow)
If you have poor performance of an individual outlet, fit a single SP2B on the hot feed or better still a pump on the hot and cold feeds to the particular tap or shower. It will not only boost pressure but maintain pressur and flow when other taps, toilets or showers are used. Unlike the whole house boost you can protect and boost up to 3 individual taps and showers when you put our pumps on the hot side of the Combi Boiler.
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 pumps can be legally fitted to the incoming water supply to protect against this happening and they are fully compliant with UK Water Bylaws
The Shower Power Booster pump is designed to be quiet, energy efficient and provide the optimum boost for most applications. A single pump will provide a 0.2-0.4 bar boost which is all you should need for an electric shower, but we recommend a SP21S double boost upstream of a Combi Boiler to protect a single tap or shower.
The Shower Power Booster pump which does not cut out due to low mains pressure will protect multiple showers if each shower is protected with its own pump on the hot side of the Combi.
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