Do I Need a Shower Pump

If the flow is equal between the hot and cold, you should be able to install a shower. If – as in most cases with an unvented system – the hot flow is much lower than the cold, then you’ll most likely need a shower pump.

Do I need a shower pump if I have a combi boiler?

Combi boilers are incompatible with boiler pumps, which means that power showers cannot be installed with a combi boiler system. Electric showers can, however, help improve the water pressure in a shower slightly.

Does a shower pump work?

Shower pumps dramatically increase the amount of water used and most household water tanks will cope with the demand. … This means they effectively pump two separate water supplies -the hot and the cold. Both are fed from the tank in the loft. Never attempt to install a shower pump on mains pressured water.