FlowSmart original

Product Information

How it works

  1. When there is a hot water demand, mains cold water flows into the GasSaver, where it is pre-heated using heat reclaimed from boiler flue gases.
  2. It then passes through the thermal store's copper coil heat exchanger where it is heated further by surrounding hot water from the primary system (also known as the central heating system)
  3. The water then passes through a blending valve, where it is controlled to an optimum 30ºC before entering the boiler.
  4. Due to the mains water being pre-heated, the boiler's workload is significantly reduced.


Product Video

Detailed Information

For homes with above average hot water demands, look no further than FlowSmart, which at last enables even large households to enjoy the energy efficiency benefits of the combination boiler.


  • 5 year guarantee
  • Ideal for households with above average hot water demands
  • Delivers hot water for long periods
  • High flow rate unaffected by demand
  • Simple installation
  • Space efficient
  • Low voltage PV immersion kit available

FlowSmart incorporates an InTec 34C combination boiler, a GasSaver flue gas heat recovery unit and a 50 litre thermal store.

All components can be sited in a space smaller than the average airing cupboard and there is no need for any tanks in the loft – a useful factor when considering a loft conversion.

In addition, Alpha now supplies a low voltage PV (photovoltaic) immersion heater as an additional renewable energy source that can be added to the FlowSmart system, to further increase energy savings and reduce CO2 emissions.

Boiler Issues?

Having problems with your boiler? We have an online tool to help you find out what the flashing lights on your boiler are trying to tell you!

Products in this range

Wall-hung FlowSmart

Wall-hung FlowSmart

A combined wall-hung version of FlowSmart is now available whereby an optional cylinder can be added to the InTec 40GS boiler.

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