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Energy combi boiler

FREE 7 year guarantee out of the box

  • Rear flue option
  • FREE 7 year guarantee out of the box with option to extend*
  • High quality, automotive grade, aluminium heat exchanger
  • High efficiency, modulating Grundfos pump
  • ErP A rated for efficiency - helping you to lower your energy bills

The Energy combi boiler comes with a great range of outputs, attractive modern design, bright easy to use interface and a choice of controls. Energy is a light and compact boiler with a choice of rear or top flue making it easy to install in any situation. The automotive grade aluminium heat exchanger has large waterways making it perfect for retrofit jobs.

Energy just requires simple water flush cleaning for the heat exchanger which means lower costs and no special cleaning tools. The patented 4 sided cooling reduces the stress on the heat exchanger which means longer term reliability for your customers. Energy is supported by UK wide spare parts availability.

Work with Plumbing Toolbox for an easier way to install

Club Energy members can use our industry leading Plumbing Toolbox app to make their installations even easier. They can complete the registration, guarantee, Gas Safe notification and Benchmark on the go saving a lot of time. Club Energy members are also eligible for rewards on their boilers and can offer their customers up to 15 years of guarantee. Find out more about Club Energy here.

*When registered through Club Energy

Features & benefits

  • Quiet operation - "Quiet Mark" approved thanks to its ultra quiet operation (excludes 35kW model).
  • Wide product range - An Energy for virtually any installation.
  • Top and rear flue options - Offers flexibility to fit most install situations and is perfect for retrofit.
  • High quality automotive grade aluminium heat exchanger - Designed to last longer, be easy to maintain, is super quiet and reduces customers’ energy bills.
  • Cupboard fit - Small footprint boiler range that offers the choice to install in more locations, including a kitchen cupboard.
  • Modern bright LCD display - Excellent clarity of boiler information, making it easy to change and confirm settings in dimly lit areas.
  • High efficiency modulating Grundfos pump - Lower running costs as the pump adapts to actual heating and hot water demand.



Energy combi boiler rangeUnit25kW30kW35kW
Article number 001001565200100156530010015654
Gas Council number 47-019-2407-019-2547-019-26
Boiler dimensions (H x W x D)mm700 x 390 x 280700 x 390 x 280700 x 390
x 280
Nominal heat output range at 50/30˚C (Condensing mode)kW5.3 - 19.16.3 - 26.57.5 - 26.7
Nominal heat output range at 80/60˚C (Non condensing mode)kW5 - 18.36.1 - 25.47.2 - 25.6
Domestic Hot Water
Lowest water pressure to operate boilerbar0.20.20.2
Domestic hot water flow rate (at DT = Δ30K)l/min12.114.216.5
Heat exchanger material AluminiumAluminiumAluminium
Boiler lift weight (Dry boiler)kg323333
ErP efficiency%939393
ErP decibel rating (sound power)dBa495152
PCDB seasonal efficiency%
Fluing Options
Maximum horizontal flue length 60/100m101010
Maximum vertical flue length 60/100m101010

For full specification, please download here (3065 kB).

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Alternative products

Alternative products

Ultimate₃ combi boiler

  • Leading combi boiler offering great performance
  • FREE 10 year guarantee when registered on Club Energy*
  • £15 reward when registered through Club Energy
  • Available in 30kW and 35kW models