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Energy 35 Store combi boiler

35kW combi boiler

  • ErP A rated for efficiency - helping to lower energy bills
  • Provides high performance heating and instant, sustained hot water
  • System contains two highly insulated 21 litre integrated tanks
  • Fast re-generation times of less than 5 minutes
  • FREE 7 year guarantee out of the box with option to extend*

The Energy 35 Store is a fully integrated wall hung boiler, which combines the benefits of both a system and combi boiler in one package. It provides efficient heating and instant, unlimited domestic hot water, making it perfect for larger properties with a high domestic hot water demand.

The two 21 litre insulated tanks, housed inside the unit, provide a short re-heat time of less than 5 minutes and can significantly reduce heat loss. Energy 35 Store avoids the need to put in a hot water cylinder - reducing complexity, installation time and cost.

Features & benefits

  • Energy 35 Store has two highly insulated 21 litre integrated tanks - Provides high performance heating and instant hot water supply to larger properties.
  • High efficiency combi store technology - Offers fast re-generation times of less than 5 minutes for hot water demands and quicker than hot water cylinders.
  • DHW flow rate of 19.7 litres/minute - Rapid delivery to fill a bath quickly providing comfort and convenience.
  • Combined combi with storage tanks in one unit - Avoids the need for a hot water cylinder to free up space and reduces complexity and cost of installation.
  • High efficiency modulating Grundfos pump - Lower running costs as pump adapts to actual heating and hot water demand.
  • LPG compatible - Providing greater siting options for off-grid properties.
  • FREE 7 year guarantee - Free 7 year guarantee straight out of the box with the option to extend

*Glow-worm’s Club Energy installers can offer up to 15 years of guarantee. To register to become a Club Energy installer click here.



Energy combi storage boilerUnits35kW
Article number 0010017338
Gas Council number 47-019-37
Boiler dimensions (H x W x D)mm890 x 470 x 561
Nominal heat output range at 50/30°C (Condensing mode)kW9.3 - 31.5
Nominal heat output range at 80/60°C (Non condensing mode)kW8.5 - 30
Domestic Hot Water
Lowest water pressure to operate boilerbar0.1
Domestic hot water flow rate (at DT = Δ35K)l/min19.7
Heat exchanger material Stainless
Boiler lift weight (Dry boiler)kg67
ErP efficiency (Heating / DHW)%A/A
ErP decibel rating (sound power)dBa51
PCDB seasonal efficiency%89.4
Flueing Options
Maximum horizontal flue length 60/100m10
Maximum vertical flue length 60/100m10

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