The Electrorad Thermastore HHR is a High Heat Retention (HHR) storage heater, recognised by BRE on the SAP product database of HHR storage heaters.

Up to 40% lower running costs than electric radiators and up to 20% lower running costs than standard storage heaters ( Calculated using SAP 2012 )


High heat retention storage heater with direct boost element
Steel construction with powder coated finish RAL9016
Heat storage core of ceramic blocks
Stainless steel heating elements
Fan assisted with quiet operation
Feet included
Tested in accordance with BS EN 60531:2000 Clause 10 for high heat retention
7 hour charge.
Thermostat controlled room temperature
Thermal safety switches
Single cable input for charging and direct element boost
Large format, high resolution TFT screen with black & white or colour option
Charge indicator shows current charge status
Wireless RF electronics for linking to USB hub for app control
Simple and intuitive programming
Easy use and weekly program operating modes.
Frost Protection, Eco and Comfort temperatures.
Boost function.
Open window detection function.
Early activation function learns when the heater should switch on for best energy saving
Intelligent electronic charge management based on core temperature and ambient temperature.
Can use one or two charge periods
Keypad lock.
Energy consumption and room temperature records.
Geolocation function to automatically reduce temperature when away from home
Temperature sensor with 0.1 ºC precision.
Optional control through App.
Optional voice control with Amazon Alexa or Google home

Multilink USB WiFi hub:

Allows you to connect up to 31 heaters on the same network.
Maximum distance 200m in open air, 30m with 2-3 walls indoors.
The heaters form a ring subnet as each emitter acts as a signal repeater.
A signal can be retransmitted up to 4 times therefore we achieve greater distances.

Model Storage Output Charging 7hrs Boost element output No. of storage bricks width x height x depth Weight Heat retention
HHR165 1650 watts 11.9 kWh 625 watts 12 715 x 743 x 185 93.5kg 50.5%
HHR255 2550 watts 17.9 kWh 950 watts 18 925 x 743 x 185 130.00kg 49.2%
HHR340 3400 watts 23.8 kWh 1275 watts 24 1035 x 743 x 185 170.00kg 51.6%

Running cost claims verification:

Running Cost Report