Fischer Energy Consumption Test Results

Fischer Future Heat Storage Heater

Tested by BSRIA LTD (Formerly the Building Services Research & Information Association Ltd)

Find out more about Fischer electric storage heater running costs

14.05 kWh over 16 hours = 0.87 kW per hour

Energy use: 0.87 kW per hour

Product Tested

Fischer Storage Heater, of nominal 2.2k! capacity, with dimensions 1300mm x 610mm x 110mm.

Test Information

The test was requested by Fischer Future Heat UK and was conducted during July 2013. The wireless receiver was replaced with an updated version on the radiator body by a representative of Fischer Future Heat UK before the tests were conducted.

The objective of the test was to determine the total heat input over a 24 hour period into the Fischer Storage Heater, while measuring the room temperature at various heights in the centre of the room, while providing cooling loads to simulate outside temperature.  Maintaining an indoor room temperature at 21˚C for 16 hours and a night time temperature of 16˚C for 8 hours.  With a minimum outside temperature -1˚C and a maximum outside temperature of 10˚C.

Our wireless thermostats can provide a 42% reduction in energy per hour.

The heater tested had a wireless receiver on the side at low level and a thermostat transmitter/sensor on the opposite wall. It consisted of an electrical heater within a fireclay structure, encased in a steel fluted (finned) case.


The total power input to the Fischer Storage Heater during the 16 hour test period was 14.05kWh; therefore the Fischer Heater uses 14.05kWh over 16 hours = 0.87 kW per hour

Test results from experiments to establish running costs of storage heaters and energy consumption.

Fischer’s Wireless Thermostat

Low Energy Consumption Using Wireless Climate Control


It also offers a better control of the heat output based on room temperature control, bringing in even more potential savings by eliminating wastage, especially during the spring and autumn months. The level of comfort in each room is vastly improved by maintaining an even temperature during the day and night which is something that the old night storage heaters fail to achieve. Improved comfort and lower bills thanks to the low Fischer electric storage heater running costs.

Unlike other heaters we do not measure the temperature at the radiator but instead our wireless thermostats measure the temperature of a room away from the radiator, giving you a better heating control and ensuring you feel the warmth everywhere in the room.


Fischer will only use 14.05kW to heat your room for 16 hours when the outside temperate is -1˚C. A night storage heater requires more than 20kW throughout the night to produce enough heat to achieve the same room temperature.

Test results of Instantaneous power consumption of heaters.

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“You can control the temperature and how long they are on for. Our electricity bills have gone down considerably.”
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Fischer Energy Saving Zone

Time Control Vs. Temperature Control

Improve Fischer Electric Storage Heater Running Costs

Heating from cold will always cost you more, not only because it takes longer but because you have more to heat up. When you turn your heating completely off, you allow the fabric of the property to cool down. Consequently when you turn the heating on in the morning, the heat is first absorbed by the fabric and then by the air. Keeping your heating on a background temperature (as opposed to switching it off) will avoid such issues and keep your consumption to a minimum.

The below flow chart shows how Fischer German heaters temperature controlled thermostat helps reduce energy consumption when applying the above principle. As displayed, the heater does not have to lift from a lowered temperature, therefore reducing the amount of time spent consuming from the electricity. Following this method will improve your Fischer electric storage heater running costs.

An energy saving chart demonstrating how Electric storage running costs can be improved.
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Patented 40mm Clay Core

Exclusive to Fischer storage heaters

Customer Reviews

Fischer are rated 9.3 out of 10

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Fischer Future Heat Heaters

As standard all Fischer heaters come with:

High Quality German Engineering

All Fischer Heaters are manufactured by our Master Craftsmen in Germany.

Controllable Heating System

Set each room to the temperature you want with our individual wireless thermostats.

Slimline, Low Input Smart Heaters

Run on as little as 1.9kW PER HOUR.

Exclusive 40mm Clay Core

Patented and designed with comfort and efficiency in mind.

Complete Heating Guarantee

If our heater does not heat your room to 21°C we’ll replace it free of charge. This Guarantee is valid for 12 months from date of order.

10yr Guarantee Manufacture Direct

Enjoy peace of mind with our 10 year manufacturers Guarantee.

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