Magnetic radiator heat saver

Heat reflecting panels to reduce radiator heat loss through walls.

Climate Change Mitigation Retrofit

Problem Addressed

UKGBC’s Whole Life Carbon Roadmap found that the single largest contributor of carbon emissions in from the built environment are homes. Upgrades which improve the energy efficiency of the UK’s housing stock is urgently needed to reduce emissions.

Solution Overview

Warmroom is a heat saving product designed by Anchor Magnets to reduce heat loss through walls by reflecting heat from water filled steel radiators back into a room. Their magnetic, reflective panels easily connect to the back of a radiator to provide a cost-effective way to maximise the valuable energy used to heat a space. Tests conducted by Sheffield University under the Government Funded Solutions for Business Innovation Voucher Scheme have shown that Warmroom can reduce heat loss through walls by up to 60%, helping users save money and energy.

Installation is quick and easy, as the panels can simply be cut to size, slid vertically down the back of the radiator and pressed into place. There is no need to remove radiators, and the panels remain hidden and begin working immediately. Warmroom is made of a high emissivity foil with a flexible magnetic sheet allowing it to magnetically hold on to steel radiators. The reflector inhibits the transfer of heat, reducing the amount of heat entering the wall behind a radiator and instead reflecting it back into the room. Because of this, users may not need heating on for as long or turned up as high. Warmroom can be used in conjunction with other solutions such as draught proofing or insulation to further reduce energy consumption. One package of 6 warmroom magnetic sheets (each suitable for a radiator of 1200x600mm) is priced at £18.17 + postage.

Company name

Anchor Magnets

UK availability

Yes

Date added

Jun, 2024

Case Study

The University of Sheffield tested the use of 0.5mm shiny magnetic sheets behind radiators. The results showed a significant reduction in heat loss through walls with an increase in useful heat output of 3% for the same energy input. The study estimated that the solution could save on average at least 30W for a 600x600mm radiator. Heat loss through the wall could be reduced by up to 60% due to the heat transfer by radiation from the radiator to the wall reducing by more than three quarters.

Up to 60 %

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