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Heat pumps move energy from and energy source e.g. air, ground water (hence they are called :air source, ground source) to a sink.

The sink is the emitter system within a home e.g. radiators, underfloor heating (UFH) and fan coils.

Engineers, Installers, designers and the occupants of a home rely on radiators having accurate power output data. Unfortuanlty, it looks like their is a big problem in the radiator industry: the published power outputs are being over stated.

This has huge consequences for heat pump systems which rely on designers designing a heat pump system which can operate at the lowest possible design temperature.

Higher flow temperature to radiators requires the heat pump's compressor to work harder an use more electricity, resulting in more demand on the grid and higher fuel bills for the customer.

Rob Nezard from UK Radiators has spotted a problem across the whole of the radiator supply chain and created a video to prove this. Nathan went to visit Rob (watch on youtube) to discuss the problem 

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