How does a heat pump work?
What is a heat pump? How does it work? These are very common questions, and answered very simply in this short 3 minute video, brought to you from Kensa Heat Pumps.
Please click the button below to view the video. With over 230,000 total views on YouTube so far, our ‘How a ground source heat pump works’ videos are an internet hit!
Natures underfloor heating
Ground source heat pumps are extremely energy efficient, with every unit of electricity used (to drive the pump and compressor), producing between 3 and 4 units of heat. This means heating costs are effectively quartered.
Due to their high efficiencies, CO2 emissions are significantly lower than traditional fossil fuelled systems (up to 43% lower than gas).
Cut energy bills by a quarter
For each kilowatt consumed by the heat pump, 4 kilowatts of energy is generated.
1kW of electricity = 4kW of heat
Effectively meaning the cost per kilowatt hour is quartered.
This is known and the coefficient of performance (COP).
The lower the flow temperature required in your heating distribution system, the less work your ground source heat pump will need to make, therefore making it even more efficient, and possibly even reducing the size and cost of pump required.
To achieve as low flow temperatures as possible, insulation is the first place to look.
better insulation = lower flow temperature = less work & more efficient heat pump
The science part
The condenser delivers water hot enough to serve the space heating system and, if required, the property’s hot water needs. Having transferred its heat, the refrigerant gas reverts to a liquid.
This liquid is then passed through an expansion valve at the end of the cycle to reduce its pressure and temperature, ready to commence the cycle all over again.