Heat Pumps
What is a heat pump?
Heat from the sun is always warming our planet. Heat pumps are an eco-friendly way of absorbing the natural heat and using a small helping of electricity to compress the stored heat into a suitable temperature, keeping your home warm and providing your property with hot water.
How do heat pumps work?
The simple explanation is that heat pumps are a wonderful piece of technology that produce more energy for your home than it uses. Taking the organic heat from the air, the ground or water; heat pumps offer a more effective and efficient way of heating up your home, whilst reducing your heating costs.
The science of heat pumps
Heat pumps work through a cycle of compression and evaporation. There are four stages to the process, which are:
1. Evaporator: Whilst the method of heat transfer is the same, there are three types of heat pumps which are determined by the source of where the heat comes from:
Ground Source – Absorbs heat from the earth
Air Source – Taken from the outside air
Water Source – The air is taken from nearby lakes and ponds
The refrigerant within the heat exchanger, also known as the evaporator, can absorb heat from cold conditions as low as – 20 degrees.
2. Compressor: The evaporator refrigerant is compressed which increases the temperature
3. Condenser (The Second Heat Exchanger) : The refrigerant gas transfers heat into the central heating system, resulting with the refrigerant to go back into a liquid. In the second heat exchanger, the cooler water from the heating system soaks up the heat, which is used for either radiators, underfloor heating, or hot water.
4. Expansion Valve: Within this stage the pressure is decreased, further reducing the temperature before beginning the cycle again.
Air Source Heat Pumps vs. Ground Source Heat Pumps
The most popular option out of the two, air source heat pumps sit outside your home and look like a standard air conditioner. Heat from the sun warms the air surrounding us, which is then taken in by a fan. The fan is there to maintain constant flow of warm air encountering the heat exchanger.
Ground source heat pumps collect and use the solar energy found in the earth through pipes underground know as ground loop or ground array. A mixture of water and anti-freeze is then pumped through the pipes transferring the heat below the frost line.
Heat pumps are one of the best heating systems available today and are highly efficient, with them being considered as the future of greener home heating in the UK. They don’t give off any carbon emissions locally and are able to transfer four times the thermal energy than the electricity they require. Better yet, heat pumps could reduce your current heating bills by 75%.
Benefits of Heat Pumps
1. Efficiency – Heat pumps offer 300% efficiency whilst gas boilers are recorded to cap out at 94%
2. Low maintenance
3. No Fossil Fuels – Heat pumps rely on electricity to absorb the outside heat
4. Provides both cooling and heating to the property
To learn more about Heat Pumps or to discuss using our expert services get in touch today, simply fill in your details below and one of our team will be in touch.
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