Geowarmth: Renewable Energy Solutions
- Biomass boilers
- Ground source heat pumps
- Air source heat pumps
- Solar thermal
- Solar PV
- Underfloor heating & radators
Call us today for a quote 0191 257 1704
How a heat pump works


How is a ground source heat pump installed
How we get heat from the ground

How air conditioning works

In heating mode, an external heat exchanger or evaporator absorbs heat from the air and transfers it to a refrigerant vapour in the refrigerant circuit. This passes in to a compressor where the vapour pressure is increased which creates an increase in temperature. This higher temperature pressurised refrigerant passes through another heat exchanger or condenser, where it liquefies and transfers heat that can be delivered to the property via the air in the building. The process is also known as a vapour compression cycle.
In cooling mode the process is operated in reverse with heat in the building extracted from the air and disposed of to atmosphere. A variation on this involves heat recovery where the extracted heat from some parts of a building can be used to warm other parts of the property or using a heat pump boiler to provide domestic hot water.
Air conditioning systems are based on heat pump technology with components common to those is a refrigerator.
The efficiency of heat pumps arises from some of the heat or cooling coming from the atmosphere rather than from electricity. There is a ratio of heat delivered to electrical power consumed known as the Coefficient of Performance or COP. In cooling mode this ratio is known as the Energy Efficiency Ratio or EER. Typical values are between 3 and 4 so for every 1kW of electricity input the equivalent of 3 or 4kW of heating or cooling is achieved. Air conditioning heat pumps thus provide a very cost effective way of heating and cooling a building compared with direct electricity and can also compare favourably with other forms of heating.
Replacement air conditioning

It is therefore necessary to replace existing R22 air conditioning with a more modern alternative such as an inverter controlled system containing the more efficient refrigerant R410A. Geowarmth can offer a rnage of solutions from single room air conditioners to whole building simultaneous heating and cooling systems.
Increases in efficiency of 30-50% should be possible by switching to R410A inverter controlled air conditioning units from old
R22 systems. Higher efficiency means lower electricity consumption and less CO2 emissions.
The cost of change need not be a burden. Various tax incentives are available for replacing old systems such as Enhanced Capital Allowances (ECAs) or Annual Investment Allowances which can allow businesses to write off the cost against tax in year one. In addition finance to businesses is also available.
Please contact us for a bespoke solution