The efficiency of a heating system is determined using the CoP unit, which is a reference to COefficient of Performance. CoP determines the efficiency of a heat pump is by evaluating the amount of input as compared to the output. For example, if the heat pump is using 1 kW of electricity, and four energy units are produced The CoP would be 4. The greater the CoP is, the more efficient the heat pump will be.
What is the efficiency of a ground heat pump?
Ground-source heat pumps utilize soil as their primary source of energy. And they do this by using geothermal probes/collectors which are located inside your yard. They extract the energy from the ground and then pass them through heat exchangers before it is transferred to the heating system. This way they’re harnessing the power of natural, renewable sources instead of burning fossil fuels like gas. However, how efficient is a ground source heat pumps?
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The temperature of the ground is fairly steady throughout the year and is usually between 11-12 degrees Celsius across the UK. The ground temperature is usually enough to permit your heating system to run at a temperature of four CoP or more.
As per the Centre for Sustainable Energy, you can cut down on CO2 emissions by about 3 tonnes per year installing the ground sources heat pump within a four-bedroom house. It’s equivalent to flying between London in the UK to Hong Kong and back again. The typical life of a heat pump is approximately 25 years. This could result in a total savings in the range of 70 tons.
In the effort of the government to convince people to make use of more green energy sources and you may earn some money through the Renewable Heat Incentive for making use of a heat pump to heat your home.
How efficient is an air source heat pump?
A heat pump that is air-source does not have the same efficiency as ground source heat pumps However, with temperatures ranging from between -3 and 10 degrees Celsius, most air source heat pumps can achieve an efficiency that is around three CoP. This can increase with more extreme temperature outdoors.
They might be more for warmer climates, because both air and ground source heat pumps can cool rooms and increase the temperature. This could be particularly beneficial in a climate such as the UK in which temperatures are generally mild, however they can get to mid-20s or more in the heatwave.
Similar to a boiler, you can make use of intelligent technology to control the pump from your phone and help you ensure that your system is running most efficiently.
Do heat pumps eliminate humidity?
Certain heat pumps also be used as dehumidifiers, to help eliminate some of the humidity from your home.
The more hot an area and the higher the humidity the air may hold. This is why certain countries that are hot, especially in Asia are characterized by a greater humidity. This could cause issues in the event that you’re trying reduce the temperature of your home which is why it should be diminished initially.
A humidity range of 30-40% is the ideal level to remain cool and comfortably. Certain kinds of heat pumps can help keep this level in check and maintain the same temperature.
The dehumidifier inside the heat pump can operate in two modes that are cooling as well as drying mode. If the unit is in cooling mode it can take in heat and moisture from the air. This moisture is then released outdoors. The outdoor unit permits the heat to escape. If the unit is running in the dry state, it switches between cooling and heating and maintains the temperature in the room, while getting rid of any water.
In both of these modes, when the pump pulls the moisture from the atmosphere, it will start to notice a notable reduction in the temperature.
Do heat pumps need servicing?
Similar to an electric boiler heat source must be maintained regularly, and especially when you wish to last for a period between 20 and 30 years.
The majority of ground source heat pumps require periodic inspections to ensure they’re operating at a high efficiency. If your heat pump isn’t operating as efficiently as it should be able to lose as much as 25% efficiency, therefore it’s vital to check it’s been maintained. You could save money by doing this.
It is recommended to check the manual from the manufacturer in order to determine how often your pump must be maintained.
The maintenance for your heat source ground must include checking the following:
Control equipment and electronic devices
Compressor
Antifreeze in the soil
Pump to water
Pipes and connectors
The checks must be performed by a competent engineer. The heat pumps may contain F-Gas refrigerants. Therefore, an F Gas certified engineer is required to inspect these components.
A heat source air source needs to be checked for a few additional things. They include:
Cleaning filters
Eliminating dust and debris that may block air circulation
Cleaning fan blades
Verification of the levels of refrigerant
Inspecting for leaks
The heat pump should not require replacement of parts unless they’re damaged. The majority of heat pumps come with a 5 10-year guarantee but it’s likely to last for a longer time If it’s regularly serviced.