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Ground-Source Heat Pumps make use of the natural warmth from the ground to heat and provide hot water for your property. There are two types of Ground Source Heat Pump: (1) Horizontal Array, and (2) Borehole. Horizontal Array Heat Pumps are presented below:
The heat energy for a Horizontal Array Heat Pump is absorbed by a heat-exchanging coil which is installed in one or more trenches which are typically about 1 metre deep. The coil is then connected to the Heat Pump system located in the garage, plant room or utility room in the house. The length of coil required depends on the size and model of heat pump installed.
At this depth, the earth is at a constant temperature of approximately 4-8°C. This heat energy is transferred from the coil to the heat pump via a heat exchanger, and is subsequently upgraded to a higher temperature (typically 35-50°C, or higher) and used to heat water and to provide central heating.
The opportunity to use a Ground Source Horizontal Array Heat Pump is constrained by the amount of space / land available to install the heat-exchanging coil. A half acre site is usually recommended as a minimum.
IVT Greenline Ground Source Heat Pump
(i) Easy to install in a New Build scenario, can also be installed in a Renovation or Retrofit situation, assuming that sufficient ground / space is available.
(ii) Proven technology with a long lifespan. In countries such as Sweden and Germany, the technology has been around for a long time, and there are many installations which are more than 20 years old.
(iii) Horizontal Array Heat Pump systems tend to be more common than Borehole installations. This is partly due to their lower installation cost, as no drilling is required.
(iv) Environmentally friendly means to heat / provide hot water for your property. No fossil fuels are consumed as the system runs on electricity, which can be provided (at least in part) by sustainable sources such as Wind or Solar PV panels.
(v) Very efficient means to heat your property, both from an energy and cost perspective. One kW of electricity consumed by your Ground Source Heat Pump, will typically generate around 4 kWs of heat energy.
(i) What area of ground is available to install the heat-exchanging coil for the Heat Pump system?
(ii) Is it easy to dig to a depth of approximately 1 metre across the area of ground?
(iii) Are you considering installing a sustainable source of electricity (such as a small Wind Turbine or Solar Photo Voltaic system) to help provide power for your Heat Pump?
The Renewable Heat Incentive offers an excellent financial incentive to install a Ground Source Heat Pump in your home or property.