What Is a Heat Pump?
A heat pump is a device that is designed to use a refrigeration cycle to effectively transform low-temperature energy into higher-temperature energy. Ground source heating system heat pumps are up to four times more energy-efficient than the most efficient oil and gas boilers. These devices move heat that already exists rather than producing emissions that contribute to global warming through producing emissions caused by burning a fuel.
Ground Source Heating Systems
Ground source heating systems are electrically powered and work by tapping the natural heat that is stored in the earth to heat your home. In addition to heating your home, a heat pump can also cool your home during the summer months, as well as heat your swimming pool and your domestic hot water.
How Does a Heat Pump Work?
Heat pumps move energy from one place to another, similar to the way your fridge works. A ground source heating system transfers heat from where it is stored in the earth, into your home.
How Does The Heat Pump System Transfers Heat From Your Garden Into Your Home?
The system extracts this heat from the earth using, for example, a ground loop. This is a continuous closed loop made of a special kind of piping that is buried in the ground, in your garden. As water circulates through these underground pipes, it absorbs the heat from the earth surrounding the pipe. A heat pump inside your home is connected to this ground loop; and as the water reaches your home, the ground source pump transfers the heat from the water into your heating circuit for renewable heat.
How Are The Loop Pipes Installed?
There are two options for installing the ground loops: Installing them in boreholes of up to 90m deep; or burying them in trenches measuring up to 2m deep. The method that will be used for your ground loop will depend on the amount of space available in your garden, but both methods are equally efficient.
Can I Keep My Existing Radiators?
You will be able to use radiators and under-floor heating to distribute heat throughout your home. While the best option for optimal efficiency and benefit for a heat pump would be under-floor heating, you could also use extra or oversized radiators.
How Do You Know If a Ground Source Heat Pump Would Work In Your Home?
There are a few points to check before you begin looking at ground source heat pumps in detail, in order to make sure your house is suitable for this option of heating. For example, do you have enough space just outside your home for a bore or trench to be dug? You will also need to make sure that the ground is suitable for digging.