Frequently Asked Questions About Heat Pumps Answered

ground-source-heat-pumpsA 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. Heat-pump-unitsThis 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.

How Much Does It Cost To Install a Heat Pump?

A new heat pump can cost between $3,785  $7,825. This price will naturally depend on the size of your home, the energy-efficient rating of the product you choose as well as the brand you go for. 
heat-pump-installersFor a top-of-the-line mini-split ductless heat pump unit you should be budgeting for anywhere around $10,000
However, there are many factors that could affect the overall price of your final installation, so you absolutely have to compare estimates from professionals in your location to get a better idea of your regional pricing trends.

Where Do Heat Pumps Work Best?

Heat pumps are best suited in moderate climates. When temperatures outside drop below freezing, some units may have a hard time and not function as efficiently. However, keep in mind that your heat pump can still be used in combination with your existing furnace.

How Many Hours a day Should a Heat Pump Run?

This will depend on the outside temperature. If the outside temperature goes below 30-40 degrees, your pump could be running constantly. Generally, however, a heat pump should go through a cycle roughly 2-3 times every hour. During this cycle, the heat pump should be running for anything between 10-20 minutes.