Ground Source Heat Pump Quotes

How Do Ground Source Heat Pumps Function?

Ground source heat pumps use the solar energy stored naturally in the ground to heat your home. When sunlight warms the soil, this heat remains trapped underground for decades, creating a reliable energy source.

A ground source heat pump system comprises two main components: the ground array (either vertically or horizontally installed) and the heat pump itself, which may include an indoor hot water cylinder. The ground array consists of pipes buried around your home, circulating a water and anti-freeze mixture that absorbs the stored solar energy from the soil. Through a process of compression and expansion, this energy is then transferred to heat your home.

The effectiveness of a ground source heat pump system depends on both the ground type and system capacity, determined by the trench and pipe lengths. Certain soil conditions, like clay, retain heat more effectively than standard soil, allowing for a more efficient heat transfer process.

Benefits of a Ground Source Heat Pump

Ground source heat pumps offer several notable advantages:

• In addition to heating, many modern ground source heat pumps can also provide cooling, making them versatile for year-round comfort.
• The hot water generated is suitable for baths and most washing machine settings, delivering convenience for household needs.
• Ground source heat pumps operate more quietly than standard boilers and are significantly quieter than air source heat pumps, ensuring a peaceful home environment.

How Much Does a Ground Source Heat Pump Cost?

Ground source heat pumps typically cost between £10,000 and £18,000, making them a significant investment. However, the savings on monthly energy bills can help to quickly offset this initial expense—provided the system is well-suited to your property.

Through the government’s Boiler Upgrade Scheme (BUS), homeowners can also receive a £5,000 grant towards the installation, promoting renewable and alternative heating options.

Drawbacks of a Ground Source Heat Pump

There are a few considerations to keep in mind before opting for a ground source heat pump:

The system does not produce boiling hot water for taps, which may not suit all hot water needs.

To maximise warmth, you might need to invest in larger radiators or upgrade to modern diecast aluminium radiators for optimal efficiency.

Ground source heat pumps are most effective in well-insulated homes, so ensuring your property—especially the loft—is properly insulated is essential.

The initial installation cost is high, which may be a barrier for some homeowners.

Planning Permission for Ground Source Heat Pumps

In the UK, ground source heat pumps generally qualify as "permitted developments," so planning permission is typically unnecessary. However, you will need planning permission if:

• Any part of the system extends beyond the land attached to your property.
• Another ground source heat pump is already installed on the premises.
• The installation area exceeds half a hectare.
• You plan to remove the heat pump once it reaches the end of its serviceable life or is no longer in use.

For listed buildings or properties within conservation areas, it’s advisable to consult your local planning department before committing to any installation costs.