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Ground source heat pumps (GSHPs) are leading the way in energy-efficient heating and cooling solutions. Harnessing the Earth’s natural heat, these systems offer cost savings and environmental benefits. But with so many options available, finding the right GSHP can be overwhelming. In this guide, we’ll explore the top models based on performance, efficiency, and pricing. Discover the best GSHP for your home and unlock long-term comfort and savings.
What are the best ground source heat pumps?
The best ground source heat pumps are Vaillant, Viessman, Nibe, Kensa and Worcester-Bosch. More information on these brand can be found on our website.
Welcome to our Best Ground Source Heat Pumps page!
So what are the Best Ground Source Heat Pumps and Prices?
Here you will find lots of information on the different models of ground source heat pumps.
There are two different types of heat pumps:
- Ground Source Heat Pumps
- Air Source Heat Pumps
How to avoid invalidating your boiler warranty?
Air Source Heat Pumps:
The most common type of heat pump is the air source heat pump, which transfers heat between your house and the outside air.
These heat pump will extract heat from air outside your property in the same way a fridge extracts heat from its inside.
Air source heat pumps become less efficient the cooler it is outside, but they can be capable of operating sufficiently in temperatures of -15 C, which is 99.99% of the year in the UK.
They have fantastic energy efficiency ratings and although they do have some impact on the environment (as they require electricity to run), they do not combust fuels directly, so in most cases they provide a fantastic way of lowering your carbon footprint.
Ground Source Heat Pumps:
A ground source heat pump functions similarly, but it functions by taking the residual warmth from the soil or a water body outside your property and moves it to the inside of the property.
Ground source, water source or geothermal heat pumps achieve higher efficiencies by transferring heat between your house and the ground or nearby water source. Although they are more expensive to install they generally have lower operating costs because they can rely on more constant source temperatures.
These heat pumps also have fantastic energy efficiency ratings and although they do have some impact on the environment (as they require electricity to run), they do not combust fuels directly, so in most cases they too, provide a fantastic way of lowering your carbon footprint.
Read about: Best Condensing Boilers
Which is the best ground source heat pump?
One of the best ground source heat pumps is the Viessmann Vitocal 222-G.
Heating & Hot Water
Not only will the Vitocal 222-G heat your property in a highly efficient manner, it will also provide domestic hot water too. This is thanks to being fitted with an integral hot water cylinder with a capacity of up to 220 litres.
Ground Source Heat Pump with Cooling
Unlike other renewable heating systems, the Vitocal 222-G can provide cooling during the summer months by harnessing the cooler underground temperatures too.
Best Ground Source Heat Pump by Warranty
The only downside to the Vitocal 222-G is that it’s warranty period of 2-5 years is beaten by other models. If warranty is important to you then look no further than the Vaillant geoTHERM which comes with a parts and labour warranty of up to 7 years.
Comparing ground source heat pumps
To find the best ground source heat pump for your home, it’s important to consider the following:
- Output rating
- Dimensions of the unit
- Length of the warranty period
- Efficiency rating
- Potential cost
- If it’s Microgeneration Certification Scheme (MCS) certified – required for Renewable Heat Incentive eligibility
Best ground source heat pumps and prices:
In the table below, we’ve compared key information about the best ground heat pump models side-by-side.
Manufacturer | Model | Available Outputs (kW) | ErP Energy Efficiency Rating | Potential Price |
geoTHERM | 22, 30, 38, 46 | A++ | £8,000 – £12,000 | |
Vitocal 222-G | 6.1 – 10.0 | A++ | £6,000 – £7,500 | |
Nibe F1145 | 5 – 17 | A+++(17kW – A++) | £9,000 – £10,000 | |
Evo | 7, 9, 13, 17 | A++ | £8,000 – £12,000 | |
Greenstore 6 System | 6, 7, 9, 11 | A+ | £4,500 – £8,000 |
The above prices are estimates but many ground source heat pumps tend to cost £8,000 to £12,000.
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Nibe ground source heat pumps
A Nibe heat pump could potentially lower your energy bills by as much as 75%. This is thanks to minimal electricity being needed to power the heat pump during operation.
Nibe ground source heat pumps are split into 2 ranges: the F Series and the more recent S Series.
Nibe S Series
- Output ratings from 6 kW up to 25 kW
- Integrated wireless connectivity
- User-friendly touchscreen display
- Use the uplink app to control the heat pump from your smartphone
- Automatically adjust the heating based on the weather conditions
- Integrated hot water heater (180 litres)
- Also boasts cooling technology
- Can be used with voice assistants
Nibe S Series Heat Pumps | Output Ratings (kW) | Efficiency | Warranty |
S1255 | 6, 12, 16 | A+++ | 2 -7 years |
S1155 | 6, 12, 16, 25 | A+++ | 2-7 years |
Nibe F Series Pumps
- Operational costs are kept to a minimum
- Smart energy-saving technology
- Outputs ranging from 5 kW up to 60 kW
Nibe F Series | Output Ratings (kW) | Efficiency | Warranty |
F1255 | 6, 12, 16 | A+++ | 2-7 years |
F1155 | 6, 12, 15 | A+++ | 2-7 years |
F1145 | 6, 8, 10, 12, 15, 17 | A+++ | 2-7 years |
F1355 | 28, 43 | A+++ | 2-7 years |
F1345 | 24, 30, 40, 60 | A+++ | 2-7 years |
Read about: Combi Boiler Reviews / Best Combi Boilers to Buy (and avoid)
Vaillant ground source heat pumps:
The most popular Vaillant ground source heat pumps are in the geoTHERM range. However, they also manufacture a diverse range of flexoTHERM multi source heat pumps which can be adapted to take heat from the air or water as well as the ground.
These heat pumps are amongst the most quiet during operation and have been awarded Quiet Mark accreditation as a result.
Vaillant Ground Source Heat Pumps | Output Ratings (kW) | Efficiency Rating | Warranty |
geoTHERM | 22, 30, 38, 46 | A++ | Up to 7 years |
flexoTHERM multi source | 5, 8, 11, 15, 19 | A+++ | 5-7 years |
Viessmann ground source heat pumps:
Viessmann have an extensive range of ground source heat pumps to choose between with outputs from 5.6 kW all the way up to 96.1 kW.
Their Vitocal range of heat pumps offer a number of benefits for new builds, semi-detached, detached homes and larger residential properties.
If you’re looking for a heat pump that can meet your domestic hot water demands then the Vitocal 222-G has an integral hot water cylinder.
Viessmann Ground Source Heat Pumps | Output Rating (kW) | Efficiency Rating | Warranty |
Vitocal 200-G | 5.6, 7.5, 9.7 | A++ | 5-7 years |
Vitocal 222-G | 5.8, 7.5, 10.4 | A++ | 5-7 years |
Vitocal 300-G | 5.7, 7.6, 10.4, 13, 17.2 | A++ | 5-7 years |
Vitocal 350-G | 25.4, 34.7, 42.2, 52.3 | A++ | 5-7 years |
Vitocal 350-G Pro | 27.2, 34.3, 56.1, 76, 96.1 | A++ | 5-7 years |
Read more: types of Gas Boilers
Mitsubishi ground source heat pumps:
Mitsubishi Ecodan Monobloc heat pumps can take heat from the ground or a water supply, such as a lake. These are powerful models with outputs of 45 kW and 60 kW that can be installed as single modules or stacked together to increase the power output (up to 960 kW).
The system delivers water flow temperatures of up to 65°C and is MCS certified which means that it’s eligible for the Renewable Heat Incentive.
Mitsubishi Ground Source Heat Pumps | Output Rating (kW) | Efficiency Rating | Warranty |
Ecodan Monobloc | 45, 60 | A++ | 3-7 years |
Worcester Bosch ground source heat pumps:
Worcester Bosch ground source heat pumps are available as either combination (combi) or system models. All models in the combi range have an integrated hot water cylinder (185 litres) for domestic hot water storage.
Meanwhile, the system range of heat pumps require you to have a separate hot water cylinder installed. It’s important to note that this hot water cylinder must be heat pump compatible.
Worcester Bosch Ground Source Heat Pumps | Output Ratings (kW) | Efficiency Rating | Warranty |
Greenstore LECP Combi | 5.4, 6.6, 8.7, 10.2 | A+ | |
(Greenstore 11 – A++) | 2 years | ||
Greenstore LECP System | 5.4, 6.6, 8.7, 10.2 | A+ | |
(Greenstore 11 – A++) | 2 years |
Kensa ground source heat pumps:
Kensa offers a fairly extensive range of ground source heat pumps. Output ratings ranging from 3 kW up to 30 kW are available across 3 ranges: Evo, Shoebox and Twin Compact.
All of Kensa heat pump ranges are highly efficient, come with a warranty of 5 years and are eligible for RHI payments. The main difference is price. Shoebox heat pumps are the most affordable (from £3,510) while the Twin Compact range has the highest price tag (from £9,230). Evo heat pumps sit in between with prices of the models in this range starting at £5,862.
A key benefit of all single-phase Kensa heat pumps are the electrical ‘soft starts’ which ensures that energy consumption is kept to a minimum during start-up.
Kensa Ground Source Heat Pumps | Output Ratings (kW) | Efficiency Rating | Warranty |
Evo | 7, 9, 13, 15, 17 | A++ | 5 years |
Shoebox | 3, 6 | A+ | 5 years |
Twin Compact | 12, 15, 16, 17, 20, 24, 30 | A++ | 5 years |
Read about: Different Types Of Reliable Boiler Systems Explained and their Costs
Ground source heat pump installation costs:
Ground source heat pumps aren’t the most affordable heating systems. And installation is fairly complex which means that the installation costs can be fairly high too.
The total cost of installing a ground source heat pump can come to between £10,000 and £18,000. In some cases, these costs can stretch to over £30,000.
However, while high, these prices don’t tell the whole story. This is because you will likely be making significant energy bill savings and could also be receiving RHI payments.
Existing System | Energy Bill Saving per year | RHI Payment (1 January – 31 March 2018) |
Gas Boiler (G-rated) | £505 – £580 | £2,335 to £2,750 |
Gas boiler (A-rated) | £65 | £2,335 to £2,750 |
Oil boiler (G-Rated) | £900 to £1,110 | £2,335 to £2,750 |
Oil boiler (A-rated) | £570 to £665 | £2,335 to £2,750 |
LPG boiler (G-rated) | £560 to £665 | £2,335 to £2,750 |
LPG boiler (A-rated) | Increase of £55 to £65 | £2,335 to £2,750 |
Coal | £525 to £645 | £2,335 to £2,750 |
Other Boiler & Heating System Types:
In addition to heat pump boiler installations we also fit other boiler types:
- The Common, Heat Only Boiler
- A System Boiler
- The Combi Boiler
- A new Heat Pump!
The boiler installation & repair team are all fully qualified to the highest standards and take pride in producing exemplary work standards which include completing all boiler installation requirements no matter what time or day this is required!
Our team of high-quality professional engineers have an extremely high 4.9 out of 5, Trustpilot score given by our previous happy customers and we are fully accredited by Gas Safe and Corgi registered, as well as FCA approved for all of our financial transactions.
The full range of heating & plumbing services provided by Let’s Heat are as follows:
- Boiler Repairs & Installations
- Supply & Fit of boilers
- Boiler Finance
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- Kitchen Plumbing
- Emergency Plumbing Repairs
- Bathroom Plumbing
- Emergency Kitchen Plumbing
- General Plumbing Services
- Emergency Plumbing Services
- Emergency Gas & Heating Engineer
Read about: Boiler Replacement And Installation Guide
Areas covered by our Heating Engineers:
The Let’s Heat Heating engineers cover all of Wales & England
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Let’s Heat provide Boiler Installation throughout Wales, including areas like; South East Wales, South Wales, South West Wales, Mid Wales, East Wales, West Wales and North Wales.
This includes cities like; Cardiff, Newport, Swansea and all other towns and cities in Wales
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Let’s Heat provide Boiler Installation throughout England, including areas like; South West England, South East England, East Midlands, West Midlands, North West England, and North East England.
This includes cities like; London, Reading, Southampton, Portsmouth, Bristol, Exeter, Plymouth, Gloucester, Swindon, Oxford, Leicester, Nottingham, Derby, Birmingham, Worcester, Wolverhampton, Walsall, Liverpool, Manchester, Leeds, York, Sheffield, Newcastle, Sunderland and Middlesbrough etc.
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FAQs
Are ground source heat pumps good?
Ground source heat pumps are excellent low carbon heating systems which are popular because of their high efficiency rate and low running costs.
How do ground heat pumps work?
Ground source heat pumps work through absorbing natural heat from the ground and transferring the heat into buildings to provide heating and hot water in a low-carbon, energy efficient way.
How long does a ground source heat pump last?
A well engineered commercial ground source heat pump can last 25 years.
How much electricity does a ground source heat pump use?
A ground source heat pump is able to deliver 3 to 4 kilowatts (kW) of heat for every 1 kW of electricity it consumes.
How much does it cost to install a ground source heat pump?
The cost can vary between £10,000 to £12,500 and a larger model can cost £15,500 to £17,500 to install.