Answer these simple questions and we will find you the BEST prices
Which type of solar quotes do you need?
Get up to 4 quotes by filling in only 1 quick form
Install a heat pump for less with the BUS grant
Increase the value of your home by installing a heat pump
High Temperature Heat Pumps: What Are They, Costs, & Benefits
- A high temperature heat pump is a low-carbon heating system that provides heating and hot water at temperatures between 60°C and 80°C, similar to a traditional gas boiler but with greater efficiency and lower environmental impact.
- The cost of a high temperature heat pump ranges from £11,000 to £42,500, depending on the type and size.
- High temperature heat pumps work with existing central heating systems without the major home modifications, making it an easier and more practical upgrade for older homes.
A high temperature heat pump is a highly efficient, low-carbon heating system that provides home heating and hot water between 60°C and 80°C, a great option for homes with existing radiator systems or properties that may not be suitable for standard heat pumps.
In this guide, we’ll explore how high temperature heat pumps work, their costs, and whether they’re the right choice for your home.
Finding the right installer gives you the peace of mind that your new heat pump will do its job properly. Rather than spending hours searching, let GreenMatch simplify the process for you. Complete our quick 30-second form, and we’ll match you with up to 4 trusted local heat pump installers who can provide free, no-obligation quotes tailored to your home and budget.
Ready to get started? Click the button below!
- Quotes from local installers
- Payment by finance available
- Save £7,500 with BUS grant
- What is a high temperature heat pump?
- How does a high temperature heat pump work?
- What is the difference between high temperature and normal heat pumps
- High temperature heat pump costs
- High temperature air source heat pump advantages & disadvantages
- Are high temperature heat pumps in the UK efficient?
- Is a high temperature heat pump suitable for my household?
- Is it worth it to get a high temperature heat pump?
- Frequently asked questions
What is a high temperature heat pump?
A high temperature heat pump is a low carbon heating system that provides home heating and hot water at temperatures similar to traditional gas boilers but with improved efficiency and environmental benefits.
High temperature heat pumps provide 3-4 times more heat energy than the electricity they consume. They can achieve temperatures between 60°C and 80°C, as opposed to normal heat pumps, which operate between 45°C and 55°C.
This makes them ideal for homes with existing radiator systems that would be costly to modify, or older buildings where traditional insulation may not be as effective for lower-temperature heating systems.
How does a high temperature heat pump work?
A high temperature heat pump works by transferring heat from an external source (air, ground, or water) into your home’s heating system.
A refrigeration cycle helps to boost the temperature output, as follows:
What is the difference between high temperature and normal heat pumps
The main difference between normal heat pumps and their high temperature counterparts is the operating temperature.
Standard heat pumps typically reach temperatures between 45°C and 55°C, although some newer models can achieve up to 65°C.
High temperature heat pumps operate at 60°C to 80°C, making them more compatible with existing radiators and traditional heating systems.
Some other key differences include:
Efficiency and technology
Standard heat pumps are generally efficient in mild climates and use conventional refrigerants and compressors.
High temperature heat pumps use advanced refrigerants (R290 or R32) and two-stage compression to achieve higher output temperatures while still operating efficiently.
Retrofitting compatibility
Standard heat pumps often require larger radiators, underfloor heating, and additional insulation to maintain comfort levels.
High temperature heat pumps work with standard-sized radiators and require fewer home modifications, making them easier to install in existing properties.
Costs
Standard heat pumps typically have lower upfront costs but may require additional insulation and heating system upgrades.
High temperature heat pumps have a higher initial cost due to specialised components but reduce the need for extensive retrofitting.
High temperature heat pump costs
The cost of a high temperature heat pump varies based on the heat pump size and type. Prices generally range from £11,000 to £42,500. Installation costs depend on whether you choose an air source or ground source heat pump, with air source heat pump prices running considerably lower.
| Type of heat pump | 8kW | 12kW | 16kW |
|---|---|---|---|
| Air to water heat pump | £11,000 | £14,500 | £17,500 |
| Horizontal ground source | £20,250 | £28,000 | £38,750 |
| Vertical ground source | £29,000 | £39,400 | £42,500 |
While the upfront cost of a high temperature heat pump can be a lot, long-term energy savings and potential government incentives make it a worthwhile investment.
In England and Wales, you may also be eligible for a £7,500 government heat pump grant through the Boiler Upgrade Scheme to help cover the heat pump installation costs. Visit GOV.UK to check eligibility and apply.
Depending on the type of heat pump you install, the best high temperature heat pump can save you up to £1,200 compared to G-rated gas boilers and £2,000 compared to old electric storage heaters.
The table below highlights potential annual savings when switching to a high temperature heat pump from an old, inefficient heating system.
| Type of heat pump | Old (G-rated) gas boiler | Old electric storage heaters |
|---|---|---|
| Air source heat pump | £290 | £550 |
| Ground source heat pumps | £1,200 | £2,000 |
High temperature heat pumps help to cut heating bills, but the upfront installation cost can be a off-putting. While comparing installers helps you save, doing it on your own takes time, and doesn’t always guarantee the best deal.
Skip the stress with our free, no-obligation quote service. Just fill out a quick 30-second form, and up to 4 trusted local installers will get in touch with their best offers.
Click below to begin!
- Quotes from local installers
- Payment by finance available
- Save £7,500 with BUS grant
High temperature air source heat pump advantages & disadvantages
- Less need for new radiators or additional insulation
- Provides heat at temperatures similar to conventional gas boilers
- More efficient than traditional boilers
- Reduced carbon emissions
- Higher upfront cost than standard heat pumps
- Can be more expensive to run than gas boilers, especially air source heat pumps.
- Longer heat-up times at higher temperature settings
Are high temperature heat pumps in the UK efficient?
High temperature heat pumps offer a highly efficient alternative to traditional heating systems, producing 3-4 times more heat energy than the electricity they consume.
They can achieve efficiencies comparable to standard heat pumps while operating at temperatures similar to gas boilers. However, due to their higher output temperatures, they consume more electricity than regular heat pumps, leading to slightly higher running costs.
Despite this, they remain significantly more efficient than gas or electric boilers, helping to lower carbon emissions and reduce long-term energy costs, especially when powered by renewable electricity.
Is a high temperature heat pump suitable for my household?
While most homes can benefit from a high temperature heat pump, some are better suited than others. These systems are particularly useful for properties where traditional low-temperature heat pumps may not be as effective or practical.
You should consider installing a high temperature heat pump if:
-
Your home is difficult to insulate: Older homes with solid walls, single glazing, or poor insulation may struggle to retain heat efficiently. Since high temperature heat pumps operate at similar temperatures to gas boilers, they can provide sufficient warmth even in less-insulated properties, which reduces the need for expensive insulation upgrades.
-
Your home is a Listed Building or in a Conservation Area: Strict planning regulations often make it difficult to install external insulation, upgrade windows, or make structural modifications. High temperature heat pumps allow homeowners to improve their heating efficiency without significant alterations to the property.
-
Your home isn't connected to the gas grid: Homes relying on expensive heating options like oil, LPG, or electric storage heaters can significantly cut energy costs and reduce carbon emissions by switching to a high temperature heat pump. These systems offer a more sustainable and cost-effective alternative to fossil fuel-based heating.
Additionally, if you want a low-disruption heating upgrade that works with your existing radiators, a high temperature heat pump can be an ideal solution. Unlike standard heat pumps, they don't require larger radiators or underfloor heating, making installation easier in older homes.
Is it worth it to get a high temperature heat pump?
There are several reasons a high temperature heat pump may be worth it for you. Firstly, they are 2-4 times more efficient than gas boilers. Additionally, you can expect to save £290 – £1,200 compared to G-rated gas boilers. The exact savings depend on the efficiency of your current heating system and the COP (Coefficient of Performance) of your heat pump.
One of the biggest advantages is their environmental impact. Unlike gas boilers, which burn fossil fuels, high temperature heat pumps use renewable energy sources to generate heat.
To get the most value out of your investment, it's important to choose the right installer. Instead of spending hours searching, let GreenMatch do the hard work for you. Fill out our 30-second form, and we’ll connect you with up to 4 local installers who can offer free, no-obligation heat pump quotes tailored to your needs.
Click the button below to get started.
- Quotes from local installers
- Payment by finance available
- Save £7,500 with BUS grant
Frequently asked questions