Air source heat pumps are becoming an option for UK homeowners looking for alternative ways to heat their homes and hot water. However, the cost of an air source heat pump system can vary considerably depending on the property, equipment and installation requirements.
If you are considering a heat pump, understanding what affects the total price can help you compare options and plan your budget more effectively.
This guide explains the main factors that influence air source heat pump prices in the UK.
What Is the Cost of an Air Source Heat Pump?
The price of an air source heat pump system depends on more than the heat pump unit itself. A complete installation may include heating equipment, hot water components, controls, pipework and other accessories.
The final cost can vary based on:
- The size and type of heat pump required
- The heating needs of the property
- Whether hot water is also required
- Existing heating system and pipework
- Installation work and property layout
- Additional components and accessories
- Any available funding or financial support
For this reason, it is important to look at the complete system rather than comparing the price of individual heat pump units alone.
1. Heat Pump Size and Output
One of the main factors affecting air source heat pump prices is the output required by the property.
A small, well-insulated home may have different heating requirements from a larger property with several bedrooms and higher heat loss. The system needs to be selected according to the heating demand of the building.
Choosing the correct output is important for both system performance and installation costs. A suitable assessment can help determine which type and size of heat pump may be appropriate.
The cost of the equipment can differ depending on its capacity, design and intended application.
2. Type of Air Source Heat Pump System
Different heat pump systems are designed for different heating requirements. For example, some systems are designed for low-temperature heating, while others are intended for higher-temperature applications.
Common options include:
- Air-to-water heat pumps: Transfer heat from outdoor air into a water-based heating system.
- Split systems: Use separate indoor and outdoor components connected as part of the heating system.
- Monobloc systems: House the main refrigeration components within the outdoor unit.
- Heating and hot water systems: Can be configured to support both space heating and domestic hot water.
The system design, manufacturer, output and required components can all influence the overall price.
3. Property Size and Insulation
The condition and size of your property can affect the equipment and work required.
A property with suitable insulation may retain heat more effectively, while a building with higher heat loss may need additional improvements before or alongside a heat pump installation.
Factors that may be considered include:
- Property size and layout
- Loft and wall insulation
- Window and door performance
- Existing heat loss
- Room heating requirements
- Radiator or underfloor heating suitability
Improving insulation may be considered as part of a wider energy efficiency plan. However, the most suitable improvements will depend on the condition and requirements of the property.
4. Hot Water Cylinder Requirements
If your air source heat pump will also provide domestic hot water, a suitable hot water cylinder may be required.
The cylinder size can depend on household demand, available space and the type of heating system being installed. Some systems may be supplied as complete packages that include a pre-plumbed cylinder and related components.
The cost of a system can therefore change depending on whether it is being used for heating only or for both heating and hot water.
When comparing prices, check whether the quoted system includes the cylinder, controls and other necessary components.
5. Installation and Property Requirements
Installation costs can vary depending on the property and the complexity of the work.
For example, an installation may require changes to existing pipework, heating controls or other parts of the system. The position of the outdoor unit and the distance between components can also affect the work involved.
Other considerations may include:
- Access to the property
- Outdoor unit positioning
- Existing heating system
- Pipework modifications
- Electrical requirements
- System commissioning and controls
A quotation should clearly explain what installation work is included so that you can compare different options more accurately.
6. Additional Heat Pump Accessories
An air source heat pump system may require a range of supporting components and accessories. The exact requirements depend on the system design and installation.
Potential components may include:
- Flexible hoses
- Anti-freeze valves
- Magnetic filters
- Flexi feet
- Drip tray brackets
- Heating controls and thermostats
- Hot water cylinders
- Connection and installation accessories
Not every property or system will require the same accessories. It is important to select components that are compatible with the chosen equipment and suitable for the installation.
Buying a complete kit may help you understand which components are included, but you should always check the product details before making a purchase.
7. Brand and System Specification
The manufacturer and specification of the heat pump can also affect the price.
Different models may offer different configurations, operating temperatures, capacities and control options. Some are designed for specific property types or heating requirements.
For example, Daikin offers different air source heat pump ranges, including low-temperature, mid-temperature and high-temperature systems.
When comparing models, consider more than the initial purchase price. Check the system specification, compatibility, intended application and the components required for installation.
How to Compare Air Source Heat Pump Prices
A lower equipment price does not always represent the lowest overall system cost. Two quotations may include different equipment, accessories or installation work.
Before choosing a system, consider the following:
- Check the heat pump output: Is it suitable for the property’s heating requirements?
- Review what is included: Does the price cover the required cylinder, controls and accessories?
- Compare system types: Make sure you are comparing similar configurations.
- Consider installation requirements: Check whether additional work may be needed.
- Review product specifications: Confirm compatibility and intended use.
- Ask for a clear quotation: Make sure included and excluded items are explained.
Taking this approach can make it easier to understand the actual cost of a heat pump system.
Explore Air Source Heat Pump Products from Infinity Solar UK
Infinity Solar UK supplies Daikin air source heat pumps, hot water cylinders, accessories and complete heat pump kits for customers exploring heating and hot water solutions.
Available product options include different system configurations, capacities and supporting components. Depending on your requirements, you can explore individual products or complete kits.
Visit Infinity Solar UK to browse air source heat pump products and accessories for your project.
Frequently Asked Questions
1. Why do air source heat pump prices vary?
Prices vary because each system may require different equipment, output, accessories and installation work. Property size, insulation and hot water requirements can also affect the total cost.
2. Does a heat pump system include a hot water cylinder?
Not always. Some systems are available with a separate cylinder, while complete kits may include a pre-plumbed hot water cylinder. Always check the product specification.
3. Are air source heat pumps suitable for every property?
Suitability depends on factors such as property heat loss, insulation, heating requirements and the existing system. A property assessment can help identify the appropriate system.
4. Are heat pump accessories included in the price?
This depends on the product or quotation. Some complete kits include selected accessories, while other components may need to be purchased separately.
5. Should I compare the unit price or the complete system cost?
Comparing the complete system cost is usually more useful because it considers the equipment, accessories and other components required for the intended installation.

