As the UK faces increasing temperatures and energy prices, homeowners and landlords are searching for smarter, more efficient heating and cooling solutions. One question is rising to the top: Can air source heat pumps cool your home?
If you’re a UK homeowner, you’re likely looking for year-round comfort and lower energy bills. If you’re a landlord, your eye is on EPC compliance and property value.
This guide dives into the dual functionality of air source heat pumps (ASHPs), not just as efficient heaters, but also as potential cooling systems. We’ll explain how these systems work, their viability in the UK climate, installation considerations, cost breakdowns, and how they compare to traditional HVAC solutions.
Whether you’re upgrading your home or managing rental units, understanding the cooling potential of air source heat pumps can help you make a confident, cost-effective decision.
Can Air Source Heat Pumps Be Used for Cooling in the UK?
Yes, air source heat pumps can absolutely be used for cooling purposes in the UK provided the system is designed with reverse-cycle (reversible) technology.
While traditionally associated with space heating, modern air-to-air and air-to-water heat pumps are increasingly offering a dual function: heating in winter, cooling in summer.
How cooling works with an air source heat pump
In cooling mode, a reversible heat pump essentially works like an air conditioner. It extracts heat from inside the property and releases it outdoors, thereby lowering indoor temperatures.
This process is known as active cooling and is particularly useful during UK heatwaves, which are becoming more frequent.
What Types of Air Source Heat Pumps Provide Cooling?
Not all ASHPs offer cooling. It depends on the system type:
Air-to-air heat pumps
Air-to-air heat pumps are most effective for both heating and cooling. They function similarly to split air conditioning units, making them ideal for residential properties and commercial premises.
When in cooling mode, air-to-air ASHPs can be highly efficient, often outperforming portable or window AC units. Their Coefficient of Performance (COP) in cooling mode typically ranges from 3.0–4.0, meaning for every 1 kWh of electricity, you get 3–4 kWh of cooling output.
If you’re considering a dual-purpose system for year-round comfort, request a free air heat pump installation quote from Future Heat, your MCS-certified local specialists serving Tyne and Wear, Newcastle, and the North East.
Air-to-water heat pumps
Air-to-water heat pumps are less common for cooling, some high-end models can offer passive or active cooling when paired with fan coil units or underfloor cooling systems.
This makes retrofitting more complex and costly compared to air-to-air systems.
Is the UK Weather Suitable for ASHP Cooling?
Despite the UK’s temperate climate, summers are getting hotter—2022 was the hottest on record, with temperatures exceeding 40°C in some areas (Met Office). That’s made cooling an increasing necessity.
While air conditioning units are still rare in UK homes, demand is rising. ASHPs with cooling functionality offer a low-carbon, energy-efficient alternative, making heat pumps suitable for most homes.
What Are the Benefits of Air Source Heat Pumps for Cooling?
Cooling-enabled air source heat pumps offer numerous benefits for UK property owners. From year-round comfort and reduced energy bills to eligibility for government grants and improved EPC ratings, they are a practical investment for modern, energy-conscious homes and buildings.
Why choose an ASHP over traditional AC systems?
- Dual Functionality: Heating in winter, cooling in summer—one system, year-round use.
- Lower Running Costs: Compared to gas boilers and older AC systems, ASHPs are more energy efficient.
- Grants Available: Under the Boiler Upgrade Scheme, homeowners can get up to £7,500 towards installation.
- Reduced Carbon Footprint: Helps meet sustainability goals and EPC targets.
- Quiet & Low Maintenance: Modern units are whisper-quiet and easy to service.
EPC bonus: For landlords, cooling with ASHPs can help meet Minimum Energy Efficiency Standards (MEES).
What Are the Limitations of Cooling with Air Source Heat Pumps?
Not all systems offer active cooling
Many air-to-water heat pumps in the UK are designed solely for space heating and hot water, without the capacity to cool indoor air. Only reversible heat pumps, also known as bi-directional or dual-mode systems, can provide active cooling.
Requires specific distribution systems for cooling
Unlike traditional air conditioning units, many air-to-water heat pumps require additional components like fan coil units, chilled water circuits, or underfloor cooling systems to deliver cool air effectively. Radiators, which are standard in most UK homes, are not suitable for cooling.
Reduced efficiency in high humidity or extreme heat
Although UK summers are typically mild, occasional heatwaves can challenge the efficiency of some heat pump systems. During extended periods of hot and humid weather, an ASHP may struggle to maintain consistent indoor cooling, especially if the property is poorly insulated.
Higher initial costs for cooling-enabled systems
Installing a cooling-enabled air source heat pump involves higher upfront costs, especially when retrofitting older buildings. This includes not only the hardware but also modifications to the indoor heat distribution system, electrical supply, and potentially insulation upgrades.
Limited cooling power compared to traditional AC systems
Heat pumps prioritise energy efficiency and sustainability, but they do not always provide the same intense cooling output as dedicated air conditioning units, especially in large commercial premises or open-plan residential spaces.
What Does It Cost to Install a Cooling-Enabled Heat Pump?
Typical installation costs (2025 estimates)
| System Type | Cost (Residential) | Cooling Capable? |
|---|---|---|
| Air-to-Air ASHP | £2,500–£5,500 | Best choice |
| Air-to-Water ASHP | £7,000–£12,000 | Limited |
| Hybrid (dual mode) | £10,000+ | Advanced setup |
Prices vary based on home size, insulation, and existing systems.
Are there added costs for cooling features?
Yes, especially for air-to-air systems or hybrid setups. Cooling-ready ASHPs may cost £500–£1,500 more than basic heating-only models. Also, professional installation is vital to ensure efficiency.
There are also running costs that come with heat pumps, so it is important to know how much electricity an air source heat pump uses.
What Are the Best Air Source Heat Pumps That Cool?
Several reputable manufacturers now offer high-efficiency air source heat pumps with cooling capabilities tailored for UK climates. The best model for you will depend on property size, budget, and whether you need air-to-air or air-to-water functionality.
Top brands with cooling functionality
- Daikin Altherma – Known for advanced control systems.
- Mitsubishi Ecodan – Quiet operation with strong UK support.
- Samsung EHS Mono – Efficient cooling in compact units.
- LG Therma V – Sleek design and smart home integration.
For commercial buildings, systems from Panasonic, Vaillant, and Carrier offer scalable cooling options with integrated BMS support.
Browse our ASHP installation services to compare models and get a free quote.
Are There Grants or Incentives for Cooling-Enabled Heat Pumps?
Yes, UK homeowners and landlords can benefit from various grants that apply to air source heat pumps, even those with cooling features. While the incentives primarily focus on heating, systems with integrated cooling are still eligible as long as they meet the installation criteria.
What financial support is available?
- Boiler Upgrade Scheme (BUS) – Up to £7,500 grant for installing ASHPs.
- ECO4 Scheme – Funding for low-income households to upgrade heating/cooling systems.
- Smart Export Guarantee (SEG) – If paired with solar, you can sell excess electricity back to the grid.
Who Should Consider a Cooling-Enabled Heat Pump?
Cooling-enabled air source heat pumps are a smart choice for homeowners seeking future-proof comfort, landlords looking to improve property value and compliance, and businesses aiming for sustainable climate control. Anyone prioritising efficiency, year-round usability, and lower carbon emissions should consider one.
Homeowners
- Future-proof your home with year-round climate control.
- Reduce reliance on fossil fuels.
- Access government funding while increasing comfort.
Landlords
- Improve EPC ratings (minimum “E” standard).
- Enhance tenant satisfaction during summer.
- Command higher rents for energy-efficient properties.
Commercial Businesses
- Meet Net Zero goals by switching to low-carbon HVAC.
- Improve staff comfort and productivity.
- Scalable systems for retail, offices, and warehouses.
Is Cooling with ASHPs Worth It in the UK?
Yes, especially as UK summers become hotter. Although historically uncommon, cooling via air source heat pumps is gaining traction among homeowners, landlords, and business owners seeking low-carbon climate control solutions.
When integrated into an energy-efficient property, the benefits of a cooling-capable heat pump extend beyond just thermal comfort, they contribute to sustainable building standards and support net-zero goals.
Frequently Asked Questions (FAQs)
No, not all models have cooling functionality. You’ll need to choose a reversible or air-to-air system specifically designed to switch between heating and cooling modes.
Usually not. Most standard heating-only systems can’t be upgraded to include cooling. If you want this feature, it’s best to install a new system designed for both.
Yes, in many cases. ASHPs are generally more energy-efficient than traditional air conditioners, especially when used in well-insulated UK homes.
Yes, for air-to-air systems, you’ll need wall-mounted or ducted fan units to distribute cool air. Radiators won’t work for cooling, and underfloor systems require specific designs.
No, using the cooling function in summer won’t impact performance in winter. Each mode operates independently using the same heat exchange cycle, just in reverse.
Our Verdict
As energy costs rise and UK summers grow hotter, it’s clear that flexible, efficient climate solutions are no longer a luxury, they’re a necessity. Air source heat pumps offer a compelling way to meet this need, providing both heating and cooling capabilities in one energy-efficient system.
Whether you’re a homeowner seeking long-term savings, a landlord aiming to boost EPC ratings and tenant appeal, or a commercial property manager focused on sustainability targets, this technology offers practical, future-ready advantages.
While not all systems are created equal, choosing a high-quality, cooling-enabled air source heat pump and installing it correctly can future-proof your property for comfort and compliance alike.
Myles Robinson is a seasoned expert in the boiler and home improvement industry, with over a decade of experience. He is deeply committed to environmental sustainability, actively promoting energy-efficient heating solutions to help households reduce their carbon footprint. By combining industry expertise with a dedication to environmental responsibility, Myles continues to lead efforts in transforming home heating practices towards a more sustainable future.
