The best air source heat pumps available in the UK right now include the Vaillant aroTHERM Plus, Daikin Altherma 3, Mitsubishi Electric Ecodan, Worcester Bosch Compress, Grant Aerona3, Samsung EHS Mono HT Quiet, Nibe F2040/F2050, LG Therma V, Hitachi Yutaki, and Midea Arctic.
Whether you’re a homeowner in Manchester, a landlord in Leeds, or looking to upgrade your heating in Birmingham, switching to an air source heat pump in 2026 is one of the smartest energy decisions you can make.
10 Best Air Source Heat Pumps: A Quick Look
Here is a concise overview of the ten best air source heat pumps available in the UK in 2026, covering everything from efficiency and upfront costs to warranties and the property types they suit best.
| Brand & Model | SCOP (35°C) | Supply Price (Unit Only) | Net Cost After £7,500 BUS Grant | Min Operating Temp | Noise Level | Standard Warranty | Trustpilot Rating | Best For |
| Vaillant aroTHERM Plus | 5.03 | £3,100–£8,700 | £2,500–£6,500 | −25°C | 54 dB | 2 yr (7 yr extended) | 4.6/5 | Best overall; modern & older homes |
| Daikin Altherma 3 | Up to 5.0 | £3,100–£9,200 | £3,000–£8,000 | −28°C | Moderate | 5 yr (7 yr extended) | N/A | Cold climates; older radiator systems |
| Mitsubishi Electric Ecodan | Up to 4.9 | £2,600–£5,815 | £1,500–£5,500 | −25°C | 45–48 dB | 3 yr (7 yr extended) | 4.3/5 | Most reliable; large installer network |
| Worcester Bosch Compress | Up to 4.99 | £1,450–£5,660 | £2,000–£6,000 | −25°C | Quiet Mark | 2 yr (12 yr extended) | 4.6/5 | Customer service; hybrid transitions |
| Grant Aerona3 R32 | Up to 5.41 | £2,500–£10,000 | £0–£2,500 | −25°C | Quiet Mark | 2 yr (7 yr extended) | 4.2/5 | Best value; budget-conscious buyers |
| Samsung EHS Mono HT Quiet | 4.9 | £3,400–£8,000 | Varies | −25°C | 35 dB | 2 yr (7 yr extended) | 1.2/5 | Noise-sensitive locations |
| Nibe F2040/F2050 | Up to 5.0 | £3,800–£10,000 | Varies | −25°C | Moderate | 2 yr (10 yr extended) | Mixed | Longest warranty; large homes |
| LG Therma V | Up to 5.2 | £3,340–£6,400 | Varies | −25°C | 32 dB | 3 yr (7 yr extended) | Mixed | Compact homes; mid-range budget |
| Hitachi Yutaki | Up to 5.25 | £3,000–£8,200 | Varies | −25°C | Moderate | 5 yr | 1.3/5 | Large homes needing high output |
| Midea Arctic | Up to 5.0 | £3,200+ | Varies | −20°C | 45 dB+ | 3–5 yr (7 yr extended) | 4.2/5 | Budget-friendly; smaller homes |
All supply prices are unit-only. Add £3,500–£6,000 for installation labour. The £7,500 BUS grant applies to fully installed systems by an MCS-certified installer. 0% VAT applies to all residential installations until March 2027.
10 Best Air Source Heat Pumps Ranked By Our Experts
These are the best air source heat pumps in 2026, ranked by our experts based on real-world efficiency, total installed costs, warranty protection, and suitability for the wide variety of homes found across the North West, Yorkshire, and the Midlands.
1. Vaillant aroTHERM Plus: Best for All-Round Efficiency and Flexibility
The Vaillant aroTHERM Plus is widely regarded as the best all-round air source heat pump available in the UK in 2026. Manufactured by a German company with over 141 years of heating expertise, it consistently tops efficiency rankings and carries Quiet Mark certification, making it suitable for residential areas throughout cities like Manchester, Sheffield, and Birmingham.
Efficiency
The Vaillant aroTHERM Plus achieves a Seasonal Coefficient of Performance (SCOP) of 5.03 at 35°C flow temperature. In simple terms, this means for every £1 worth of electricity it uses, it delivers over £5 worth of heat.
It uses R290 (propane) refrigerant, which has one of the lowest environmental impacts of any refrigerant currently available, and it can deliver flow temperatures up to 75°C, meaning it works with both underfloor heating and existing radiator systems without major upgrades.
Costs
The unit supply price ranges from £3,100 to £8,700 depending on the output size required. A fully installed system for a typical three-bedroom semi-detached home in the North West typically costs between £10,000 and £14,000 before the £7,500 BUS grant, bringing the net cost down to between £2,500 and £6,500.
With 0% VAT in place until March 2027, the overall affordability is strong for a premium unit.
Running Costs
Thanks to its class-leading SCOP of 5.03, the Vaillant aroTHERM Plus delivers some of the lowest running costs of any heat pump on this list. Many homeowners in the North West and Yorkshire who have switched from gas boilers report meaningful reductions in their annual energy bills, particularly when pairing their heat pump with a time-of-use electricity tariff such as Octopus Energy’s Agile tariff.
Properties Best Suited To
The aroTHERM Plus is suitable for a wide range of property types, from modern well-insulated homes to older properties with existing radiator systems. Its 75°C maximum flow temperature makes it one of the more flexible options for period homes and Victorian terraces commonly found across Leeds, Manchester, and the Midlands.
Available in 3.5, 5, 7, 10, and 12 kW sizes, it can be correctly sized for both smaller terraced houses and larger detached properties.
Is the Vaillant aroTHERM Plus Right for You?
Choose the Vaillant aroTHERM Plus if…
- You want the most efficient heat pump on the UK market and are happy to pay a modest premium for it
- Your home has existing radiators and you want to avoid the cost of replacing them
- You live in a residential area and want a Quiet Mark certified unit that won’t disturb neighbours
- Long-term running cost savings are your primary concern
Don’t choose the Vaillant aroTHERM Plus if…
- Your budget is tight and the net cost after the BUS grant is still higher than you can comfortably manage
- You need a heat pump with a strong standard warranty without requiring an extended installer scheme (the standard warranty is only 2 years)
2. Daikin Altherma 3: Best for Older Homes and Cold-Weather Performance
The Daikin Altherma 3 is the flagship heat pump range from the world’s largest HVAC manufacturer, and it’s an outstanding choice for homeowners who live in colder parts of the UK or who have older homes with existing high-temperature radiator systems.
It is one of the most widely available heat pumps across the North West and Yorkshire installer networks.
Efficiency
The Daikin Altherma 3 achieves a peak COP of 5.43, the highest peak figure of any brand on this list, and its seasonal SCOP varies by model. The High Temperature (HT) variant is particularly well suited to properties that need flow temperatures of up to 70°C, making it one of the few heat pumps capable of directly replacing a gas boiler without needing to upgrade radiators.
The HT F model operates down to an extraordinary −28°C, the best cold-weather performance of any pump reviewed here.
Costs
Supply prices for the Daikin Altherma 3 range from £3,100 to £9,200 depending on the model and output. Full installation typically costs between £10,500 and £15,500 for a three-bedroom home, with the £7,500 BUS grant reducing the net cost to between £3,000 and £8,000.
While it sits at the premium end of the market, Daikin’s 5-year standard warranty (extendable to 7 years through certified installers) offers reassurance over the longer term.
Running Costs
The Altherma 3’s high efficiency translates into competitive running costs, especially when paired with solar PV panels via Daikin’s smart controller system. Landlords with properties across the Midlands and Yorkshire have found this integration particularly useful for reducing tenant energy bills and improving EPC ratings.
Properties Best Suited To
The Daikin Altherma 3 is ideally suited to older properties and period homes that have not yet had radiator upgrades, as well as homes in colder, more exposed locations in northern England. Its wide output range covers everything from small terraced homes to large detached properties.
Is the Daikin Altherma 3 Right for You?
Choose the Daikin Altherma 3 if…
- Your home has older, high-temperature radiators that you don’t want to replace
- You live in a colder part of the UK and need reliable cold-weather performance
- You want a heat pump from a manufacturer with one of the UK’s largest installer and service networks
- Solar PV integration is a priority
Don’t choose the Daikin Altherma 3 if…
- You are on a tight budget and the premium pricing is a concern
- Your property is very large (above 16 kW demand) as the Altherma 3 maxes out at 16 kW
3. Mitsubishi Electric Ecodan: Best for Reliability and Nationwide Installer Coverage
The Mitsubishi Electric Ecodan is the most-installed air source heat pump brand in the UK, with over 15 years of proven track record in British homes.
Its widespread availability across the North West, Yorkshire, and the Midlands means that finding a qualified Mitsubishi-trained engineer is rarely a problem, which is a real practical advantage when it comes to maintenance and servicing.
Efficiency
The Ecodan delivers a COP of up to 4.9 and can provide flow temperatures up to 75°C. The newer R290 Monobloc range, launched in April 2025, comes in 5, 6, 8.5, 10, and 12 kW sizes and uses R290 refrigerant, which has a significantly lower global warming potential than the older R32 models.
The Ultra Quiet model reaches just 45–48 dB, making it one of the quieter options available.
Costs
Supply prices range from £2,600 to £5,815, making the Ecodan one of the more competitively priced options from a major brand. Installed costs for a typical three-bedroom semi-detached property typically fall between £9,000 and £13,000, with the net cost after the £7,500 BUS grant sitting between £1,500 and £5,500.
Running Costs
With a COP of up to 4.9, the Ecodan delivers strong running cost efficiency. Many homeowners across the North West and Yorkshire who have moved from gas central heating to an Ecodan system have reported lower annual energy bills, particularly during milder months when the heat pump operates at its most efficient.
Properties Best Suited To
The Ecodan suits a broad range of UK property types, from two-bedroom terraces to five-bedroom detached homes. Its 75°C maximum flow temperature means it can work alongside existing radiator systems.
The wide range of output sizes allows it to be correctly matched to homes of different sizes and insulation levels commonly found across the Midlands and Yorkshire.
Is the Mitsubishi Electric Ecodan Right for You?
Choose the Mitsubishi Electric Ecodan if…
- You want a heat pump from the UK’s most-established and widely-installed brand
- Access to local, qualified engineers for servicing and repairs is important to you
- Your home needs a quiet unit and the Ultra Quiet model appeals
- You want to pair with a 75°C flow system without upgrading radiators
Don’t choose the Mitsubishi Electric Ecodan if…
- You want direct manufacturer customer support (Mitsubishi routes all aftercare through installers)
- You need a standard warranty longer than 3 years without signing up to a certified installer scheme
4. Worcester Bosch Compress: Best for Brand Trust and Long-Term Warranty Protection
The Worcester Bosch Compress range brings the reassurance of the UK’s most trusted heating brand into the heat pump market. Holding a Royal Warrant and with 138 years in the heating industry, Worcester Bosch is a name that homeowners across Manchester, Leeds, and Birmingham already know and trust.
Efficiency
The Worcester Bosch Compress 7400i achieves an SCOP of 4.99 at 35°C and carries Quiet Mark certification. The Compress range includes three models designed to suit different property types: the 5800i AW (4–7 kW, R290 refrigerant), the 7400i AW (5–17 kW, semi-monobloc), and the 2000AWF (4–30 kW for larger properties).
All three work effectively with existing radiator systems and underfloor heating.
Costs
Supply prices range from £1,450 to £5,660, making Worcester Bosch one of the more affordable options from a premium brand. Installed costs for a typical three-bedroom home sit between £9,500 and £13,500, with the net cost after the £7,500 BUS grant coming in at £2,000–£6,000.
Worcester Bosch also offers a hybrid option that integrates with existing Bosch gas boilers, which can be useful for homeowners in older properties who want to transition gradually.
Running Costs
With an SCOP of up to 4.99, the Compress range delivers strong running cost performance that is competitive with Vaillant and Mitsubishi. The brand’s close relationship with installers and its detailed commissioning process means systems are generally well-set-up from day one, which contributes to real-world efficiency over time.
Properties Best Suited To
Worcester Bosch’s Compress range is particularly well suited to homeowners who want a reassuringly familiar brand and strong aftercare support. The 2000AWF model’s 4–30 kW output range makes it one of the most versatile options available for both small terraced homes and large detached properties across the Midlands and Yorkshire.
Is the Worcester Bosch Compress Right for You?
Choose the Worcester Bosch Compress if…
- Brand trust and customer service quality are among your top priorities
- You want the option of the longest available warranty (up to 12 years)
- You have an existing Bosch gas boiler and want a hybrid transition option
- You want a system with a strong, accessible UK support network
Don’t choose the Worcester Bosch Compress if…
- The standard 2-year base warranty (without an accredited installer scheme) concerns you
- You need high flow temperatures beyond what the standard Compress models offer
5. Grant Aerona3 R32: Best for Budget-Conscious Buyers and Landlords
The Grant Aerona3 is one of the best-kept secrets in the UK heat pump market. Despite being one of the most affordable options available, the 13 kW model achieves an SCOP of 5.41 at 35°C, the highest single-model efficiency figure on this entire list.
It’s an outstanding choice for budget-conscious homeowners in the North West, Yorkshire, and the Midlands who want genuine performance without the premium price tag.
Efficiency
The Grant Aerona3 R32 holds an A+++ energy rating, Quiet Mark certification, and an SCOP of up to 5.41. It uses R32 refrigerant, operates down to −25°C, and is fully compatible with existing radiator systems without requiring upgrades in many cases. Available in 6, 10, 13, and 17 kW sizes, it covers the full range of typical UK domestic properties.
Costs
The Grant Aerona3 is the most affordable fully installed heat pump option on this list. Supply prices range from £2,500 to £10,000 depending on the model, and after the £7,500 BUS grant, some smaller installations can result in a net cost of virtually zero for eligible properties.
This makes it an exceptional option for landlords looking to improve EPC ratings across multiple properties without breaking the bank.
Running Costs
Given its class-leading SCOP of 5.41, the Aerona3 delivers some of the lowest running costs available. A well-insulated three-bedroom home in the North West heated by a Grant Aerona3 on a competitive electricity tariff could see annual heating costs fall well below those of a comparable gas boiler setup.
Properties Best Suited To
The Grant Aerona3 is well suited to a wide range of UK homes, from smaller two-bedroom terraces to larger four-bedroom detached properties. It is particularly popular with landlords across the Midlands and Yorkshire who need a reliable, cost-effective heat pump solution for multiple rental properties.
Is the Grant Aerona3 Right for You?
Choose the Grant Aerona3 if…
- Getting the lowest possible net cost after the BUS grant is your primary concern
- You want outstanding efficiency without paying premium brand prices
- You are a landlord looking to improve EPC ratings across multiple properties
- You need compatibility with existing radiators to avoid additional upgrade costs
Don’t choose the Grant Aerona3 if…
- Brand recognition and market prominence are important to you
- You require the 7-year extended warranty but cannot access a G1-certified installer in your area
6. Samsung EHS Mono HT Quiet: Best for Noise-Sensitive Locations and Terraced Properties
The Samsung EHS Mono HT Quiet is the quietest air source heat pump on the UK market, achieving an extraordinary 35 dB at low fan speed, roughly equivalent to a quiet library.
For homeowners in terraced properties or densely populated areas across Manchester or Leeds, where noise can be a significant concern, this is a compelling advantage.
Efficiency
The Samsung EHS Mono HT Quiet achieves an SCOP of 4.9 and delivers flow temperatures of 70°C, making it one of the few heat pumps that can replace a gas boiler in an older home without requiring radiator upgrades.
The newer Gen 7 R290 model uses eco-friendly refrigerant, and SmartThings app integration allows for remote monitoring and scheduling. It is available in 9–16 kW sizes.
Costs
Supply prices sit between £3,400 and £8,000. Samsung’s customer service track record is a significant concern, with a Trustpilot rating of just 1.2/5, reflecting widespread issues with warranty claims and after-sales support. This is an important factor to weigh carefully given that a heat pump is a long-term investment.
Running Costs
With an SCOP of 4.9 and 70°C flow temperature capability, the Samsung EHS Mono HT Quiet runs efficiently across a wide range of property types. The SmartThings integration allows homeowners to programme heating schedules and take advantage of off-peak electricity tariffs, which can further reduce running costs.
Properties Best Suited To
The Samsung EHS Mono HT Quiet is best suited to homes in noise-sensitive residential areas, terraced properties with limited outdoor space, and older properties where replacing radiators is not a viable option. Its 9–16 kW output range covers most medium to large UK homes.
Is the Samsung EHS Mono HT Quiet Right for You?
Choose the Samsung EHS Mono HT Quiet if…
- Minimising noise is your single biggest priority and no other brand’s noise levels are acceptable
- Your home has existing high-temperature radiators you want to keep
- You are comfortable managing warranty issues through your installer rather than directly with Samsung
Don’t choose the Samsung EHS Mono HT Quiet if…
- After-sales customer service quality is important to you (1.2/5 Trustpilot is a serious concern)
- You want a minimum output below 9 kW (not available in this range)
7. Nibe F2040/F2050: Best for Large Homes and Maximum Warranty Coverage
Nibe is a Swedish manufacturer with over 70 years of heat pump experience, and the F2040 and F2050 models offer the longest available warranty of any brand on this list, up to 10 years through approved installers. For homeowners and landlords who want maximum long-term protection on their investment, Nibe is difficult to overlook.
Efficiency
Both the F2040 and F2050 achieve an SCOP of up to 5.0 at 35°C, competitive with Vaillant and Nibe. The F2040 suits 2–3 bedroom homes (3.7–12 kW), while the F2050 targets larger properties (5–20 kW) and supports cascade configurations for very large buildings. The myUplink smart app allows remote monitoring and scheduling, and Nibe’s adaptive intelligence feature learns your home’s heating patterns over time to optimise efficiency.
Costs
Supply prices range from £3,800 to £10,000. Installed costs for a typical property across Yorkshire or the Midlands are broadly comparable to Vaillant and Daikin, and the BUS grant applies in the same way. The standout feature is the warranty, which provides up to a decade of protection when installed by a Nibe-approved engineer.
Running Costs
With an SCOP of 5.0, Nibe’s running costs are competitive with the best on the market. The adaptive intelligence feature means the system becomes more efficient over time as it learns your household’s routine, which is a genuine long-term benefit over and above a standard heat pump’s performance.
Properties Best Suited To
The F2040 suits typical UK homes of two to three bedrooms, while the F2050’s larger output range and cascade capability make it suitable for large detached homes, period properties, and commercial or multi-unit rental buildings.
Note that the F2050 has a minimum output of 8 kW, so it is not appropriate for smaller or well-insulated homes.
Is the Nibe F2040/F2050 Right for You?
Choose the Nibe if…
- Maximum warranty protection (up to 10 years) is a top priority
- You have a larger home or are considering a cascade installation for a multi-unit property
- You want smart, adaptive technology that improves efficiency over time
Don’t choose the Nibe if…
- Your home is smaller and the F2050’s 8 kW minimum output would be oversized
- You are not near an approved Nibe repair partner, as service network coverage outside major cities can be limited
8. LG Therma V: Best for Compact Homes and Mid-Range Budgets
The LG Therma V R32 Monobloc S is a compact, lightweight heat pump that offers outstanding value in the mid-range of the market. Some models achieve noise levels as low as 32 dB, making the LG Therma V technically the quietest option available, fractionally ahead of Samsung’s headline 35 dB figure.
Efficiency
The LG Therma V delivers a COP of up to 5.2 on its best models and uses R32 refrigerant throughout the range. Available in 5–16 kW sizes, the monobloc design simplifies installation by eliminating the need for indoor pipe connections, which keeps labour time and cost down.
LG was an early adopter of R32 refrigerant, giving the range a strong environmental credential.
Costs
Supply prices range from £3,340 to £6,400, placing the LG Therma V firmly in the mid-range and offering genuine value compared to premium brands. It sits in a sweet spot for homeowners across the North West and Midlands who want strong performance without the price of a Vaillant or Daikin.
The standard 3-year warranty extends to 7 years through LG-trained installers.
Running Costs
With a COP of up to 5.2 and a compact, efficient design, the LG Therma V delivers competitive running costs. Its lightweight construction also reduces installation complexity, which can keep overall installed costs down compared to heavier, more complex systems.
Properties Best Suited To
The LG Therma V is particularly well suited to smaller homes, flats, and properties with limited outdoor installation space. Its compact footprint and low noise output make it a practical choice for terraced homes and semi-detached properties in urban areas across Leeds, Manchester, and Birmingham.
Is the LG Therma V Right for You?
Choose the LG Therma V if…
- You want a compact, lightweight heat pump with outstanding noise performance
- Mid-range pricing with strong efficiency is your priority
- You have limited outdoor installation space
Don’t choose the LG Therma V if…
- Consistency in SCOP ratings across the model range is important to your decision (ratings vary across LG models)
- You have had poor experiences with mid-tier brand customer service in the past
9. Hitachi Yutaki: Best for Large Properties with High Heat Demand
The Hitachi Yutaki range covers the widest output spectrum of any manufacturer reviewed here, from 4.3 kW right up to 24 kW, and its S80 model is uniquely capable of delivering domestic hot water at 80°C, a feature no other brand on this list can match.
For larger properties across the Midlands and Yorkshire with older pipework, this is a highly practical advantage.
Efficiency
The Hitachi Yutaki achieves a COP of up to 5.25. The range includes the Yutaki M (monobloc), Yutaki S (split), and Yutaki S Combi (with an integrated 180-litre cylinder).
The S80 model’s 80°C domestic hot water capability means it can work with uninsulated pipework in older properties where other heat pumps would struggle.
Costs
Supply prices range from £3,000 to £8,200. Like Samsung, Hitachi’s customer service record is a serious concern: a Trustpilot rating of 1.3/5 reflects widespread reports of poor warranty claim handling. This is a critical consideration given that a heat pump is a 15–20 year investment.
Running Costs
With a COP of up to 5.25, the Hitachi Yutaki offers strong running cost performance, especially for large properties where its higher output sizes allow it to be correctly matched to the heat demand.
Properties Best Suited To
The Hitachi Yutaki is best suited to large homes, period properties with older uninsulated pipework, and buildings that require outputs above 16 kW where few other manufacturers have a viable offering. It is one of very limited options for large commercial or multi-residential properties in the Midlands.
Is the Hitachi Yutaki Right for You?
Choose the Hitachi Yutaki if…
- Your property is large and requires an output above 16 kW that few other brands can provide
- Your home has older pipework and you need 80°C hot water capability
- You can mitigate customer service risks through a trusted local MCS installer
Don’t choose the Hitachi Yutaki if…
- Customer service and warranty support quality are priorities (1.3/5 Trustpilot is a significant red flag)
- Your home is of average size where other brands offer the same performance with better aftercare
10. Midea Arctic: Best for Affordable Entry-Level Heat Pump Performance
The Midea Arctic is one of the most affordable air source heat pumps available in the UK in 2026, and it’s a much stronger performer than its budget price point might suggest. Midea is one of the world’s largest appliance manufacturers, with global scale that allows it to offer genuinely competitive technology at accessible prices.
Efficiency
The Midea Arctic achieves an SCOP of up to 5.0 at 35°C and holds an A+++ energy rating, matching the efficiency of premium brands like Nibe. It uses R32 refrigerant, operates down to −20°C, and uses inverter technology to modulate output based on demand, which keeps running costs down in typical UK mild winters.
Costs
Units start from approximately £3,200, making the Midea Arctic one of the most affordable entry points into the heat pump market. Full installation typically costs between £7,000 and £14,000, and after the £7,500 BUS grant, the net cost for a typical installation can be very competitive.
The warranty covers 3–5 years as standard, extendable to 7 years through approved installers.
Running Costs
Annual running costs for the Midea Arctic average between £700 and £1,100 depending on tariffs, insulation levels, and property size. Savings of up to £400 per year versus a gas boiler are achievable, particularly for homeowners who pair their heat pump with a time-of-use tariff.
Properties Best Suited To
The Midea Arctic is best suited to small to medium-sized UK homes, typically 80–250 square metres, with moderate insulation. It is particularly well matched to terraced homes, semi-detached properties, and smaller detached houses across the North West, Yorkshire, and the Midlands where budget is a key consideration.
Is the Midea Arctic Right for You?
Choose Midea if…
- Budget is a primary concern and you want a capable heat pump at the lowest possible price
- Your home is 80–250 square metres with moderate insulation
- You are comfortable with a 3–5 year standard warranty
- Eco-friendly R32 refrigerant and basic smart controls matter to you
Don’t choose Midea if…
- You need a warranty of 10 years or more for long-term peace of mind
- Your home requires very quiet operation (45 dB+ may cause issues in some residential areas)
- Your property is large or poorly insulated and would need significant upgrades to work efficiently
How We Choose the Best Air Source Heat Pumps
At Clever Energy Boilers, we’ve drawn on years of hands-on installation experience across the North West, Yorkshire, and the Midlands, as well as independent data from sources including MCS certification records, manufacturer specification sheets, and consumer reviews, to compile this ranked list.
Our selection criteria included the following factors:
- Seasonal Coefficient of Performance (SCOP): We prioritised heat pumps with an SCOP of 4.5 or above at 35°C, as this represents genuine efficiency and real-world running cost savings for UK homeowners
- Total installed cost and net cost after the £7,500 BUS grant: We assessed the true out-of-pocket cost for a typical three-bedroom home, not just the unit supply price
- Cold-weather performance: Given the UK’s climate, we checked each model’s minimum operating temperature and capacity retention at lower ambient temperatures
- Noise levels: Particularly relevant for urban and terraced properties across the North West and Yorkshire, we looked at dB ratings and whether brands hold Quiet Mark certification
- Warranty and after-sales support: We assessed both the standard warranty and extended warranty terms, as well as real-world customer service quality via verified Trustpilot reviews
- Compatibility with existing UK homes: We considered flow temperature capability, refrigerant type, and whether units require significant additional works such as radiator upgrades or insulation improvements
- MCS approval and BUS grant eligibility: All units reviewed are MCS-approved and eligible for the UK government’s Boiler Upgrade Scheme
- Suitability for homeowners and landlords: We specifically considered ease of installation, EPC improvement potential, and multi-property applicability for landlords across the Midlands and Yorkshire
How to Choose the Best Air Source Heat Pump
Choosing the best air source heat pump comes down to matching the right system to your specific property, budget, and priorities. Below, we’ve put together a practical buying guide for homeowners and landlords across the North West, Yorkshire, and the Midlands.
Consider Your Property Size and Heat Demand
The size of your heat pump must match the actual heat demand of your home. A system that is too small will struggle to keep your home warm in winter, while one that is too large will cycle on and off frequently and waste energy.
A proper heat loss survey, carried out by an MCS-certified engineer like those at Clever Energy Boilers, is the most reliable way to determine the correct output size for your property.
Think About Your Existing Heating System
Most standard air source heat pumps operate at flow temperatures of 35–45°C, which is lower than the 60–80°C that gas boilers produce. If your home has older, smaller radiators designed for a gas boiler, you may need to upgrade them to work effectively with a standard heat pump.
Alternatively, several models on our list, including the Daikin Altherma 3 HT and Samsung EHS Mono HT, can deliver up to 70–75°C flow temperatures, making them suitable for homes with existing radiator systems.
Check Your Insulation Levels
A heat pump works most effectively in a well-insulated home. If your property has poor loft insulation, cavity wall insulation, or draughty windows, your heat pump will need to work harder to maintain a comfortable temperature, which increases running costs.
Before investing in a heat pump, it is worth considering whether any insulation improvements are practical and cost-effective. Many homeowners in the North West and Yorkshire have found that combining insulation upgrades with a heat pump installation delivers the greatest energy savings.
Understand the Boiler Upgrade Scheme Grant
The Boiler Upgrade Scheme currently provides £7,500 toward the installed cost of an air source heat pump for eligible homeowners and landlords in England and Wales. To qualify, your property must be in England or Wales, you must have a valid EPC, and the installation must be carried out by an MCS-certified installer.
Clever Energy Boilers is MCS-certified and can handle your BUS grant application on your behalf, with the £7,500 deducted directly from your invoice so you never pay the full amount upfront.
Factor in Running Costs and Energy Tariffs
The running cost of your heat pump depends on your electricity tariff, your home’s insulation level, and the efficiency of the unit. Pairing your heat pump with a time-of-use electricity tariff, such as Octopus Energy’s Agile tariff, can significantly reduce running costs by allowing the heat pump to operate during cheaper overnight hours.
Many homeowners across the North West and Yorkshire have also found that combining a heat pump with solar PV panels further reduces annual energy bills.
Noise Levels and Planning Considerations
Most modern air source heat pumps are permitted development, meaning you do not need planning permission to install one in most cases. However, noise regulations do apply: the unit must not produce more than 42 dB at one metre from a neighbour’s window or door.
If your property is in a densely populated area, a conservation area, or a listed building, it is worth checking with your local planning authority before proceeding. Our team at Clever Energy Boilers can advise on all planning-related aspects of your installation.
Consider Long-Term Warranty and Service Support
A heat pump is a 15–20 year investment, so the quality of after-sales support matters as much as the technology itself. Brands like Worcester Bosch and Vaillant have proven track records of strong customer service, while some budget brands on our list have significantly poorer reviews.
Always check whether your chosen installer is an authorised dealer for the brand they recommend, as this is often required to access extended warranty terms.
Ready to Get a Free Air Source Heat Pump Quote?
If you’re a homeowner or landlord in the North West, Yorkshire, or the Midlands and you’re ready to take the next step toward low-carbon, cost-effective heating, Clever Energy Boilers is here to help.
Our MCS-certified engineers provide expert air source heat pump installation throughout Manchester, Leeds, Sheffield, Birmingham, Liverpool, and the surrounding areas.
We handle every aspect of your installation, from the initial heat loss survey and system design through to commissioning, aftercare, and your Boiler Upgrade Scheme grant application.
With the £7,500 BUS grant currently available, 0% VAT on installations until March 2027, and some of the UK’s best heat pump brands in our portfolio, there has never been a better time to make the switch.
Request your free, no-obligation air source heat pump quote today.
Frequently Asked Questions
Can a heat pump heat my home in winter when temperatures drop below zero?
Yes, modern air source heat pumps are designed to operate effectively in sub-zero temperatures. Most models reviewed in this guide operate reliably down to −25°C, and the Daikin Altherma 3 HT F functions at −28°C.
The key factor is selecting a correctly sized system based on your home’s heat loss at the coldest design temperature for your location, which a professional heat loss survey from an MCS-certified installer will determine.
Will an air source heat pump qualify for the Boiler Upgrade Scheme if I’m a landlord?
Yes, landlords can apply for the £7,500 Boiler Upgrade Scheme grant, provided the property is in England or Wales, has a valid EPC, and the installation is carried out by an MCS-certified installer.
The grant applies to both residential and small non-domestic properties. New-build properties and social housing are not eligible, but rental properties owned by private landlords are fully eligible.
How long does it take to install an air source heat pump?
Most standard residential air source heat pump installations take between two and three days to complete. More complex installations, such as those requiring radiator upgrades, new pipework, or a hot water cylinder, may take slightly longer.
Clever Energy Boilers provides a clear installation timeline as part of your free quote so you know exactly what to expect.
Can I get a heat pump if my home has poor insulation?
A heat pump will still work in a home with below-average insulation, but it will be less efficient and your running costs will be higher than they would be in a well-insulated property. Many homeowners choose to carry out insulation improvements alongside their heat pump installation to maximise savings.
Your MCS installer should carry out a full heat loss survey and advise honestly on whether insulation improvements are worth considering before, or alongside, the heat pump installation.
Is the 0% VAT on heat pump installations permanent?
The 0% VAT rate currently applies to all residential heat pump installations in the UK and is confirmed until March 2027. Beyond that date, the government has not yet confirmed whether the 0% rate will be extended or whether the standard 20% VAT rate will return.
If you are considering a heat pump installation, completing it before March 2027 ensures you benefit from the full 0% VAT saving in addition to the £7,500 BUS grant.
