Daikin Heat Pump Review: Is It Worth It?

Daikin is one of the most recognised names in renewable heating, and their air source heat pumps have earned a strong reputation across the UK for reliability, efficiency, and long-term performance. 

In this Daikin heat pump review, we cover everything you need to know, from upfront costs and running costs to real customer ratings and how Daikin stacks up against rival brands.

Daikin Heat Pump Review: Key Facts

Here is a snapshot of the key facts about Daikin air source heat pumps to help you quickly assess whether this brand suits your home and budget.

Is a Daikin Heat Pump Right for You?

A Daikin heat pump is worth serious consideration if you are looking for a well-engineered, reliable heating solution with strong efficiency credentials. The company is a global leader in air conditioning and heat pump technology, and their UK residential range, particularly the Altherma series, is widely regarded as a benchmark for air to water heat pump performance. They produce some of the best air source heat pumps on the market.

Pros and Cons of Daikin Heat Pumps

Pros:

• Very high energy efficiency, with SCOP ratings up to 5.0, meaning every £1 of electricity can produce up to £5 worth of heat
• Wide range of models suitable for properties from small flats to large five-bedroom homes
• Inverter-driven compressor technology, which adjusts output in real time to match your heating demand and avoid energy waste
• Quiet operation at as low as 19 dB, making Daikin one of the quieter options on the market
• Compatible with solar PV panels and smart home platforms like Google Home and Amazon Alexa
• Uses low GWP R-32 refrigerant, making it one of the more environmentally responsible choices
• Eligible for the £7,500 Boiler Upgrade Scheme grant when installed by an MCS-certified installer
• Warranty extendable up to 12 years with annual servicing and product registration

Cons:

• Higher upfront unit cost compared to some budget-friendly brands
• Optimal performance requires a reasonably well-insulated home; older properties may need upgrades first
• Some users have reported occasional connectivity issues with the Onecta app
• Standard warranty is shorter than some competitors unless extended through servicing registration
• May require oversized radiators or underfloor heating to run efficiently at low flow temperatures

What Is the Efficiency of Daikin Heat Pumps?

Daikin heat pump efficiency is among the best available for residential use in the UK, with SCOP (Seasonal Coefficient of Performance) ratings reaching up to 5.0. 

In plain terms, a SCOP of 5.0 means the system generates five units of heat for every one unit of electricity it consumes, which is dramatically more efficient than even the most modern gas condensing boiler, which operates at around 90% efficiency.

The Altherma 3 range achieves A+++ efficiency ratings at a 35°C flow temperature, making it particularly well suited for homes with underfloor heating or modern low-temperature radiators. Daikin’s inverter technology is central to this performance. 

Rather than switching on and off at full power, the system modulates continuously, matching output to the actual heat demand of your home. This steady, consistent operation avoids the energy spikes you get from boiler on-off cycling, and it keeps your home at a stable, comfortable temperature.

Even in colder UK winters, which are common across the Pennines, the North West coast, and the Yorkshire Dales, Daikin heat pumps maintain effective COPs of 3.5 to 4.5 down to outdoor temperatures as low as minus 25°C. 

This means homeowners across Manchester, Leeds, Sheffield, and Birmingham can rely on consistent heating performance throughout the year, not just during mild weather.

What Are the Costs of Daikin Heat Pumps?

The cost of Daikin heat pumps ranges from approximately £1,500 for a basic air to air model up to around £9,000 for a full-sized Altherma air to water system. Full installed costs, including labour, hot water cylinder, controls, and any pipework adaptations, typically range from £7,000 to £14,000.

Prices are estimates based on 2025/2026 market data and can vary depending on property type, installer, location, and additional works required.

The Boiler Upgrade Scheme (BUS), administered by Ofgem, provides a £7,500 grant directly to your MCS-certified installer, reducing the amount you pay upfront. 

Running Costs

Running costs for a Daikin air source heat pump average between £700 and £1,200 per year for a typical UK home. This compares favourably to gas central heating, where bills in poorly insulated homes can exceed £1,500 to £2,000 annually. 

The actual savings you see will depend on your electricity tariff, the size of your home, and how well insulated your property is. Homeowners on time-of-use tariffs such as Octopus Energy’s Agile can take advantage of off-peak electricity rates, which can push annual running costs down further.

What Is the Range of Daikin Heat Pump Models?

Daikin offers one of the broadest residential heat pump ranges of any manufacturer in the UK, covering both air to air and air to water applications. This makes them suitable for a wide variety of property types and heating requirements, from a compact city flat in Manchester needing supplementary heating to a large detached farmhouse in the Yorkshire Dales requiring a complete heating system replacement.

The Altherma 3 Monobloc is particularly popular in the UK because all components are housed in a single outdoor unit, keeping installation simpler and indoor space requirements minimal. 

The High Temperature variant is ideal for older properties in areas like the Black Country or the older terraced housing stock common across Greater Manchester and West Yorkshire, as it can deliver water at higher temperatures without requiring a full radiator replacement.

What Is the Warranty on a Daikin Heat Pump?

The standard warranty on a Daikin heat pump covers 5 to 7 years on parts and labour, depending on the model. However, Daikin offer an extended warranty of up to 12 years when homeowners register their product and maintain annual servicing by an approved engineer. 

This is a significant benefit, as heat pumps are long-term investments and having comprehensive coverage over more than a decade provides genuine peace of mind.

It is worth noting that the warranty is only valid when the system is installed by an MCS-certified installer. All Clever Energy Boilers heat pump installations meet MCS standards, which means your warranty is fully protected from day one. 

Always keep records of annual servicing visits, as these are required to maintain the extended warranty terms.

Which Property Types Are Best Suited for a Daikin Heat Pump?

Daikin heat pumps are best suited for well-insulated properties with enough outdoor space to accommodate the external unit. As a general guide, the Altherma range is appropriate for homes ranging from 80 to 400 square metres, covering everything from two-bedroom terraces to large five-bedroom detached houses.

Properties that work particularly well include:

• New build homes with underfloor heating already installed
• Well-insulated detached or semi-detached homes with an EPC rating of C or above
• Properties that have already had loft insulation, cavity wall insulation, or solid wall insulation installed
• Homes with a south-facing outdoor area for the external unit, though this is not essential
• Properties currently heated by oil or LPG, where the savings versus a heat pump are most significant
• Buy-to-let properties where landlords want to future-proof against upcoming energy efficiency legislation

Properties that may need additional preparation first include:

• Older Victorian or Edwardian terraced homes with solid walls and no insulation, which will likely need upgrading before a heat pump can run efficiently
• Very small flats with no outdoor space for an external unit
• Properties with an EPC rating of E or below without a plan to improve insulation

If you are unsure whether your property is suitable, a free home assessment from Clever Energy Boilers will confirm suitability and outline any preparatory works needed before installation.

What Do Customers Say About Daikin Heat Pumps?

Customer ratings for Daikin heat pumps are broadly positive, though as with any major brand, experiences vary depending on the installer and the specific model chosen.

Trustpilot

Daikin UK holds a Trustpilot rating of 4 out of 5 stars from over 2,200 customer reviews. Positive reviews frequently highlight the energy efficiency of the system, the long-term reliability, and responsive customer service. 

Some negative reviews cite customer service delays and, in isolated cases, installation issues, most of which relate to third-party installer workmanship rather than the equipment itself. This is a reminder of why choosing a qualified MCS-certified installer is so important.

Which?

Which? has assessed Daikin heat pumps as performing well in efficiency tests, with the brand consistently featuring in discussions of top-tier air source heat pump manufacturers for UK homes. While Daikin does not currently hold a Which? Best Buy badge for 2026, their products are reviewed favourably alongside brands such as Vaillant and Mitsubishi for overall reliability and performance. 

Independent testing confirms that their SCOP figures are achieved in real-world conditions, not just in laboratory settings.

What Are the Maintenance and Servicing Requirements for Daikin Heat Pumps?

Maintenance requirements for a Daikin heat pump are relatively straightforward compared to a gas boiler. Annual servicing costs typically range from £150 to £300 and should be carried out by a qualified engineer. 

A standard service includes checking and cleaning filters, inspecting refrigerant levels, testing system pressure, checking electrical connections, and running diagnostics via the Daikin Onecta app.

Unlike gas boilers, heat pumps have no combustion process, which means there is no annual flue inspection or gas safety certificate required. This simplifies compliance significantly for landlords managing multiple properties across areas like Greater Manchester, West Yorkshire, or the East Midlands. 

Daikin’s remote monitoring capabilities mean that minor faults can often be detected early, reducing the risk of costly breakdowns.

Alternatives to Daikin Heat Pumps

Daikin is one of several quality air source heat pump brands available in the UK. Here is how it compares to the main alternatives.

Daikin vs Aira Heat Pumps

Aira is a newer entrant to the UK market, offering a supply-and-install only service with a standout 15-year warranty. Daikin has a considerably broader model range and a longer track record in the UK. 

For homeowners who want flexibility in choosing their installer or who need a specific output size, Daikin is the stronger option. Aira suits those who prefer a fully managed, single-supplier experience.

Daikin vs Cosy 6 Heat Pump

The Octopus Energy Cosy 6 is a budget-friendly, entry-level air to water heat pump priced from around £3,818 after the BUS grant and is only available through Octopus Energy. Its SCOP of approximately 3.4 is notably lower than Daikin’s 5.0. 

Daikin is the better performer in terms of efficiency, model variety, and long-term reliability. The Cosy 6 is primarily a competitive option on price alone.

Daikin vs Panasonic Air Source Heat Pumps

Panasonic and Daikin are closely matched in build quality and UK market reputation. Panasonic’s Aquarea range covers outputs from 2 to 16kW with similarly strong A+++ ratings. Daikin edges ahead on inverter technology refinement and the breadth of its Altherma series options. 

For homeowners who cannot decide between the two, a site survey from a multi-brand installer like Clever Energy Boilers will identify which system suits your property better.

Daikin vs Nibe Heat Pumps

Nibe is a Swedish brand known for robust performance in very cold Scandinavian climates. Their systems can handle output sizes up to 20kW and are well-regarded for ground source heat pump technology as well. 

Nibe tends to cost more than Daikin at the upper end of the range. For standard UK homes in the North West, Yorkshire, and the Midlands, Daikin delivers comparable cold-weather performance at a more accessible price point.

Daikin vs Samsung Heat Pumps

Samsung’s EHS range offers sleek design and solid A+++ efficiency with outputs from 9 to 16kW. Samsung scores well on aesthetics and smart connectivity. Daikin counters with a wider output range starting from just 4kW, making it more versatile for smaller properties. For mid-sized modern homes, both are excellent choices.

Daikin vs Mitsubishi Heat Pumps

Mitsubishi’s Ecodan is one of the UK’s most popular heat pumps and a direct rival to the Daikin Altherma. Both brands deliver outstanding reliability and strong efficiency credentials. Mitsubishi has a slight edge on UK installer network availability; Daikin counters with its higher-temperature models that suit older housing stock. In terms of value for money, the two brands sit very close together.

Daikin vs Vaillant Heat Pumps

Vaillant’s aroTHERM Plus is regularly cited as one of the best overall air source heat pumps in the UK for efficiency and build quality. Its SCOP ratings match Daikin’s best figures, and Vaillant is particularly praised for its hybrid heat pump option, which pairs with an existing gas boiler. 

Daikin provides a broader residential range with more model variety. Both are excellent premium options.

Daikin vs Viessmann Heat Pumps

Viessmann’s Vitocal range is a well-engineered German product that integrates smoothly with existing heating systems, which makes it a popular retrofit choice. Daikin competes on model range depth and the proven performance of its Altherma series. Viessmann tends to suit homeowners who are already in the Viessmann boiler ecosystem and want continuity of brand.

Daikin vs Worcester Bosch Heat Pumps

Worcester Bosch is a household name in UK home heating, and their air source heat pump range benefits from a vast nationwide installer network. Worcester Bosch is a strong contender for homeowners who value brand familiarity and after-sales support infrastructure. 

Daikin outperforms on raw efficiency figures and offers more model flexibility, particularly for larger properties.

Daikin vs Hitachi Heat Pumps

Hitachi’s Yutaki range is a competent performer, particularly in colder conditions, and is well regarded in commercial settings. For residential installs across the North West, Yorkshire, and the Midlands, Daikin offers a more extensive residential-specific range with wider installer support. 

Hitachi is a solid choice; Daikin simply has more options tailored to UK homes.

Daikin vs Midea Heat Pumps

Midea is a budget-oriented Chinese brand that has grown its UK presence in recent years. Unit prices are lower than Daikin, which may appeal to cost-conscious buyers. However, Daikin is significantly ahead in terms of build quality, warranty coverage, UK installer training, and long-term reliability data. 

For homeowners looking for a long-term investment, Daikin represents better value over the system’s lifetime.

Should You Choose a Daikin Heat Pump?

A Daikin heat pump is a strong choice for many UK homeowners and landlords, but it is not the right fit for every situation. Here is a practical buying guide to help you decide.

Choose Daikin if:

• Your home is a well-insulated three to five bedroom property with an EPC rating of C or above
• You have underfloor heating or are open to upgrading to larger radiators for low-temperature operation
• You want a proven, globally trusted brand with a long track record in the UK market
• You are replacing an oil or LPG boiler and want to maximise the £7,500 BUS grant
• You value quiet operation, particularly in a residential area or terrace in cities like Leeds, Manchester, or Nottingham
• You want the option to extend your warranty up to 12 years by maintaining annual servicing
• You own a buy-to-let property and want to meet future minimum EPC requirements ahead of expected regulation changes
• You want smart controls and app connectivity for remote management of your heating system

Do not choose Daikin if:

• Your property is uninsulated and you are not prepared to carry out insulation improvements beforehand
• You are looking for the longest off-the-shelf standard warranty available (brands like Aira offer 15 years)
• Your budget is very tight and you cannot cover any costs above the £7,500 BUS grant
• You live in a flat or small apartment with no suitable outdoor space for an external unit
• Your property has very old narrow pipework that cannot support the flow rates required by a heat pump without significant replumbing

Get a Free Heat Pump Quote from Clever Energy Boilers

Clever Energy Boilers are a specialist renewable heating installer serving areas across the North West including Manchester, Leeds, Sheffield, Liverpool, Birmingham, Nottingham, and everywhere in between. Our team of MCS-certified engineers carries out professional air source heat pump installations that meet the standards required for the £7,500 Boiler Upgrade Scheme grant. 

We handle the full process from your free home assessment right through to grant application, installation, and aftercare.

Request your free, no-obligation air source heat pump quote today. 

Frequently Asked Questions 

Can a Daikin Heat Pump Provide Hot Water as Well as Heating?

Yes. The Daikin Altherma air to water range is specifically designed to provide both space heating and domestic hot water. The system connects to a hot water cylinder, and many models include integrated cylinder options for space-efficient installations. This makes it a complete replacement for a gas combi boiler in most properties.

Is a Daikin Heat Pump Noisy?

Daikin heat pumps operate at between 19 and 50 dB depending on the model and operating mode. At lower settings, this is quieter than a typical refrigerator. Daikin also includes a Night Quiet Mode on many models, which reduces noise output further during overnight hours, making them well suited to terrace and semi-detached properties in built-up areas.

Does a Daikin Heat Pump Work in Winter?

Yes. Daikin air source heat pumps are engineered to operate effectively in outdoor temperatures as low as minus 25°C. While efficiency does reduce slightly in very cold weather, the system continues to heat your home reliably through a typical UK winter, including colder spells common in the Pennines, the Peak District, and the Yorkshire Moors.

Will a Daikin Heat Pump Work With My Existing Radiators?

It depends. Daikin’s low-temperature Altherma models work best with underfloor heating or oversized radiators that can distribute heat effectively at lower flow temperatures of around 35 to 45°C. If your existing radiators are already generously sized, they may work without replacement. 

The Daikin Altherma 3 High Temperature model can deliver water up to around 70°C, making it more compatible with existing standard radiator systems in older homes.

Does Installing a Daikin Heat Pump Add Value to My Property?

Improving a property’s energy efficiency typically improves its EPC rating, which is increasingly reflected in market valuations. Moving from an EPC rating of D or E to a C or B through heat pump installation can make a property more attractive to buyers and tenants, particularly as energy bills remain a key concern for households across the UK. 

While a heat pump alone does not guarantee a specific uplift in value, combined with insulation improvements, it strengthens the overall efficiency profile of the property considerably.