Mitsubishi Air Source Heat Pump Review (UK)

Mitsubishi is a name you probably recognise for its cars, but it’s also a big player in home heating technology. In fact, their air source heat pumps are becoming a popular choice for UK households looking to cut energy bills and move away from gas boilers.

With a reputation for reliable engineering and a strong focus on efficiency, Mitsubishi’s heat pumps are designed to keep your home warm, lower your carbon footprint and take advantage of government schemes like the Boiler Upgrade Scheme (BUS).

In this article, we’ll look at how Mitsubishi air source heat pumps work, the key features that set them apart and whether they’re the right fit for your home. We’ll also cover the costs, benefits and potential drawbacks, so you can make a clear decision before investing.

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About Mitsubishi

Mitsubishi is a brand you’ve almost certainly heard of, best known for its cars and electronics. The company was founded in Japan in the 1870s and has since grown into a global powerhouse with businesses spanning everything from automotive to heavy industry and home appliances. Over the years, Mitsubishi has built a strong reputation for innovation and quality, making it a trusted name in households around the world.

In more recent years, Mitsubishi has turned its engineering expertise towards the renewable energy market, with a particular focus on heating and cooling solutions. Their air source heat pumps are designed to give UK homeowners a cleaner, greener alternative to traditional gas or oil heating.

By applying the same principles of efficiency and advanced design that made their cars and electronics popular, Mitsubishi has created heat pump systems that not only help lower running costs but also play a vital role in reducing carbon emissions.

Mitsubishi Air Source Heat Pumps

Mitsubishi air source heat pumps are well-known for their reliability, efficiency and quiet operation, making them a popular choice for homeowners in the UK. Each model is designed to suit different types and sizes of homes, so you can choose the one that best fits your household’s needs. Whether you’re upgrading from a gas boiler to a heat pump or installing renewable heating in a new build, Mitsubishi has many options to consider.

The Ecodan R290 is a environmentally friendly heat pump, using a natural refrigerant and capable of reaching high water temperatures up to 75ºC. It suits a wide range of homes, including larger and less well-insulated properties, especially with the newer models offering outputs up to 12kW.

The Ecodan R32 models feature low-maintenance, self-contained units that operate quietly even when the temperature outside drops as low as -20°C. The standard Ecodan R32 is ideal for typical UK homes, while the Compact version is perfect for smaller properties or where space is tight, maintaining full heating capacity with a quiet profile and high efficiency.

For larger homes or those in colder parts of the UK, the Ecodan R32 Zubadan stands out. Its robust heating capacity can handle bigger properties while maintaining stable heat output in freezing temperatures. This makes it a strong, efficient option if your heating needs are higher or you live in a cooler part of the UK.

Ecodan R290 Air Source Heat Pump

Available Sizes: 5kW, 6kW, 8.5kW, 10kW, 12kW

• A+++ Heating Efficiency (at 35ºC, range A+++ - D)

• Ultra Quiet Noise Levels

• MELCloud Enabled

• High Water Temperature Of Up To 75°C

• Fully Electric Source Of Heating & Hot Water

The Mitsubishi Ecodan R290 air source heat pump is a powerful and eco-friendly option designed to provide efficient heating and hot water for a wide range of homes. Thanks to its use of the natural refrigerant R290, it achieves high heating efficiency and can deliver hot water up to 75ºC, similar to a traditional boiler. This makes it especially suitable for larger or less insulated homes that need a reliable, high-temperature heating solution.

The heat pump runs quietly and lets you control and monitor it remotely via MELCloud, offering convenience alongside sustainability. It’s a great choice if you're looking for a low-carbon heating system that can handle colder UK climates while keeping energy use to a minimum.

Ecodan R32 Air Source Heat Pump

Available Sizes: 6.0kW, 8.5kW, 11.2kW

• Requires only water and electric connection

• Low maintenance

• Self-contained unit

• Ultra-quiet operation

• Operates with outside temperature as low as -20°C

The Mitsubishi Ecodan R32 air source heat pump is a versatile and reliable unit designed for most homes in the UK. It’s easy to install because it only needs connections to water and electricity, with no gas or fuel required. This self-contained system keeps maintenance low and runs quietly, so it won’t disturb your household or neighbours.

Thanks to its ability to operate efficiently even when outdoor temperatures drop to -20°C, it’s suitable for a wide range of climates in the UK. Whether you live in a small or medium-sized home, the Ecodan R32 offers an energy-efficient, low-carbon heating solution that’s smart and user-friendly.

Ecodan R32 Compact Air Source Heat Pump

Available Sizes: 5.0kW

• A+++ Heating Efficiency (at 35ºC, range A+++ - D)

• Low noise levels

• Maintains full heating capacity at low temperatures

• Zero carbon solution

• MELCloud Enabled

The Mitsubishi Ecodan R32 Compact air source heat pump is designed especially for smaller homes or properties where space is limited. It combines high energy efficiency with a quiet operation, helping you save on energy bills without disturbing your peace.

This model keeps delivering strong heating performance even when the outdoor temperature drops. With zero carbon emissions during operation and smart MELCloud controls for easy management, the Ecodan R32 Compact is a smart, eco-conscious heating solution tailored for compact living spaces.

Ecodan R32 Zubadan Air Source Heat Pump

Available Sizes: 14.0kW

• A+++ Heating Efficiency (at 35ºC, range A+++ - D)

• R32 refrigerant

• Designed to satisfy larger domestic premises

• Maintains stable heat output at very low temperatures

The Mitsubishi Ecodan R32 Zubadan air source heat pump is built for larger homes or properties with higher heating demands. Using advanced Zubadan technology and eco-friendly R32 refrigerant, it keeps delivering a stable heat output even when temperatures outside dive very low.

With its high efficiency and strong heating power, this model is perfect if you need a reliable system that can maintain comfort through the chilliest months without running up your energy bills. It’s a resilient, low-maintenance solution designed to handle bigger spaces while being kind to the environment.

Pros and Cons of Mitsubishi Heat Pumps

Mitsubishi heat pumps use renewable energy from the air to keep your home warm and your hot water running, even in colder weather. They are designed to fit a variety of home sizes and heating needs, with models offering quiet operation and easy remote control through their MELCloud app.

While they sometimes have a higher upfront cost compared to traditional boilers and other heat pumps on the market, their energy savings and quality can make them a smart long-term investment.

Below are the benefits of Mitsubishi air source heat pumps:

Pros of Mitsubishi Heat Pumps

High Energy Efficiency: Mitsubishi heat pumps deliver more heat energy than the electricity they consume, helping reduce your energy bills.

Eco-Friendly Refrigerants: They use low global warming potential refrigerants like R290 and R32, making them an environmentally responsible choice.

Quiet Operation: Advanced sound-dampening makes these pumps suitable for homes and neighbourhoods with noise restrictions.

Smart Controls: The MELCloud app lets you monitor and adjust settings remotely, improving convenience and energy management.

Wide Temperature Range: They can operate efficiently even when outside temperatures drop as low as -20°C to -25°C.

Low Maintenance: The simple design means fewer heat pump repairs and reduced upkeep costs over time.

Below are the cons of Mitsubishi air source heat pumps:

Cons of Mitsubishi Heat Pumps

Higher Initial Cost: The installation and purchase can require a significant upfront investment compared with traditional boilers and other heat pumps on the market.

Space Requirements: Outdoor units need a suitable external space, which might be limited in some properties.

Compatibility: Older heating systems may need modification to work efficiently with a Mitsubishi heat pump.

Temperature Limits: Ultra-compact models may struggle to maintain heating below very low temperatures, requiring a backup system in extremely cold areas.

Recommended Reading: Pros and Cons of Air Source Heat Pumps in the UK

Costs of Mitsubishi Heat Pumps

The cost of an air source heat pump can range significantly depending on multiple factors like the size of your home, which model you choose and the installer you choose.

For Mitsubishi heat pumps, the price of the unit itself typically ranges from about £2,000 to £6,000 depending on the model and power output. When you add installation costs and any upgrades such as upgrading your radiators, the total cost will increase.

Luckily, you can reduce this expense if you qualify for the UK government’s Boiler Upgrade Scheme, which offers up to £7,500 in funding towards heat pump installations. While the upfront cost may seem high, Mitsubishi heat pumps are energy-efficient and can help save you money on bills over time, making them a smart long-term investment in home heating.

Is a Mitsubishi Air Source Heat Pump Right For My Home?

If you’re wondering if a Mitsubishi air source heat pump is the right fit for your home, you should look at how well insulated your property is and whether you have space for an outdoor unit. These heat pumps work best with homes that are properly insulated, so if you’ve upgraded your windows or have underfloor heating, as an example.

If your home doesn't have adequate insulation, you’re still able to install a Mitsubishi air source heat pump, but you should be prepared to invest in insulation upgrades, keeping in mind that this will add to your upfront costs.

Additionally, Mitsubishi heat pumps come in a range of sizes, so there’s an option for everything from a compact flat to a large detached house.

Ultimately, when deciding whether an air source heat pump is right for your home, it’s best to get tailored advice from a qualified heat pump installer like Glow Green. We will carry out a home assessment, checking your insulation, radiators and how your property is laid out. This way, you’ll get clear recommendations on the best system for your needs and whether any upgrades are required to get the most from your new heat pump.

By working with Glow Green, you’ll ensure every important detail is considered, from choosing the right heat pump size to optimising performance and efficiency in your specific home. This thorough approach helps give you confidence that your heating system will deliver reliable, cost-effective comfort for years to come.

Mitsubishi Air Source Heat Pumps FAQs