This Mitsubishi heat pump review brings together pricing, efficiency figures and independent ratings to help UK homeowners decide whether the Ecodan range is the right choice for their property.
Mitsubishi Electric has been manufacturing heating and cooling technology for decades, and its Ecodan air source heat pumps have become one of the most widely installed brands in the UK.
Mitsubishi Heat Pump Review: Key Facts
Here’s a snapshot table pulling together everything you need to know about Mitsubishi heat pumps before we go into more detail.
Are Mitsubishi Heat Pumps Worth It?
Mitsubishi heat pumps are worth considering for most UK homeowners thanks to a strong reputation for reliability, quiet running and dependable performance even in cold weather.
Mitsubishi Electric is a major Japanese manufacturer with a long history in heating and cooling technology, and its Ecodan range has become one of the most established and widely fitted heat pump brands by installers across the country, giving it a level of market presence that newer entrants like Aira or Cosy 6 haven’t yet built up.
Pros & Cons of Mitsubishi Heat Pumps
Pros:
- Excellent cold weather performance, maintaining efficient heating down to minus 20°C to minus 25°C outdoor temperature
- Wide model range from 4.5kW right up to 40kW, covering everything from flats to large commercial style properties
- Zubadan technology delivers exceptional efficiency, with a measured COP of 5.58 at 15°C outdoor temperature
- Large, well established network of trained installers across the UK, including here in Kent
- Quiet operation frequently praised in customer reviews
Cons:
- Standard warranty of only 3 years is shorter than some newer competitors like Aira
- Some customers report higher than expected electricity consumption in particularly cold spells
- Extended 10 year warranty is only available through Mitsubishi’s accredited Pro Partner scheme, so not every installer can offer it
- Pricing sits mid-range, more expensive than budget brands like Midea or LG heat pumps for equivalent output
- Larger Zubadan units require more outdoor space than compact monobloc alternatives
How Efficient Are Mitsubishi Heat Pumps?
Mitsubishi heat pumps are highly efficient, with SCOP ratings of up to 4.6 to 4.9 at a 35°C flow temperature, meaning the system produces between 4.6 and 4.9 units of heat for every unit of electricity it uses. The flagship Zubadan range pushes this further still, achieving a measured COP of 5.58 at 15°C outdoor temperature and remaining strong at 3.5 even at 2°C, both at a 35°C flow temperature.
This level of performance significantly outstrips a typical gas boiler, which tops out at around 93% efficiency, and can reduce a household’s carbon emissions by as much as 70%. In side by side efficiency comparisons, Mitsubishi’s COP of around 4.9 sits close to Panasonic air source heat pumps and Vaillant heat pumps, though slightly behind the highest scoring Daikin models on paper.
How Much Do Mitsubishi Heat Pumps Cost?
Mitsubishi heat pump installations typically cost between £11,000 and £16,000 fully fitted before any grant, dropping to between £3,500 and £8,500 once the £7,500 Boiler Upgrade Scheme grant is applied. Unit prices alone, excluding installation, range from around £2,600 to £5,815 depending on the model and output required.
| Model | Output | Price with £7,500 grant | Price without grant |
| Ecodan R32 Compact | 5kW | £3,500 to £5,000 | £11,000 to £12,500 |
| Ecodan R32 Ultra Quiet | 6, 8.5, 11kW | £3,800 to £6,000 | £11,300 to £13,500 |
| Ecodan Zubadan | 14kW | £5,500 to £8,500 | £13,000 to £16,000 |
This positions Mitsubishi as a mid-range option, generally more expensive than budget brands like Midea or Samsung heat pumps, but typically cheaper than premium options such as NIBE or Vaillant for a comparable specification.
What Is the Mitsubishi Heat Pump Range?
The Mitsubishi heat pump range, sold under the Ecodan name, spans compact monobloc units for smaller properties right through to high output Zubadan and commercial-grade systems capable of 40kW, giving it one of the broadest ranges of any brand covered in this series.
The R290 range uses a lower global warming potential refrigerant for improved environmental performance, while the Zubadan models are specifically engineered to maintain high output efficiency in genuinely cold conditions.
| Model | Output | Best for | Key feature |
| Ecodan R32 Compact | 5kW | Small homes and flats | Compact footprint |
| Ecodan R32 Ultra Quiet | 6 to 11.2kW | Medium homes, noise-sensitive locations | Very low noise operation |
| Ecodan R290 | 5 to 8kW | Environmentally conscious buyers | Low GWP refrigerant |
| Ecodan Zubadan | 14kW | Larger or older properties | Exceptional cold weather performance |
| Ecodan R744 | 4.5kW | Homes prioritising ultra-low GWP | CO2 based refrigerant |
This breadth of choice means Mitsubishi can typically match a wider range of Kent properties than more limited ranges from brands like Aira or NIBE, without needing to jump straight to a much larger unit.
What Warranty Comes With a Mitsubishi Heat Pump?
Mitsubishi heat pumps come with a standard 3 year warranty covering parts and labour when installed by any general MCS-certified engineer, extendable to 5, 7 or even 10 years when fitted by an installer on Mitsubishi’s accredited Pro Partner scheme. This 3 year standard cover is below the industry average for a premium brand, sitting well behind Vaillant’s 10 year Pro Partner option and NIBE’s 7 year extended warranty.
As with every brand in this review, keeping up with annual servicing is essential to maintain any extended warranty, so it’s worth confirming your installer’s accreditation status before booking.
Which Property Types Suit Mitsubishi Heat Pumps Best?
Mitsubishi heat pumps suit a genuinely wide range of property types, from small flats through to large older homes, thanks to the breadth of the Ecodan range and its strong cold weather performance.
The Zubadan models in particular are well suited to larger, older Kent properties with higher heat loss, including period homes in towns like Sevenoaks or Tunbridge Wells that may still be relying on original radiators, since the technology is specifically designed to maintain output in demanding conditions.
Smaller and more modern, well insulated new builds are often better matched to the compact R32 or R290 models rather than the larger Zubadan units.
What Do Trustpilot and Which? Say About Mitsubishi?
Mitsubishi holds a strong reputation among UK reviewers, with a Trustpilot rating of around 4.3 out of 5 reflecting consistently positive feedback on reliability and quiet operation.
Trustpilot
On Trustpilot, Mitsubishi heat pump customers regularly praise the exceptional performance and durability of the Ecodan range, with several reviewers reporting comfortable indoor conditions during extended cold spells where outdoor temperatures remained below minus 12°C.
A smaller number of reviews raise concerns about higher than expected electricity consumption during particularly cold weather, which is worth factoring into your running cost expectations.
Which?
Mitsubishi Ecodan heat pumps are widely fitted by Which? Trusted Traders across the UK and are frequently shortlisted alongside Aira and Vaillant heat pumps in independent best buy roundups thanks to the brand’s long track record and installer network. This widespread trade recommendation reflects Mitsubishi’s position as one of the most trusted and proven names in the UK heat pump market.
Is a Mitsubishi Heat Pump Right for Your Property in Kent?
Choosing the right heat pump brand depends on your property’s age, size and how much you value cold weather performance, so here’s a clear breakdown for Kent homeowners and landlords.
Choose a Mitsubishi heat pump if:
- You want a well established brand with a large, experienced installer network
- Your property is larger or older and needs strong performance in cold conditions
- You want the flexibility of choosing from a very wide range of output sizes
- You’re comfortable finding a Pro Partner accredited installer to access the longer warranty options
- Quiet operation is important due to a smaller garden or nearby neighbours
Don’t choose a Mitsubishi heat pump if:
- You want the longest possible warranty straight out of the box without needing an accredited installer, in which case Aira may suit better
- You’re working to a tight budget, where Midea or Samsung heat pumps may offer a lower entry price
- Your home is small and well insulated and doesn’t need the extra capacity of a Zubadan model
- You want a single company handling survey, install and aftercare directly, similar to Aira’s model
- You’re not able to source a Mitsubishi Pro Partner installer in your part of Kent
As a local, experienced air source heat pump installer, Guscott Heating fits Mitsubishi and other leading heat pump brands across Kent and will always recommend the system that genuinely matches your property rather than a one-size-fits-all approach.
Get a Free Heat Pump Quote In Kent Today
Whether Mitsubishi’s proven track record has caught your eye or you’re still weighing it up against brands like Vaillant, Daikin or NIBE, Guscott Heating is here to help homeowners and landlords across Kent make the switch to renewable heating with confidence.
Request your free air source heat pump quote tailored to your location, and take the first step towards a warmer, more efficient home.
Our local team can assess your property, explain how the Boiler Upgrade Scheme grant applies to you, and provide a clear, honest quote with no pressure to commit.
Frequently Asked Questions
What is Zubadan technology and why does Mitsubishi use it?
Zubadan is Mitsubishi’s patented technology designed to maintain high heating output and efficiency even in very cold outdoor temperatures, using a specially engineered compressor and refrigerant cycle.switch-heat.co
Does Mitsubishi offer heat pumps for larger commercial-style properties?
Yes, the Ecodan range extends up to 40kW output for larger properties, giving Mitsubishi one of the broadest capacity ranges of any brand covered in this series.
How much can switching to a Mitsubishi heat pump reduce carbon emissions?
Switching from a gas boiler to a Mitsubishi heat pump can reduce a household’s carbon emissions by as much as 70%, according to efficiency comparisons against typical gas boiler performance.
Is the Mitsubishi R744 model different from the rest of the range?
Yes, the R744 model uses a CO2 based refrigerant rather than the R32 or R290 refrigerants used elsewhere in the range, offering an even lower global warming potential for environmentally focused buyers.
Can I reduce my Mitsubishi heat pump running costs with a specific electricity tariff?
Yes, pairing a Mitsubishi heat pump with a heat pump friendly or time of use electricity tariff can help lower the £800 to £2,500 typical annual running cost by shifting usage to cheaper off-peak periods.
