Quick answer: The Baxi HP60 is a solid, well-specified air source heat pump from one of the UK’s most familiar boiler brands. It uses R290 refrigerant, comes in 4kW to 13kW sizes, can reach 75°C flow at -10°C outside, and has a seasonal efficiency (SCOP) of up to 5.34. For most homes it’s a sensible, good-value choice, with enhanced warranty cover of up to seven years when registered. Its main drawbacks are a short heat pump track record compared with the long-standing specialists and a standard warranty of just two years if you don’t register it.
Most people know Baxi from the boiler in their kitchen cupboard. It’s a very popular name, and a lot of our customers find that reassuring when they start looking at heat pumps. Baxi has offered air source heat pumps for a while, but the HP60, launched in October 2025, is its most serious attempt yet at the homeowner market.
I’ve written this Baxi heat pump review from an installer’s point of view. I’ll cover the models, efficiency figures, costs, grants and the kinds of Scottish homes where a Baxi air source heat pump makes sense, and where it doesn’t. All the specs below come from Baxi’s own UK product pages.
Baxi Heat Pump Review: At a Glance
The HP60 is Baxi’s flagship domestic heat pump: a high-temperature R290 monobloc in five outputs, with single and three-phase options at the top end. Here’s the quick summary.
| Feature | Baxi HP60 |
|---|---|
| Type | Monobloc air-to-water heat pump |
| Refrigerant | R290 (propane), GWP of 3 |
| Sizes | 4, 6, 8, 11 and 13kW (11kW and 13kW also in three phase) |
| Max flow temperature | Up to 75°C at -10°C outside |
| SCOP at 35°C flow | 4.70 to 5.34 |
| SCOP at 55°C flow | 3.73 to 3.99 |
| Sound pressure at 1m | 40 to 44 dB(A) |
| Operating range | -25°C to +35°C outside |
| Warranty | 2 years standard, up to 7 years enhanced (terms apply) |
| Launched | October 2025 |
| Grant eligible in Scotland? | Yes, via Home Energy Scotland when installed by an MCS-certified installer |
Is a Baxi Heat Pump Worth It?
Yes, for most homes the Baxi HP60 is worth considering. It matches the headline specs of the leading R290 heat pumps (75°C flow, A+++ ratings, low noise) and comes from a brand with a large UK service network behind it.
What I like about it is that Baxi has clearly designed it with retrofit homes in mind. The 75°C flow temperature means it can work with more of your existing radiators, which matters in older Scottish properties. Each outdoor unit also has its own expansion vessel and water pump built in, plus hot water and energy monitoring, so you can see how the system is performing.
Where it’s less proven is in long-term track record. The HP60 is a new model, and Baxi doesn’t have the decades of heat pump history that some specialist manufacturers have. That doesn’t make it a bad product, but it’s worth knowing.
Pros and Cons of Baxi Heat Pumps
| Pros | Cons |
|---|---|
| Up to 75°C flow at -10°C, good for older radiator systems | Standard warranty is only 2 years without registration |
| SCOP of up to 5.34 at 35°C flow | Newer to heat pumps than long-standing specialist brands |
| A+++ at 55°C flow on the 4kW, 6kW and 8kW models | R290 units have stricter siting and clearance rules than R32 models |
| Quiet: sound pressure from 40 dB(A) at 1m | Larger 8kW to 13kW units weigh up to 142kg, so need a solid base |
| Low-GWP R290 refrigerant | Fewer real-world performance reports yet, as it launched in late 2025 |
| Built-in expansion vessel, pump and energy monitoring | |
| Familiar brand with a large UK service network |
How Efficient Are Baxi Heat Pumps?
Very efficient. The HP60 has a SCOP of between 4.70 and 5.34 at a 35°C flow temperature, which means it can deliver roughly 4.7 to 5.3 units of heat for every unit of electricity it uses over a heating season.
At 55°C, a more realistic figure for a home keeping most of its existing radiators, the SCOP drops to between 3.73 and 3.99. That’s still a strong result. The smaller 4kW to 8kW models keep an A+++ energy rating even at 55°C, which not every heat pump manages.
| HP60 model | SCOP at 35°C | SCOP at 45°C | SCOP at 55°C | ErP at 55°C |
|---|---|---|---|---|
| 4kW | 5.34 | 4.40 | 3.99 | A+++ |
| 6kW | 5.22 | 4.35 | 3.90 | A+++ |
| 8kW | 5.20 | 4.34 | 3.89 | A+++ |
| 11kW (single or three phase) | 4.77 | 4.09 | 3.75 | A++ |
| 13kW (single or three phase) | 4.70 | 4.06 | 3.73 | A++ |
These are lab figures, so your real-world efficiency will depend on your home’s heat loss, your radiators, the flow temperature we design for and how the system is set up. Getting the design right matters more than the brand on the box. That’s why we always do a proper heat loss survey before recommending a size.
To put the numbers into context, here’s a rough example. Say your home needs 12,000kWh of heat a year. At a SCOP of 4.35 (the 6kW model at 45°C), the HP60 would use about 2,760kWh of electricity. At around 26p per kWh (the Ofgem price cap for 1 October to 31 December 2026), that’s roughly £720 a year for heating and hot water. A 90% efficient gas boiler would need about 13,300kWh of gas, which at around 8p per kWh is roughly £1,070, before standing charges. Your figures will differ, and a heat pump tariff can bring the electricity cost down further. Our guide to what heat pumps cost to run in Scotland goes into more detail.
Baxi Air Source Heat Pump Models
Baxi UK currently lists four domestic air source heat pumps: the HP60 and HP40 for the general homeowner market, and the Assure HP55 and Assure HP50, which are aimed at social housing and new-build developments. As a homeowner, you’ll mostly be choosing between the HP60 and HP40.
| Model | Refrigerant | Sizes (kW) | Max flow temp | Notes |
|---|---|---|---|---|
| Baxi HP60 | R290 | 4, 6, 8, 11, 13 (11 and 13 also three phase) | 75°C at -10°C outside | Flagship high-temperature model. SCOP up to 5.34. Up to 7-year enhanced warranty |
| Baxi HP40 | R32 | 4, 5, 7, 8, 11, 13 (11 and 13 also three phase) | Up to 65°C | More flexible siting. SCOP up to 5.03 at 35°C. Up to 5-year enhanced warranty |
| Baxi Assure HP55 | R290 | 4, 6, 8, 11, 13 | 75°C at -10°C outside | Social housing and new-build version with the same performance figures as the HP60 |
| Baxi Assure HP50 | R32 | 4, 5, 7, 8, 11, 13 | Up to 65°C | Social housing and new-build version of the R32 unit |
Baxi also makes larger commercial heat pumps under the Auriga name, but those aren’t designed for homes.
Baxi HP60 vs HP40: which is better?
For most retrofit homes in Scotland, I’d lean towards the HP60. It runs hotter (75°C vs 65°C), it’s more efficient at 55°C (a SCOP of 3.73 to 3.99, compared with 3.19 to 3.39 for the HP40) and it’s quieter. Baxi’s own figures give the HP60 6kW a sound pressure of 40 dB(A) at 1m, while the HP40 ranges from 45 dB(A) on the 4kW to 58 dB(A) on the 13kW three phase.
The HP40 still has its place. As an R32 unit, it has fewer siting constraints, which can help on tight plots. It also suits well-insulated homes and new builds that only need low flow temperatures.
HP60 size and weight
The 4kW and 6kW HP60 units measure about 1,301mm wide, 725mm high and 426mm deep and weigh 94kg. The 8kW, 11kW and 13kW units are bigger, at around 1,390mm wide, 872mm high and 523mm deep, and weigh between 122kg and 142kg.
How Much Does a Baxi Heat Pump Cost?
The Energy Saving Trust puts the typical cost of installing an air source heat pump at around £14,000, and a Baxi HP60 system will usually sit in a similar range. Your actual price depends on the size of unit, the hot water cylinder, whether any radiators need upgrading, and how much pipework is involved.
The heat pump itself is only part of the cost. A full installation usually includes:
- The outdoor HP60 unit, sized from a heat loss survey
- A heat pump hot water cylinder (Baxi offers its own ASHP cylinder and pre-plumbed cylinder)
- Controls, such as the Baxi ASHP Control
- Any radiator upgrades, pipework and electrical work
- Commissioning, MCS certification and paperwork for your grant
Every home is different, so these are only typical figures. We fix your price after a survey, so there are no surprises later.
Baxi heat pump grants and loans in Scotland
The good news is that most Scottish homeowners won’t pay anything like the full cost. Through Home Energy Scotland, you can get a grant of up to £7,500 for an air-to-water heat pump like the HP60, rising to £9,000 with the rural and island uplift. There’s also an optional interest-free loan of up to £7,500.
A few rules apply. You must apply and get a written offer before any work starts. The installer and the product must both be MCS certified, and the heat pump has to provide all of your heating and hot water. You can check your eligibility with our heat pump grant checker, or read our full guide to the Home Energy Scotland grant and loan.
We’re also part of the new UK Government Warm Homes Loan Scheme. It offers low and zero-interest loans of up to £20,000 for an air-to-water heat pump, with some loans running up to 30 years, and it can be combined with a Home Energy Scotland grant. Find out more in our article on the Warm Homes Loan Scheme in Scotland.
As a rough example, if a Baxi installation came in at the £14,000 typical figure, a £7,500 grant would bring your share down to £6,500, which a loan could then spread over time.
What Property Types Suit a Baxi Heat Pump?
The HP60 suits a wide range of homes, including older properties, thanks to its 75°C flow temperature. Here’s how I’d match it to typical Scottish homes.
- Stone-built and older homes: A good match. The higher flow temperature means you may be able to keep more of your existing radiators. Our article on high-temperature heat pumps explains the trade-offs.
- 1960s to 1990s semis and detached homes: Ideal territory for the 6kW to 11kW models, especially with decent loft and cavity insulation.
- New builds and well-insulated homes: The HP60 works well, though the HP40 may be just as good and slightly more flexible to site.
- Larger homes: The 11kW and 13kW models, including three-phase versions, can cover bigger heat demands.
- Tenement flats: Often tricky for any air source heat pump, because of space for the outdoor unit and shared ownership. We’d need to look at your property first.
Because the HP60 uses R290, it needs more clearance around it than an R32 unit, and Baxi describes its siting rules as stricter. Ground-floor locations with good airflow are usually fine. Our guide to heat pump location rules covers what to expect. If you’re unsure what output you’d need, read what size heat pump you need in Scotland.
Baxi Heat Pump Maintenance Requirements
A Baxi heat pump needs very little day-to-day attention, but you should have it serviced once a year by a qualified heat pump engineer. To get the enhanced warranty, you’ll also need to register the unit and meet Baxi’s terms and conditions, so check those when your system is installed.
Between services, a few simple habits will keep it running well:
- Keep the area around the outdoor unit clear of leaves, snow and plants
- Don’t block the fan or cover the unit
- Check the system pressure now and again, as you would with a boiler
- Keep an eye on the energy monitoring readings, so you spot any change in performance early
Scottish winters are no problem for the HP60, which is rated to operate down to -25°C. It will run defrost cycles in cold, damp weather, which is completely normal. We can look after your annual servicing once your system is installed.
What Are the Ratings for Baxi Heat Pumps?
There isn’t a body of independent customer reviews specific to Baxi heat pumps yet, mainly because the HP60 is so new. The ratings that do exist mostly relate to Baxi’s boilers and its repair service.
Trustpilot
Baxi has a claimed Trustpilot profile with a very large number of reviews. However, those reviews are almost entirely about boiler repairs, servicing, engineer visits and warranty claims rather than heat pumps. Customers often praise punctual, polite engineers, while complaints tend to focus on phone waiting times and booking delays. It’s a useful guide to Baxi’s after-sales service, but it doesn’t tell you much about how the HP60 performs.
Which?
Which? reviews Baxi as a boiler brand, but we couldn’t find a published Which? rating for Baxi heat pumps. If you’re a Which? member, it’s worth checking for updates, as more heat pump data may appear once the HP60 has been in homes for longer.
How Does Baxi Compare?
The closest rivals to the Baxi HP60 are other boiler brands that have moved into heat pumps, particularly Ideal and Vaillant. All three now offer R290 heat pumps with flow temperatures of up to 75°C.
| Brand and model | Refrigerant | Sizes | Max flow temp | Enhanced warranty |
|---|---|---|---|---|
| Baxi HP60 | R290 | 4 to 13kW | 75°C | Up to 7 years |
| Ideal HP290 | R290 | 4.5 to 14kW | 75°C | Up to 5 years |
| Vaillant aroTHERM plus | R290 | 3.5 to 12kW | 75°C | Up to 7 years |
On paper, the Baxi HP60 is very competitive, with slightly higher SCOP figures at 55°C than the Ideal HP290. Vaillant has the longest heat pump track record of the three and a 3.5kW option for very efficient homes. For a closer look, read our Ideal heat pump review and Vaillant heat pump review.
Is a Baxi Heat Pump Right for You?
A Baxi HP60 is a strong fit if you want a high-temperature R290 heat pump from a name you already know. Here’s a quick way to decide.
Choose Baxi If…
- You live in an older home and want to keep as many existing radiators as possible
- You’d like a quiet unit, with sound pressure from 40 dB(A) at 1m
- You value a familiar brand with a large UK service network
- You’re happy to register the unit to get up to seven years of warranty cover
- You want built-in energy monitoring so you can track performance
Don’t Choose Baxi If…
- You want a heat pump with many years of proven real-world performance data
- Your outdoor space is very tight, as R290 units need more clearance
- You need a unit smaller than 4kW for a very low heat loss home
If you’ve had a Baxi boiler for years, you may already know the brand well. Our guide to Baxi boiler error codes is a handy reference if you’re keeping your current boiler running until you switch.
Get a Free Heat Pump Quote From The Edinburgh Boiler Company
We’re one of Scotland’s leading MCS-certified heat pump installers, fitting air source heat pumps across Edinburgh, Musselburgh, Dalkeith, Penicuik, Livingston, Bathgate, Linlithgow, Falkirk, Stirling, Dunfermline, Kirkcaldy, Perth, Glasgow and the Borders.
We’ll carry out a full heat loss survey, recommend the right size and model for your home, and help with your Home Energy Scotland grant and Warm Homes loan. Your quote is fixed after the survey, so you’ll know exactly what you’re paying.
Book your free heat pump survey or find out more about our heat pump installation service.
Baxi Heat Pump FAQs
Are Baxi heat pumps any good?
Yes. The Baxi HP60 has strong specs, including a SCOP of up to 5.34, 75°C flow at -10°C and A+++ ratings at 55°C on the 4kW to 8kW models. It’s a good all-round choice, though it’s newer to the market than some specialist brands.
Will I need new radiators with a Baxi heat pump?
Not always. Because the HP60 can run at higher flow temperatures, many homes can keep some or most of their radiators, though a few may need upgrading to run efficiently. We’ll check every room during the survey. Our guide on replacing radiators for a heat pump explains more.
What refrigerant does the Baxi HP60 use?
The HP60 uses R290, also known as propane. It has a global warming potential of just 3, much lower than the 675 of R32, the refrigerant used in the Baxi HP40.
How hot can a Baxi heat pump get?
The HP60 can reach flow temperatures of up to 75°C when it’s -10°C outside. The HP40 reaches up to 65°C. In practice, we design systems to run as cool as possible, because lower flow temperatures mean higher efficiency.
How loud is the Baxi HP60?
Baxi quotes a sound pressure of 40 dB(A) at 1m for the 4kW and 6kW models, rising to 44 dB(A) for the 11kW and 13kW units. That’s quiet for an air source heat pump. Our article on how noisy air source heat pumps are puts these figures in context.
What warranty comes with a Baxi heat pump?
The HP60 comes with a two-year standard warranty, which can be extended to up to seven years if you register it and meet Baxi’s terms and conditions. The HP40 offers up to five years of enhanced cover.
Can a Baxi heat pump work with my existing boiler?
Yes, Baxi says the HP60 can operate alongside a boiler. However, a hybrid setup won’t qualify for the Home Energy Scotland grant, which requires the heat pump to provide all of your heating and hot water.
Is the Baxi HP60 eligible for grants in Scotland?
Yes. When installed by an MCS-certified installer as your main heating and hot water system, it can qualify for a Home Energy Scotland grant of up to £7,500, or £9,000 with the rural uplift, plus optional loans.
