Baxi Boiler Prices in 2026
Baxi gas boilers cost about £741–£1,632 for the boiler alone (inc. VAT, UK merchant prices, Sep 2026); installation is extra; the Energy Saving Trust average replacement is £3,500.

Introduction
Are you looking for boiler prices for Baxi, one of the most popular brands on the market today?
Then you’re in the right place.
In this guide, you’ll discover everything you need to know about Baxi’s boiler prices, including the different models and where you can buy them.
Baxi Overview
Baxi spans back to 1866 and boasts an extensive network of experienced engineers of over 200 skilled professionals. This brand helps heat millions of customers around the UK, with many businesses in their portfolio, including Potterton, Heatrae Sadia, MegaFlo, and Main Heating.
Their products are energy-efficient, with a wide range of heating systems, including combination, system, and heat only boilers. Baxi puts social and economic sustainability at the forefront of their business, which you can see reflected with their affordable heating systems.
Baxi Combination Boiler Prices
Combination boilers are one of the most popular types of boilers on the market today. They are a perfect space-saving solution because you won’t need a cold water tank or a hot water cylinder.
Combination boilers take their water from your main supply, then deliver it to your taps or shower directly. You can often find these boilers in a wide range of power outputs and prices, and they are known to be very energy-efficient and low-cost to run.
Sometimes, you could find a Baxi combination boiler for as low as £624, making them one of the most affordable on the market.
Baxi offers a wide range of models, from lower outputs suitable for one- or two-bedroom homes to those that can heat 5-bedroom homes with 2 or more bathrooms.
| Boiler Name | Power Output | Warranty | Example of Suppliers | Pricing |
|---|---|---|---|---|
| 224 Combination Boiler | 24kW | 3-year warranty | Wolseley, Screwfix | £611.27 – £818.29 |
| 228 Combination Boiler | 28kW | 3-year warranty | Wolseley, Screwfix | £858.11 – £893.99 |
| 630 Combination Boiler | 30kW | 7-year warranty | Wolseley, Screwfix | £1,146.99 – £1,581.24 |
| 636 Combination Boiler | 36kW | 7-year warranty | Wolseley, Screwfix | £1,276.99 £1,393.20 |
| Duo-Tec 40 Combination Boiler | 40kW | 7-year warranty | Wolseley, Screwfix | £1,190.00 – £1,536.98 |
Baxi System Boiler Prices
System boilers utilise the water from your main supply like combination boilers. However, they do require a hot water cylinder.
One of the benefits of this system is that you can use hot water in several locations at the same time. However, once you have used up all the hot water, you’ll need to wait for more to be heated again.
System boilers tend to be slightly more expensive than combination boilers, and you need to consider the price of your cylinder as well. Still, they might be more economically friendly to run than other alternatives.
| Boiler Name | Power Output | Warranty | Example of Suppliers | Pricing |
|---|---|---|---|---|
| MegaFlo 15 System Boiler | 15kW | 7-year warranty | Wolseley, Plumb Nation | £889.64 – £1,134.00 |
| MegaFlo 18 System Boiler | 18kW | 7-year warranty | Wolseley, Plumb Nation | £906.96- £1,178.77 |
| MegaFlo 24 System Boiler | 24kW | 7-year warranty | Wolseley, Plumb Nation | £1010.35 – £1,540.62 |
| MegaFlo 28 System Boiler | 28kW | 7-year warranty | Wolseley, Plumb Nation | £1,048.00 – £1,345.10 |
| MegaFlo 32 System Boiler | 32kW | 7-year warranty | Wolseley, Plumb Nation | £1,078 – £1,241.76 |
Baxi Heat Only Boiler Prices
Heat only or ‘regular’ boilers require both a cold water tank and a hot water cylinder to store the water for your taps and central heating system. This makes this boiler type increasingly less popular, because they require a lot of space and are best suited for larger homes. A smaller home would likely benefit more from a combination boiler that can fit into a kitchen cupboard.
However, heat only boilers tend to be less expensive than system boilers. They can also have the same price as combination boilers, but you need to consider the price of a hot water cylinder and cold water tank.
| Boiler Name | Power Output | Warranty | Example of Suppliers | Pricing |
|---|---|---|---|---|
| Baxi 418 Heat Only Boiler | 18kW | 5-year warranty | Wolseley, Mr Central Heating | £1,093 – £1,115.83 |
| Baxi 415 Heat Only Boiler | 15kW | 5-year warranty | Wolseley, Mr Central Heating | £1,050 – £1,080 |
| Baxi 424 Heat Only Boiler | 24kW | 5-year warranty | Wolseley, Mr Central Heating | £1,016.31 – £1,203.26 |
| Baxi 619 Heat Only Boiler | 19kW | 7-year warranty | Wolseley, City Plumbing Supplies | £1,296 – £1,324.41 |
| Baxi 800 25kW Heat Only Boiler | 25kW | 10-year warranty | Wolseley, City Plumbing Supplies | £1,322.40 – £1,441.19 |
FAQs
What boilers does Baxi offer?
Baxi offers a wide variety of boilers both domestically and commercially, including combination, system, and regular boilers. These boilers come in flexible power outputs, from 12kW boilers for one-bedroom flats to 30kW+ boilers for three- or four-bedroom homes.
Each model also comes with an energy efficiency rating and a 5- to 7-year warranty, which can be extended to 10 years. Some of their boilers, such as the Baxi 600 Combination series, is endorsed by the Energy Saving Trust and are Boiler Plus compliant.
What are the benefits of choosing Baxi for your boilers?
Here are some of the notable advantages of owning a Baxi boiler:
- ✔ Long warranties
- ✔ Highly efficient
- ✔ Affordable
- ✔ A wide variety of models
- ✔ Compatible accessories and parts
Which Baxi boiler is the best fit for your home?
The best Baxi boiler for you might depend on many different factors, including boiler type.
Combination Boilers
- ✔ Best suited for when there’s less space
- ✔ Suitable for homes with one bathroom
- ✔ An excellent choice for new buildings
- ✔ Cost less than alternative options
- ✔ Energy-efficient
- ✔ Compact size
System Boilers
- ✔ For homes with more than one bathroom
- ✔ High hot water requirements
- ✔ Stores water in a hot water cylinder for use later
- ✔ An excellent option when there’s a lot of spare space
- ✔ Hot water in multiple locations
Regular Boilers
- ✔ Best suited for larger homes
- ✔ High hot water requirements
- ✔ Have a powerful capacity up to 40kW
- ✔ Requires a lot of space as you need a cold water tank and hot water cylinder
- ✔ Less expensive to buy and install
- ✔ Compatible with renewable energy sources, such as solar power
Which Baxi boiler is the cheapest?
One of the cheapest Baxi model is the 224 Combination Boiler, which can cost you £818.29.
On the other hand, one of the most expensive models is the Duo-Tec 40 Combination Boiler, which could cost you approximately £1,536.98.
How long do Baxi boilers last?
Typically, a Baxi boiler could last as long as 15 years, but you should try and have your boiler serviced annually to extend its lifecycle.
How do I get in touch with Baxi?
Here’s how you can get hold of Baxi support.
- Call 0330 678 0917 for customer support and maintenance
- Fill out the contact form
Conclusion
Baxi offers a wide range of boilers at different price points, which means that there is a boiler for every budget.
Do you want to find out more about boilers or get a custom quote?
Fill out the form at the top of the page, or you can take a look at the guides on this site.





