Facebook pixel
new boiler

Get a new boiler

Fixed price boilers, next day

See boiler prices
new air conditioning

Air Conditioning

Get a quote
new heat pump

Heat Pumps

Coming soon

new ev charger

EV Chargers

Get a quote
boiler servicing

Boiler Servicing

Get a quote

Last updated: 28th March, 2024


Potterton Boiler Range (UK Combi Guide)

Potterton Boiler Range (UK Combi Guide)

Key takeaways

  • Potterton was founded in 1850 and is now owned by boiler industry titan - Baxi.
  • Potterton combi boilers are energy efficient, space saving and user friendly.
  • Heating is easy with a Potterton combi, advanced controls allow for easy temperature adjustment.

Potterton are a brand with a celebrated lineage of expertise when it comes to heating, Potterton boilers today represent some of the best on the market.

In this blog we’ll be taking a look at the Potterton brand and in particular their combi boiler range.

Need a new boiler?

Get a quote in 60 seconds, fitted as fast as next day!
0% APR finance available.

Get a quote

Who Are Potterton?

Potterton was founded in 1850 and quickly gained a reputation for quality and innovation. 

In the 1930s, Potterton introduced the first gas-fired boiler with a permanent pilot light, which greatly improved safety and convenience.

In the 1990s, Potterton became part of the Baxi Group, which is one of the largest boiler manufacturers in Europe.

Today, Potterton is known for its high-quality boilers, which are designed and manufactured in the UK. The company offers a wide range of models to suit different needs and budgets, and is committed to using the latest technology to improve energy efficiency and reduce emissions. 


Combi Boilers Explained

Before we dive into the complexities of combis, if you aren’t completely sure what one is, don’t worry, allow us to explain.

A combi (combination) boiler is a type of domestic boiler that ‘combines’ a home’s central heating and hot water production into one succinct unit.

A combi takes water directly from the mains and heats it upon usage. After detecting a hot water request, the combi begins to burn gas in a combustion chamber. 

The hot gases rise and move through a series of pipes and into a component called a heat exchanger, the hot gas running through the exchanger then heats the surrounding cold water.

In a conventional boiler system, this process is done according to a programme and the water is stored in a separate cylinder until it’s needed. 

A combi only starts this cycle upon request (initiating the heating or turning on a hot water outlet), therefore the hot water is almost instant.

Best Potterton Combi Boilers

Potterton Promax Combi

Technical specification

Size outputs

24kW, 28kW, 33kW

Efficiency class



89%, 88.9% (33)

Flow rate - L/Min

9.8, 11.5, 13.5


780 mm (H) 345 mm (D) 480 mm (W)

Key Features

  • Compatible with Multifit GasSaver

  • Pre plumbing Jig

  • Robust hydraulic connections

  • Optional outdoor weather sensor

  • Filling loop included in box

Potterton Promax Ultra Combi

Technical Specification

Size outputs

24kW, 28kW, 33kW, 38kW

Efficiency class




Flow rate - L/Min

10.9, 12.9, 15.3, 18.3


763 mm (H) 355 mm (D) 450 mm (W)

Key features

  • Service due indicator

  • OptIonal stand off bracket

  • Pre plumbing Jig

  • LPG and Mains ready

  • Optional outdoor weather sensor

Potterton Titanium Combi Boiler

Technical specification

Size outputs

24kW, 28kW, 33kW, 40kW

Efficiency class



88.6% (24,28), 88.5% (33,40)

Flow rate - L/Min

9.8, 11.5, 13.5, 16.4


780 mm (H) 345 mm (D) 450 mm (W)

Key features

  • Endorsed by Energy Saving Trust

  • 24hr clock and filling loop supplied as standard

  • Wall mounted plate

  • Extensive flue options

Potterton Gold Combi Boiler

Technical Specification

Size outputs

24kW, 28kW, 33kW, 28kW LPG

Efficiency class



88.6% (24,28), 88.5% (33), 90.6% (28 LPG)

Flow rate - L/Min

9.8, 11.5, 13.5, 11.5


780 mm (H) 345mm (D) 450 mm (W)

Key features

  • Fully modulating

  • Energy Saving Trust endorsed

  • Flue options up to 20m

  • Filling loop and internal clock supplied as standard

Potterton combi boiler benefits

Potterton combi boilers offer several benefits, including:

Space-saving design

A combi boiler combines both a central heating boiler and a hot water cylinder into a single unit, which means it takes up less space than a traditional system.


Potterton combi boilers are designed to be highly efficient, which can result in lower energy bills and reduced carbon emissions.

Instant hot water

With a Potterton combi boiler, you can enjoy hot water on demand, without having to wait for a hot water cylinder to heat up.


Consistent heating

The Potterton combi boiler can provide a constant supply of hot water and heating, ensuring that your home is always comfortable.

Easy installation

Combi boilers are typically easier to install than traditional systems, which means that you can get your new heating system up and running quickly.

User-friendly controls

Potterton combi boilers typically come with easy-to-use controls that allow you to adjust the temperature and settings to meet your specific needs.


While there are some cons to owning a combi if you occupy a very large property with several bathrooms, in the vast majority of cases a modern combi boiler will be extremely advantageous.

Not only will a combi perfectly heat your home, but it will also start to save you money due to its efficient performance ensuring you will be less frivolous when it comes to heating bills.

Combi boilers are manufactured by the most trusted and celebrated heating brands and are available in a range of kW sizes, meaning you never have to sacrifice on home heating, no matter your budget or heating demands.

If you think a modern, efficient combi heating system is ideal for your home, contact us today for a Gas Safe registered installation as fast as the next day!

Get a quote

Frequently Asked Questions

What Happened to Potterton Boilers?

Potterton is a well-established boiler brand with a history dating back over 150 years. As of my last update in April 2023, Potterton was part of Baxi Heating UK, which itself is part of the BDR Thermea Group, a leading manufacturer of smart thermal comfort solutions with a presence in over 100 countries. Potterton has continued to produce boilers, focusing on reliability, efficiency, and innovation, although their range and market focus may evolve over time to meet current heating demands and regulations.

How Good are Potterton Boilers?

Potterton boilers are generally well-regarded for their reliability, durability, and efficiency. They have been a popular choice among UK homeowners and installers for many years, known for offering a solid performance at a competitive price point. Potterton's range includes options suited for a variety of homes, from compact combi boilers to larger heat-only and system boilers.

Do They Still Make Potterton Boilers?

Yes, as of my last update, Potterton continued to manufacture boilers. The brand focuses on meeting the needs of both residential and commercial markets, offering a range of energy-efficient and reliable heating solutions. However, their latest offerings and the focus of their product line might have evolved to align with current market demands and energy efficiency standards.

What is the Life of a Potterton Boiler?

The lifespan of a Potterton boiler, like any boiler, depends on various factors including the model, installation quality, usage patterns, and maintenance. Generally, a well-maintained Potterton boiler could be expected to last between 10 to 15 years, although many can operate efficiently beyond this with proper care and servicing.

Should I Replace a 20-Year-Old Boiler?

Yes, replacing a 20-year-old boiler can be a wise decision. Modern boilers are significantly more energy-efficient, which can lead to substantial savings on your heating bills and reduce your carbon footprint. Older boilers are also more likely to experience breakdowns and may not meet current safety and efficiency standards.

Should a 40-Year-Old Boiler Be Replaced?

Absolutely, a 40-year-old boiler should be replaced. Boilers of this age are far less efficient than modern units and are more prone to breakdowns, safety issues, and parts may no longer be readily available. Upgrading to a new boiler can improve safety, efficiency, and the overall comfort of your home, in addition to potentially increasing property value.

Stephen Day profile photo
Article by
Stephen Day | Co-founder
Gas Safe registered and FGAS certified engineer with over 20 years experience in the heating and cooling industry.