Potterton boilers have a long-standing reputation in the UK’s heating market. Known for their historical significance and product variety, Potterton offers a range of boilers suited to different domestic needs, including combi, regular, and system boilers. This article provides an in-depth review of Potterton boilers, covering prices, product ranges, error codes, and comparisons with other brands to help you make an informed decision.
Founded in 1850, Potterton initially focused on industrial applications, transitioning to residential boilers in 1902 with the launch of the Victor boiler. In 1955, Potterton introduced the Diplomat, the UK’s first gas boiler, revolutionizing the heating industry. The company further cemented its status as an innovator by releasing the first wall-hung boiler in 1970. Today, Potterton operates under Baxi Group, offering both premium and value-range boilers.
Table of Contents
1. History of Potterton
2. Overview of Potterton Boilers
Potterton provides three main boiler types to suit different property sizes and water demands:
- Combi Boilers: Space-saving boilers that provide instant heating and hot water.
- Regular Boilers: Conventional systems requiring additional tanks and suitable for properties with higher water demands.
- System Boilers: Designed for homes with multiple bathrooms, featuring an integrated pump for efficient hot water delivery.

3. Potterton Combi Boilers and Pricing
Combi boilers are widely used in the UK due to their efficiency and space-saving design. They eliminate the need for a water storage tank, making them ideal for smaller homes. Potterton’s popular combi boiler models include:
- Potterton Titanium Combi
- Potterton Gold Combi
- Potterton Promax Ultra Combi
Price Range: £845 – £2,000
These prices reflect the standalone unit and exclude installation. Remember, Gas Safe installation is mandatory by law. A valid installation also ensures the warranty remains intact.
4. Potterton Regular Boilers and Pricing
Regular boilers, also known as conventional boilers, are recommended for larger properties with high water consumption. They require a storage cylinder and header tank, making installation more complex.
Popular Potterton regular boilers include:
- Potterton Promax SL Heat Regular
- Potterton Titanium Regular
- Potterton Assure Heat Regular
Price Range: £670 – £2,000
While regular boilers are bulkier, they maintain water pressure across multiple outlets and are suitable for homes with multiple bathrooms.
5. Potterton System Boilers and Pricing
System boilers operate similarly to regular boilers but feature integrated components, such as a water pump, eliminating the need for a loft tank. They are perfect for properties with high hot water demands.
Top Potterton system boilers include:
- Potterton Promax System
- Potterton Ultra System
- Potterton Gold System
Price Range: £635 – £1,900
Note that the listed prices cover only the boiler unit, with installation, controls, and additional parts sold separately.
Read about: Potterton Boiler Error Codes / Fault Codes

6. Warranty Period and Aftercare
Potterton boilers offer varying warranty periods depending on the model and installation service. Warranties range from 1 to 10 years, with some covering both parts and labor. The Potterton Titanium Combi comes with a 5-year warranty, while the Potterton Gold has a 2-year warranty.
While Potterton’s warranty terms are reasonable, other brands, such as Worcester Bosch, offer longer warranties. For example, Worcester Bosch offers 10 years of guaranteed service when purchased through LETsheat.
7. Customer Reviews and Feedback
Potterton boilers have mixed customer reviews. On Trustpilot, the brand’s residential division holds an average rating of 2.6 out of 5 stars, reflecting limited feedback. Although Potterton was previously recognized with a Which? Best Buy Award (2006–2010), newer models have yet to achieve similar recognition.
8. Common Error Codes and Troubleshooting
Like all boilers, Potterton systems may display error codes to signal malfunctions. These codes help identify the issue, guiding DIY fixes or aiding engineers in diagnosis.
Error Code | Cause | Solution |
---|---|---|
E09 | Gas valve wiring fault | Contact a Gas Safe engineer |
E15 | Gas valve connection fault | Check wiring; restart boiler |
E20 | Heating sensor fault | Replace thermistor |
E28 | Flue thermistor fault | Inspect and clear the flue |
E117 | High system pressure | Release pressure via radiator |
E118/E119 | Low system pressure | Refill using filling loop |
E133 | Ignition failure | Check gas supply; reset boiler |
E160/E161 | Fan malfunction | Replace fan if needed |
E384 | Flame detected when off | Restart boiler; contact engineer |
Tip: Regular maintenance and annual servicing help prevent most issues. Neglecting these may void the warranty and result in costly repairs.
9. Why Choose Potterton Boilers?
Potterton offers a wide range of models to meet various needs, making them a good fit for homeowners seeking affordable solutions. However, given the mixed reviews and limited warranty coverage, exploring other brands like Worcester Bosch or Viessmann may be beneficial.
Read about: Best Potterton boilers in london uk

10. Comparing Potterton to Other Brands
Potterton faces tough competition in the UK market. Brands like Worcester Bosch consistently rank higher due to superior customer service, build quality, and part availability. Worcester Bosch offers a 10-year guarantee (via LETsheat), which provides more security than Potterton’s standard warranties.
If long-term reliability, high performance, and excellent aftercare are priorities, Worcester Bosch and Viessmann might be better alternatives.
11. Conclusion: Potterton Boiler Verdict
Potterton remains a respected name in the UK heating market with a broad selection of combi, regular, and system boilers. Their models cover different budgets and property types, offering efficient solutions for many households. However, given customer feedback and warranty limitations, it may be worth considering competitors with higher ratings and better guarantees.
If you’re planning a boiler replacement soon, LETsheat provides quick installation services, competitive pricing, and extended guarantees. With the option for next-day installation and flexible payment plans, LETsheat ensures your home stays warm and comfortable throughout the year.
Get a New Boiler with LETsheat
If you need a new boiler, LETsheat offers competitive prices and professional installation. Here’s what sets them apart:
- Gas Safe-certified installation within 24 hours.
- 4.9-star Trustpilot rating, exceeding the market standard.
- Price match guarantee—find a cheaper quote, and they’ll match it.
- Flexible financing, including interest-free options.
- Up to 12-year guarantee on select models.
Get your instant fixed quote with LETsheat using their online calculator today!
Read about: Potterton Boiler Troubleshooting: Common Faults and Costs to Fix

By streamlining your options and focusing on key factors like price, reliability, and aftercare, this guide helps you decide whether a Potterton boiler fits your needs or if you should explore other brands.
Read about: Potterton Boiler Error Codes / Fault Codes
FAQs
What are the different types of Potterton boilers available, and which one is right for me?
Potterton offers a range of boilers, including combination (combi), system, and heat-only boilers. The best type for you depends on your home’s specific needs, such as the number of bathrooms, hot water demand, and existing plumbing system. A combi boiler is a popular choice for smaller homes, while system and heat-only boilers are better suited for larger properties with higher hot water demands.
How much does a Potterton boiler cost, including installation?
The cost of a Potterton boiler varies depending on the model, size, and type. Prices typically range from £600 to £2,000 for the boiler itself. Installation costs can add significantly to the overall price, so it’s important to get quotes from multiple installers to compare prices.
3. What are the key features and benefits of Potterton boilers?
Potterton boilers are known for their reliability, efficiency, and quiet operation. Key features include:
High efficiency ratings to save on energy costs
Compact design for easy installation
Quiet operation
Long warranties