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Potterton Boilers

Potterton knows a thing or two about boilers, having manufactured their reliable and efficient systems since 1850. Potterton joined the Baxi heating group in 2000 and have created efficient and affordable units since.

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Our Gas Safe Registered engineers are expert installers and will be able to advise you on any repairs & upgrades. Whether you’re looking for a replacement system or need a technical fault fixed, our local teams are always here to help.

You could join over seven million customers across the UK who have had a Potterton installed.

What is the most popular Potterton boiler?

Potterton Assure 36KW

From only



NO deposit from


Per month 6.9% APR Representative*

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Your boiler package includes

  • 36kw Combi boiler
  • 5 Year warranty
  • Compact fit means it can be installed discreetly
  • Energy Saving Trust endorsed product
  • Neomitis Wireless 7 Day Programmable Digital Thermostat
*Representative Example  
Item value (Cash price) £2,219
Deposit £0
Total amount of credit £2,219
Agreement duration 120 months
Annual rate of interest 6.9% P.A
Representative APR 6.9% APR
120 monthly payments £25.41
Total amount payable £3049.49

Who can apply for finance

  • Applicant must be 18 years or older on application date
  • In permanent UK residence for a minimum of 3 years

Fulfil one of the following employment criteria:

  • In regular, permanent employment (for a minimum of 16 hours a week)
  • Retired from regular employment
    Not working through disability
  • Self employed

The approval of your application depends on your financial circumstances and borrowing history.

What is the Potterton boiler warranty?

All of our Potterton's come with a fantastic five-year warranty.

We guarantee a FULL manufacturer-backed warranty which will cover you for all labour, call-outs, and parts.

Warranty & Aftercare

System types

Potterton manufacture combi, regular and system boilers. While combi's are ideal for smaller homes, system boilers can cope with higher demands. While regular units are most common in older properties.

At Boiler Plan, we currently supply the following Potterton combi and regular systems:

  • Potterton Assure 36kW combi
  • Potterton Assure 19kW regular
  • Potterton Assure 25kW regular
Potterton Assure 36 kW affordable combi boiler

Potterton Assure 30 kW

The Potterton Assure combi is an efficient and durable choice.  It uses the right amount of fuel to meet the set central heating and water temperatures - saving you money on your fuel bills.

Get your Potterton installed by Boiler Plan with a free 5-year manufacturer-backed warranty on all parts, labour and call-outs. 

  • Hot water flow rate: 12.2
  • Central heating output: 30 - 36kW
  • Warranty duration: 5 years
  • Dimensions: 700 x 390 x 285
Potterton Assure 25kW affordable Heat Only boiler

Potterton Assure 18kw & 25kw Heat Only

The Potterton Assure heat only system is an efficient and durable choice.  This wall-mounted unit is said to be one of the lightest on the UK market, weighing at just 19.5kg.  Despite its’ lightweight and compact size, it's incredibly strong and reliable with good heating outputs.

Get your Potterton installed by Boiler Plan with a free 5-year manufacturer-backed warranty on all parts, labour and call-outs. 

  • Central heating output: 18 - 25kW
  • Warranty duration: 5 years
  • Dimensions: 700 x 390 x 285

Common problems

Sometimes boilers have issues, we all have our off days. So, we’re here to let you know a list of common problems that you can fix at home or can be sorted by one of our gas safe engineers quickly.

  • Radiators failing to reach temperature – this could be the result of too much air in the heating system.
  • Low pressure – characterised by an E119 error code, this could be an indicator of a leak in the system. Low pressure can also be seen on the pressure gauge, with the needle pointing to a value of less than 1. A value of 1.5 is ideal.
  • No hot water – if your taps are running cold, this could be a fault in the diverter valve.
  • Frozen condensate pipe – if your system displays an E133 error code, this could indicate a frozen condensate pipe. These pipes run outside and risk freezing in winter, causing lockouts.
  • Boiler keeps turning off – this may be caused by many issues, including low water pressure, thermostat problems, or a lack of water flow
Potterton affordable repair combi heat only combi boiler


If your home doesn’t feel warm enough, you may be able to remove the excess air by bleeding your radiators. Likewise, you can thaw a frozen condensate pipe without having to call an engineer, and may be able to adjust pressure manually.

Component issues, such as a faulty diverter valve or thermostat issue, must be dealt with by a Gas Safe Registered specialist.

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