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Baxi Boilers

Based in the West Midlands, Baxi have been producing award-winning gas combi boilers in the UK since 1866.

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Our skilled local teams are highly trained in the installation, repair and maintenance of the Baxi boiler range. We would be happy to advise you on the best boiler for your home and the best maintenance package from our current Baxi selection.

The company’s’ ethos of pride, together with its’ reliability and innovation, have resulted in Baxi producing some of the best boilers on the market.

What is the most popular Baxi boiler?

Baxi Assure 36kw combi

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 £3,049.49

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 warranty for a Baxi boiler?

Our Baxi range of boilers comes with a huge up to 10-year warranty on all eligible boilers.

When you buy a Baxi boiler from us, we guarantee a FULL manufacturer-backed warranty which will cover you for all labour, call-outs, and parts.

Warranty & Aftercare

System types

Baxi currently manufacture combi, system and regular boilers. While a combi boiler may be suited to a smaller home, heating water as it runs, system boilers are the more efficient choice for larger properties. Likewise, regular boilers are best suited in larger homes.

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

  • Baxi Assure 36kW combi
  • Baxi Platinum 33kW combi
  • Baxi Assure 19kW regular
  • Baxi Assure 25kW regular
Baxi Platinum 33kW affordable combi boiler

Baxi Platinum 33kW

Both reliable and easy to install. The Baxi Platinum Combi is a firm favourite with householders and installers alike. This boiler fits easily into most cupboards and has easy to use controls. It also meets the minimum energy efficiency required for a 'Boiler Plus' compliance.

This highly efficient boiler gets you a free 10-year warranty on all parts, labour and call-outs with Boiler Plan.

  • Hot water flow rate: 13.5
  • Central heating output: 33kW
  • Warranty duration: 10 years
  • Dimensions: 780 x 450 x 345
Potterton Assure 36 kW affordable combi boiler

Baxi Assure 36kW

The Baxi 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 Baxi 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

Baxi Assure 18kw & 25kw Heat Only

The Baxi 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 Baxi 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 know a list of common problems that you can fix at home or can be sorted by one of our gas safe engineers quickly.

  • Frozen condensate pipe – characterised by an E133 or E28 error, this usually occurs in winter due to the condensate pipe running into an exterior drain.
  • Low boiler pressure – all boilers lose pressure over time, but a leak may cause a sudden drop.
  • Water leak – this may be caused by a broken internal component, the pressure valve, or the pump seal.
  • Ignition failure – this is the result of a boiler lockout, caused by overheating (110 error), fan faults (160 error), flue overheating (E131 error), or a PCB (E168) error.
  • No hot water – this may be caused by a worn, faulty or stuck diverter valve.
  • Broken burner – loud noises could indicate a broken burner. A 128-error code may also display.
Baxi affordable repair combi heat only combi boiler


For frozen condensate pipes, you might not have to call an engineer. See our ​how to thaw a frozen condensate pipe right here. yourself, or give us a call if you’re not sure.

A Gas Safe Registered engineer will be able to fix all component errors and can advise you on how to adjust the water pressure.

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