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Baxi Boilers, Heating Products & Spare Parts
Discover Baxi at Plumbco, one of the UK's well-known heating brands, with a long history of manufacturing boilers and heating solutions. With a focus on innovation, energy efficiency and reliable home heating, Baxi offers products designed to meet the needs of homeowners, heating engineers and installers.
From efficient gas boilers and heating controls to replacement components and essential boiler spares, Baxi provides a wide range of products for domestic heating systems. Whether you're maintaining an existing installation, replacing a component or sourcing parts for a heating project, explore our selection of Baxi products at Plumbco.
At Plumbco, we stock a selection of Baxi boiler spares and heating components to help keep compatible systems operating reliably. Browse our available Baxi products online and find the parts you need.
Baxi Electrode Complete Set
7216299
This genuine Baxi Main electrode set (7216299) is designed for use with Main Eco, EcoBlue and Heat boilers. A complete replacement ignition and flame sensing electrode kit, it helps maintain reliable boiler ignition and efficient heating performance. Ideal for boiler servicing, repairs and heating engineers.
£42.26 incl tax
Baxi Fan Assembly 720011701 – Boiler Replacement Part
720011701
The Baxi 720011701 Fan Assembly is a replacement combustion fan designed for a range of compatible Baxi domestic boilers.
The fan plays an important role in the boiler's combustion process by supplying fresh air to the combustion chamber and helping to expel combustion gases through the flue. It also forms part of the boiler's safety system, with the boiler designed to prevent burner operation if the fan is not operating correctly.
Suitable for selected Baxi HE, HE A, ErP and Promax boiler models, this replacement fan is intended for professional boiler servicing and repair.
The fan plays an important role in the boiler's combustion process by supplying fresh air to the combustion chamber and helping to expel combustion gases through the flue. It also forms part of the boiler's safety system, with the boiler designed to prevent burner operation if the fan is not operating correctly.
Suitable for selected Baxi HE, HE A, ErP and Promax boiler models, this replacement fan is intended for professional boiler servicing and repair.
£171.15 incl tax
Baxi Fan Assembly for HE Boilers – 5112430
5112430
The Baxi 5112430 Fan Assembly is a replacement boiler component designed to support the safe and efficient operation of compatible high-efficiency (HE) boilers.
The fan plays an important role in the boiler's combustion process by supplying air to the combustion chamber and helping remove combustion gases through the flue system. The boiler's safety controls monitor fan operation to ensure the appliance operates correctly.
This genuine Baxi replacement fan assembly is suitable for a range of compatible Baxi, Main and Potterton boiler models.
The fan plays an important role in the boiler's combustion process by supplying air to the combustion chamber and helping remove combustion gases through the flue system. The boiler's safety controls monitor fan operation to ensure the appliance operates correctly.
This genuine Baxi replacement fan assembly is suitable for a range of compatible Baxi, Main and Potterton boiler models.
£126.13 incl tax
Baxi Pcb Board (105HE)
248731
The Baxi 248731 Printed Circuit Board is a genuine replacement boiler PCB designed for compatible Baxi Combi Instant and Potterton Performa boilers. The PCB acts as the boiler’s central control board, managing key heating system functions via connected sensors, thermostats and switches.
£227.90 incl tax
Baxi Plate Heat Exchanger
247224
Genuine Baxi 247224 Plate Heat Exchanger Kit for compatible Baxi Combi HE boilers. A replacement boiler spare designed to transfer heat efficiently between the primary heating and domestic hot water systems, helping restore reliable hot water performance.
£243.52 incl tax
Baxi Pressure Relief Valve
248056
The Baxi Pressure Relief Valve (248056) is essential for maintaining safe pressure levels within your heating system. Designed to open proportionally as pressure increases, it prevents pressure buildup and protects your system from potential damage. A vital component for system safety and longevity.
£8.00 incl tax
Baxi Printed Circuit Board
720878202
Genuine Baxi 720878202 Printed Circuit Board (PCB) for compatible combi and system boilers. This boiler control board manages key appliance functions and is suitable for selected Baxi Duo-Tec 2, Megaflo 2, Neta-Tec and Baxi 100 models.
£242.72 incl tax
Baxi Printed Circuit Board
248075
Genuine Baxi 248075 Printed Circuit Board (PCB), designed as a replacement control board for compatible Baxi, Main and Potterton boilers. The PCB acts as the boiler's control centre, monitoring and managing key heating functions, sensors, thermostats and safety systems. Suitable for selected Combi 80 Eco, Performa 24 and Combi 24 models.
£208.72 incl tax
Baxi Rigid Filling Loop 720808301
720808301
The Baxi CQI rigid filling loop 720808301 is a genuine Baxi boiler accessory designed for safe and reliable system pressure topping up. Compatible with Baxi 800 Range, Duo-tec, Main Eco and other ErP boilers.
£90.77 incl tax
Baxi Spare Fan Assembly Kit for Solo 30 to 60 Boilers – 229421
229421
The Baxi 229421 Spare Fan Assembly Kit is a replacement boiler component designed for compatible Baxi Solo 2 boiler models. The fan plays an essential role in the boiler's combustion process by supplying air to the combustion chamber and helping remove combustion gases through the flue.
The boiler's safety controls rely on the fan operating correctly to ensure safe combustion. Replacing a faulty fan assembly with the correct compatible part is therefore important for maintaining reliable boiler operation.
This replacement kit also includes a 75ml tube of silicone adhesive sealant, providing an additional component for the installation.
Suitable for selected Baxi Solo 2 models, including Solo 2 30 PF, 40 PF, 50 PF Guinness Trust, 60 PF, 70 PF and 80 PF.
The boiler's safety controls rely on the fan operating correctly to ensure safe combustion. Replacing a faulty fan assembly with the correct compatible part is therefore important for maintaining reliable boiler operation.
This replacement kit also includes a 75ml tube of silicone adhesive sealant, providing an additional component for the installation.
Suitable for selected Baxi Solo 2 models, including Solo 2 30 PF, 40 PF, 50 PF Guinness Trust, 60 PF, 70 PF and 80 PF.
£249.65 incl tax
Baxi/Potterton Standard Horizontal Flue Kit (Compatable With 200, 400 & 800 Range) 7222019
7222019
The Baxi/Main/Pott Standard Horizontal Flue inc Elbow (stock code 7222019) is a genuine multi‑fit 60/100 horizontal boiler flue kit with a low‑profile elbow and fixings, ideal for domestic boiler wall installations. Suitable for use with compatible Baxi, Main and Potterton boilers, this robust flue system offers quick push‑fit connections and reliable combustion gas discharge for efficient heating setups.
£127.02 incl tax
Compatible Baxi Flow Switch 242459 – Replacement for Obsolete Part
242459
The Compatible Flow Switch 242459 is an aftermarket replacement designed for selected Baxi, Main and Potterton boiler models. It replaces the obsolete original part number 242459.
The flow switch monitors water movement within the boiler, helping the appliance recognise hot water demand and respond accordingly. A faulty flow switch can affect the boiler's ability to detect water flow, potentially causing problems with hot water operation.
This replacement offers a solution for compatible boilers where the original component is no longer available. Please check your existing part number, boiler model and GC number carefully before ordering.
The flow switch monitors water movement within the boiler, helping the appliance recognise hot water demand and respond accordingly. A faulty flow switch can affect the boiler's ability to detect water flow, potentially causing problems with hot water operation.
This replacement offers a solution for compatible boilers where the original component is no longer available. Please check your existing part number, boiler model and GC number carefully before ordering.
£63.38 incl tax
Baxi Silver Fan Assembly 248001 – Boiler Replacement Spare
248001
The Baxi 248001 Silver Fan Assembly is a replacement boiler component designed for selected Baxi gas boiler models. The fan plays an essential role in the combustion process by supplying fresh air to the combustion chamber and helping remove combustion gases through the flue.
The boiler's safety controls rely on the fan operating correctly to ensure the correct combustion sequence. A faulty fan can prevent the boiler from operating safely, making the correct replacement component essential when carrying out compatible boiler repairs.
Finished in silver, this replacement fan assembly is suitable for a range of Baxi Combi, System and Performa boilers.
Always check your existing component part number and boiler model before ordering to ensure compatibility.
The boiler's safety controls rely on the fan operating correctly to ensure the correct combustion sequence. A faulty fan can prevent the boiler from operating safely, making the correct replacement component essential when carrying out compatible boiler repairs.
Finished in silver, this replacement fan assembly is suitable for a range of Baxi Combi, System and Performa boilers.
Always check your existing component part number and boiler model before ordering to ensure compatibility.
£150.30 incl tax
Baxi 245122 Full Gas Valve – Honeywell Replacement Boiler Spare
245122
The Baxi 245122 Full Gas Valve is a replacement boiler component responsible for regulating the supply of gas to the burner during boiler operation.
Controlled by the boiler's printed circuit board (PCB), the gas valve opens and regulates gas flow when required, helping ensure the correct amount of gas is delivered to the burner. It plays an essential role in the boiler's combustion process and safe operation.
Manufactured by Honeywell for Baxi, this full gas valve is supplied under Baxi part number 245122 and is intended for compatible boiler applications.
Always check the existing component part number and boiler model before ordering to ensure the correct replacement is selected.
Controlled by the boiler's printed circuit board (PCB), the gas valve opens and regulates gas flow when required, helping ensure the correct amount of gas is delivered to the burner. It plays an essential role in the boiler's combustion process and safe operation.
Manufactured by Honeywell for Baxi, this full gas valve is supplied under Baxi part number 245122 and is intended for compatible boiler applications.
Always check the existing component part number and boiler model before ordering to ensure the correct replacement is selected.
£163.54 incl tax
Baxi Multifunctional Gas Valve for Solo HE – 241900
241900
The Baxi 241900 Multifunctional Valve is a replacement gas control component designed for selected Baxi, Main and Potterton boiler models. It regulates the supply of gas to the burner during boiler operation, helping maintain the correct gas flow for the combustion process.
Controlled by the boiler's printed circuit board (PCB), the valve opens when the burner requires gas, allowing the appropriate supply to pass through to the burner assembly.
Suitable for selected Baxi HE and Solo HE, Main HE and Potterton Promax HE Plus boiler ranges, this replacement component is an important part of the boiler's gas control system.
Always check the existing part number and exact boiler model before ordering to ensure compatibility.
Controlled by the boiler's printed circuit board (PCB), the valve opens when the burner requires gas, allowing the appropriate supply to pass through to the burner assembly.
Suitable for selected Baxi HE and Solo HE, Main HE and Potterton Promax HE Plus boiler ranges, this replacement component is an important part of the boiler's gas control system.
Always check the existing part number and exact boiler model before ordering to ensure compatibility.
£190.11 incl tax
Baxi SIT Nova Gas Valve for Solo WM Boiler – 229418
229418
The Baxi 229418 SIT Nova Gas Valve is a replacement boiler component designed for the Baxi Solo WM boiler. It regulates the supply of gas to the burner, helping ensure the correct amount of gas is delivered during the boiler's operation.
Controlled by the boiler's printed circuit board (PCB), the gas valve receives signals when gas is required and opens to allow gas to flow through to the burner or pilot assembly.
Supplied complete with its connecting wire, this replacement gas valve is intended for compatible Baxi Solo WM boiler installations.
Always check the existing component part number and exact boiler model before ordering to ensure compatibility.
Controlled by the boiler's printed circuit board (PCB), the gas valve receives signals when gas is required and opens to allow gas to flow through to the burner or pilot assembly.
Supplied complete with its connecting wire, this replacement gas valve is intended for compatible Baxi Solo WM boiler installations.
Always check the existing component part number and exact boiler model before ordering to ensure compatibility.
£156.03 incl tax
Baxi Hydraulic Inlet Assembly with Bypass 5114710
5114710
The Baxi 5114710 Hydraulic Inlet Assembly is a replacement boiler component designed for selected Baxi, Main and Potterton boiler models. This assembly forms part of the boiler's hydraulic system, managing the incoming water supply and supporting the circulation of water through the appliance.
Supplied with an integrated bypass, this hydraulic inlet assembly is specified for compatible Baxi Duo-tec and Eco boiler models, including the 28 HE, 33 HE and 30 Eco variants.
An important replacement component for compatible boiler servicing and repairs, this assembly should be checked against the existing part number and exact boiler model before ordering.
Supplied with an integrated bypass, this hydraulic inlet assembly is specified for compatible Baxi Duo-tec and Eco boiler models, including the 28 HE, 33 HE and 30 Eco variants.
An important replacement component for compatible boiler servicing and repairs, this assembly should be checked against the existing part number and exact boiler model before ordering.
£170.50 incl tax
Baxi Pressure Differential Assembly Kit 7224342 – Boiler Spare
7224342
The Baxi 7224342 Pressure Differential Assembly Kit is a replacement hydraulic component designed for selected Baxi, Main and Potterton combination boilers.
The assembly forms part of the boiler's hydraulic control system, helping manage the flow of water between the central heating and domestic hot water circuits. In combination boilers, the diverter valve directs heated water to either the radiators or the hot water outlet as required, allowing both heating and hot water to be provided without a separate storage cylinder.
Suitable for selected Baxi Combi, Main Combi HE and Potterton Performa HE models, this replacement kit is an important component for compatible boiler servicing and repairs.
Always check the existing part number and exact boiler model before ordering to ensure compatibility.
The assembly forms part of the boiler's hydraulic control system, helping manage the flow of water between the central heating and domestic hot water circuits. In combination boilers, the diverter valve directs heated water to either the radiators or the hot water outlet as required, allowing both heating and hot water to be provided without a separate storage cylinder.
Suitable for selected Baxi Combi, Main Combi HE and Potterton Performa HE models, this replacement kit is an important component for compatible boiler servicing and repairs.
Always check the existing part number and exact boiler model before ordering to ensure compatibility.
£160.88 incl tax
Baxi 3-Way Valve Assembly Without Bypass 7224764 – Boiler Spare
5132456 (7224764)
The Baxi 7224764 3-Way Valve Assembly Without Bypass is a replacement boiler component designed for selected Baxi, Main and Potterton appliances.
The three-way valve forms part of the boiler's hydraulic system, directing heated water between the central heating circuit and domestic hot water circuit as required. This allows compatible combination boilers to provide heating and hot water from a single appliance.
Supplied without a bypass, this replacement assembly includes diverter valve washers and seals to support the installation and replacement process.
Suitable for selected appliances across the Baxi, Main and Potterton ranges. Always check the existing part number and exact boiler model before ordering.
The three-way valve forms part of the boiler's hydraulic system, directing heated water between the central heating circuit and domestic hot water circuit as required. This allows compatible combination boilers to provide heating and hot water from a single appliance.
Supplied without a bypass, this replacement assembly includes diverter valve washers and seals to support the installation and replacement process.
Suitable for selected appliances across the Baxi, Main and Potterton ranges. Always check the existing part number and exact boiler model before ordering.
£145.09 incl tax
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