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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.
720043401 (replaced By 7690350) Baxi Printed Circuit Board
720043401 (REPLACED BY 7690350)
Genuine Baxi 7690350 Printed Circuit Board (PCB) for compatible 28kW combi boilers. This replacement boiler PCB controls key electrical and electronic functions within the heating system and is suitable for selected Baxi Duo-tec, Platinum, Gold, Promax and Titanium boilers. Ideal for professional boiler repair and maintenance.
£209.89 incl tax
Baxi / Potterton Printed Circuit Board Kit for Suprima 30–100 – 5111603
5111603
The Baxi / Potterton Printed Circuit Board (PCB) Kit, part number 5111603, is a replacement electronic control component for compatible Potterton Suprima boilers.
The PCB is responsible for managing and controlling key boiler functions. This replacement kit is designed for selected Suprima 30 to 100 models. Please check your existing PCB part number and boiler model before ordering to ensure compatibility.
The PCB is responsible for managing and controlling key boiler functions. This replacement kit is designed for selected Suprima 30 to 100 models. Please check your existing PCB part number and boiler model before ordering to ensure compatibility.
£387.68 incl tax
BAXI : 5107764 Description: HUBA PRESSURE TRANSMITTER
5107764
The Baxi Huba Pressure Transmitter 5107764 is a genuine replacement air pressure switch designed for Baxi Powermax boilers. This essential boiler safety component monitors fan operation and air pressure levels to help prevent unsafe gas build-up. Working alongside the boiler PCB, it ensures all critical safety checks are met before ignition, supporting reliable and efficient heating system performance.
£86.86 incl tax
BAXI : 5132454 Description: INLET ASSY 12L
5132454
The Baxi 5132454 Hydraulic Inlet Assembly (12 Litre) is a genuine replacement component designed for use with the diverter valve system in a range of Baxi boilers. Compatible with Duo-tec, Duo-tec ErP, Platinum, Platinum ErP, Main Eco Elite, Gold, Heatmax, and Promax models, this part ensures reliable water flow control and efficient system performance. Ideal for boiler servicing, repairs, and maintenance work.
£148.54 incl tax
BAXI : 7224343 Description: VALVE 3 WAY ASSEMBLY
7224343
Genuine Baxi 7224343 3 Way Valve Assembly Kit for compatible Combi, Performa and Main Combi boilers. This replacement diverter valve directs hot water between central heating and domestic hot water systems. Replaces part number 248062.
£233.94 incl tax
Baxi 3 Way Valve Ass.
248727
This genuine Baxi 3-way diverter valve assembly (248727) is designed for use in Baxi Combi Instant boilers including 105, 105 HE, 80 and 80E models. The diverter valve directs hot water between central heating and domestic hot water systems, ensuring efficient combi boiler performance. Ideal for boiler repairs and servicing.
£161.63 incl tax
Baxi 3 Way Valve Ass.
7224765
This genuine Baxi 3-way diverter valve assembly (Part No. 7224765) with bypass is designed for use in Baxi, Main and Potterton combi boilers. It directs boiler output between central heating and domestic hot water systems, helping resolve common heating and hot water changeover faults. A reliable OEM brass replacement for efficient boiler performance.
£150.58 incl tax
Baxi Assure 530 Combi 2 30kW Boiler 7814310
7814310
The Baxi Assure 530 Combi 2 30kW Gas Combi Boiler (7814310) is a compact, A-rated boiler designed for efficient central heating and instant hot water. With a cupboard-friendly design, 12.2L/min hot water flow rate, stainless steel heat exchanger and compatibility with natural gas or LPG, it is ideal for replacement and new heating installations.
£1,568.50 incl tax
Baxi Avanta PDK 93° Elbow White 5121369
5121369
The Baxi Avanta PDK 93° Elbow (part number 5121369) is a white plume‑displacement flue bend engineered for seamless integration with Baxi flue and boiler systems. Designed for easy installation, this 93° elbow enables flexible flue routing - especially useful in tight spaces or complex boiler layouts. Compatible with Baxi Multifit flue systems and a wide range of domestic boilers, this compact elbow ensures a neat, secure flue connection and reliable performance.
£44.17 incl tax
Baxi DHW Diaphragm
248838
This genuine Baxi 248838 DHW/Diff diaphragm is designed for use in Baxi Combi Instant and Performa boilers. It plays a key role in regulating domestic hot water flow and ensuring efficient boiler operation. A reliable replacement part for servicing and repairing compatible Baxi combi boilers.
£12.27 incl tax
Baxi Duo-tec / Megaflo Fan Assembly – 5121447
5121447
The Baxi 5121447 Fan Assembly is a replacement boiler component designed for selected Baxi Duo-tec, Megaflo and HE A boiler models.
The fan supports the boiler's combustion process by supplying the necessary airflow to the combustion chamber and helping to remove combustion gases through the flue. It is an important part of the boiler's operation and safety system.
Suitable for the Baxi models listed below, this replacement fan assembly is intended for professional boiler servicing and repair. Please check your boiler's exact model and existing part number before ordering.
The fan supports the boiler's combustion process by supplying the necessary airflow to the combustion chamber and helping to remove combustion gases through the flue. It is an important part of the boiler's operation and safety system.
Suitable for the Baxi models listed below, this replacement fan assembly is intended for professional boiler servicing and repair. Please check your boiler's exact model and existing part number before ordering.
£176.00 incl tax
Baxi Duo-Tec 2 Std Horiz Flue BLK 720598701
720598701
Baxi standard telescopic flue in black (Stock Code: 720598701), compatible with Baxi, Main and Potterton boilers. Designed for flexible horizontal flue installations, this adjustable flue kit ensures efficient exhaust ventilation and easy fitting. Ideal for domestic boiler installations requiring a reliable and extendable flue solution.
£137.44 incl tax
Baxi Duotec 200/400 24Hr Single Channel Mechanical Room Stat
7658781
The Baxi 7658781 is a wireless RF programmable room thermostat designed for compatible Baxi 200 and 400 Combi boilers. This single-channel mechanical thermostat provides programmable heating control, helping users manage room temperature and heating times for greater comfort and efficiency. It is a genuine Baxi boiler accessory with a plug-in receiver.
£379.14 incl tax
Baxi Duotec 400 Combi2 Boiler 30kw - 30
7790615
The Baxi Duotec 400 Combi2 Boiler 30kW is an energy-efficient and reliable combi boiler that is perfect for medium to large homes. It has an output of 30kW, which is enough to provide hot water and heating for a family of up to five people.
The boiler is also very quiet in operation, so it won't disturb you or your family. It is also backed by a five-year warranty, so you can be sure that you are making a wise investment.
The boiler is also very quiet in operation, so it won't disturb you or your family. It is also backed by a five-year warranty, so you can be sure that you are making a wise investment.
£1,828.23 incl tax
Baxi DuoTec 45 deg Elbow (pair) (Compatable With 200, 400 & 800 Range) 720647901
720647901
Genuine Baxi/Main/Pott 135° Flue Bend Pair (stock code 720647901) with fixing screws, designed for compact boiler flue routing and directional changes. Precision‑engineered bends ensure secure, compliant installation with compatible Baxi, Main and Potterton boilers, delivering smooth flue gas discharge and reliable performance for domestic heating systems.
£119.71 incl tax
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