Description
Baxi Burner Assembly 5112770
The Baxi burner assembly 5112770 helps your boiler produce stable and efficient combustion, so the heating system can deliver reliable heating and hot water performance. However, a worn or damaged burner can lead to ignition problems, uneven flame performance, or reduced efficiency. Therefore, replacing it with this refurbished and fully tested burner assembly helps restore dependable boiler operation and smooth day-to-day performance.
Compatible Boilers
This part is compatible with the following Baxi boiler models:
Combi Series
- 105E – GC No. 47-075-08
105HE – GC No. 47-075-18
Combi Instant Series
- 105 E – GC No. 47-075-09
- 105E HE – GC No. 47-075-19
- 80E HE – GC No. 47-075-17
System Series
- 60/100 – GC No. 41-075-19
Why Choose This Product?
This refurbished Baxi burner assembly offers a practical and affordable solution for restoring proper boiler combustion and ignition performance. Each unit is fully tested before dispatch, while the included 12-month warranty provides added peace of mind.
Delivery and Return
Order before 1 PM for same-day dispatch with standard and next-day delivery options available. Returns are accepted within 30 days if the part remains unused and in original packaging. Always use a Gas Safe registered engineer for installation.
Frequently Asked Questions
1. What does the burner assembly do?
The burner assembly controls combustion inside the boiler, so it plays an important role in heating and hot water performance. If it becomes faulty, the boiler may suffer from ignition or flame stability issues.
2. Is this burner assembly refurbished?
Yes, this unit is professionally refurbished, fully tested, and quality checked before dispatch. As a result, it offers a reliable replacement option at a lower cost.
3. How do I confirm compatibility?
Always check the boiler model and existing part number 5112770 before ordering. This helps ensure the burner assembly matches your appliance correctly.
4. Does this product include a warranty?
Yes, this refurbished burner assembly includes a 12-month warranty. That added cover gives extra confidence when replacing a faulty component.
5. Who should install this burner assembly?
A Gas Safe registered engineer should install the part to ensure safe and correct boiler operation. Professional installation also helps support warranty validation.






