Baxi Expansion Vessel 10L 5114692 – Duo Tec, Platinum & Combi

Description

Baxi Expansion Vessel 10L 5114692 | Duo Tec & Platinum Boilers

The Baxi Expansion Vessel 10L (Part No. 5114692) is a critical sealed-system component designed to absorb water expansion as your boiler heats up, preventing pressure spikes and system shutdowns.

A failed expansion vessel commonly causes pressure loss, frequent filling loop use, pressure relief valve discharge, and boiler lockouts. Replacing this part restores stable pressure control and protects internal boiler components from damage.

Manufactured to OEM standards, this 10-litre vessel is a direct replacement for multiple Baxi, Main, and Potterton boilers, ensuring correct fitment and long-term reliability.

Baxi Boilers

105 HE A Instant

• GC 47-075-50

Duo Tec Range

• Duo Tec 24 HE – GC 47-075-23

• Duo Tec 28 HE – GC 47-075-25

• Duo Tec 33 HE – GC 47-075-24

• Duo Tec 33 HE A (Issue 9) – GC 47-075-37

• Duo Tec 33 HE A (Issue 8) – GC 47-075-37 BEFORE

• Duo Tec 40 HE – GC 47-075-26

• Duo Tec 40 HE A – GC 47-075-38

Combi & Platinum Range

• Combi 33 HE – GC 47-075-22

• Platinum Combi 24 HE – GC 47-075-27

• Platinum Combi 28 HE – GC 47-075-28

• Platinum Combi 33 HE – GC 47-075-29

• Platinum Combi 33 HE A – GC 47-075-33

• Platinum Combi 40 HE – GC 47-075-30

• Platinum Combi 40 HE A – GC 47-075-34

 Main Boilers

• 25 Eco Elite – GC 47-467-08

• 28 System Eco Elite – GC 41-467-22

• 30 Eco Elite – GC 47-467-09

• 28 System Eco – GC 41-467-12

• Combi 25 Eco – GC 47-467-01

• Combi 30 Eco – GC 47-467-03

 Potterton Boilers

• Apollo 30 – GC 47-393-37

• Gold 24 HE Combi – GC 47-590-05

• Gold 28 HE Combi – GC 47-590-06

• Gold 33 HE A Combi – GC 47-393-20

• Gold 33 HE Combi – GC 47-590-19

• Gold System 28 HE A – GC 41-592-17

• Heatmax Combi 33 HE – GC 47-393-29

• Promax Combi 24 HE Plus – GC 47-393-17

If you’re looking for a Baxi 428 Combi Expansion Vessel Assembly 7L 7661749 or any other different Baxi Expansion Vessel, follow the link provided.

Why Choose This Product?

This Baxi expansion vessel and PRV assembly provides stable pressure control and improves overall boiler safety. Moreover, it reduces stress on internal components during heating and hot water demand. Because the unit includes both the expansion vessel and pressure relief valve, it offers a complete and convenient replacement solution. In addition, choosing a brand new assembly ensures dependable performance, reduced risk of leaks, and long-term reliability for your heating system.

Delivery and Return

Orders placed before 1 PM are dispatched the same working day, and you can choose standard or next-day delivery at checkout. Additionally, you may return the item within 30 days if it remains unused and in its original condition. For safety and correct operation, always use a Gas Safe registered engineer to install this part.

Frequently Asked Questions

1.What does the Baxi Duo Tec 40HE A expansion vessel and PRV do?
The expansion vessel absorbs pressure changes during heating cycles, while the PRV releases excess pressure when needed. Together, they protect the boiler and ensure stable operation.

2.Is part number 5114692 correct for my boiler?
Yes. Part number 5114692 fits the Baxi Duo Tec 40HE A model. Therefore, it provides a direct and reliable replacement when pressure components fail.

3.Why does my boiler need a new expansion vessel?
Over time, an expansion vessel can lose pressure or fail. As a result, the boiler may show pressure faults or release water. Replacing it restores correct pressure control.

4.Does this product include a pressure relief valve?
Yes. This assembly includes both the 10 litre expansion vessel and the pressure relief valve, which makes installation simpler and more efficient.

5.Is this expansion vessel brand new or refurbished?
This unit is brand new. Consequently, it offers long service life and dependable performance from the moment of installation.