Baxi Boiler Duo Tec Combi Expansion Vessel 8L 5114691 & PRV 248056

Brand New Baxi Duo Tec Expansion Vessel 8 Litre 5114691 & PRV 248056 , designed to fit various Baxi Duo Tec, Combi, Megaflo, Platinum Boilers. It comes with 12 months warranty.

Compatibility:

• Duo-Tec HE: 24, 28, 33
• Duo-Tec HE A: 24, 28
• Duo-Tec Combi ErP: 24, 28, 33, 40
• System HE: 15, 18, 24, 28, 32
• Megaflo HE A: 15, 18, 24, 28, 32
• System ErP: 15, 18, 24, 28, 32
• Combi HE: 24, 28
• Platinum Combi HE: 24, 28, 33, 40
• Combi ErP: 24, 28, 33, 40

Important fitting advice

We recommend that all parts are fitted by a fully qualified Gas Safe registered engineer. If you need help confirming the right part, contact us – our team has 10+ years of boiler spares knowledge and friendly chat support to help you quickly.

Delivery

At Boiler Spares Hub, we dispatch orders within 1 working day (Monday – Friday). Orders placed outside working days will be dispatched on the next working day. For delivery options available for this product, please add it to your basket or check our delivery options page.

Returns

We accept 30-day returns. Returns must be in an unopened, sealed box. If we find the item has been used or installation was attempted, we may refuse the return.

Frequently Asked Questions (FAQ’s):

1. What happens when an expansion vessel fails?
The boiler may lose pressure, discharge water through the PRV, shut down, or need frequent pressure top-ups.

2. How do I know if my expansion vessel is bad?
Common signs include pressure drops, leaking PRV pipe, boiler lockouts, and repeated re-pressurising.

3. Can I replace an expansion vessel myself?
It should be replaced by a Gas Safe engineer due to system pressure and safety requirements.

4. Does Baxi belong to other brands?
Yes. Baxi is part of the Baxi Heating Group along with Main and Potterton, and many parts are cross-compatible.