Baxi Boiler DHW 16 Plate Heat Exchanger 7715760

The Baxi DHW 16 plate heat exchanger 7715760 is designed to transfer heat from the boiler’s primary circuit to the domestic hot water supply in selected Baxi combi boilers. As a result, it helps provide reliable and efficient hot water performance. However, if the exchanger becomes blocked, scaled, or worn, it can cause poor flow or inconsistent temperatures. Therefore, replacing it helps restore normal hot water operation.

Compatibility :

• Baxi 636 Combi
• Baxi 836 Combi

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 (FAQs)

1. What does the Baxi DHW 16 plate heat exchanger do?
The heat exchanger transfers heat from the boiler’s primary circuit to the domestic hot water supply. As a result, it allows your combi boiler to deliver hot water efficiently at taps and showers.

2. What are the signs of a faulty 16 plate heat exchanger?
Common signs include fluctuating hot water temperature, reduced hot water flow, lukewarm water, or no hot water at all. In some cases, internal scaling or blockage can also reduce performance.

3. Can a blocked plate heat exchanger be cleaned?
In some cases, a blocked heat exchanger may be cleaned using a suitable descaling process. However, if it is heavily scaled, leaking, or damaged, replacement is usually the better long-term solution.

4. Does the number of plates matter?
Yes, it does. The number of plates affects heat transfer and water flow performance. Therefore, using the correct 12 plate heat exchanger is important for proper fitting and reliable boiler operation.

5. Which boilers is this heat exchanger compatible with?
This part is suitable for selected Baxi 636 Combi and Baxi 836 Combi boilers. Checking the manufacturer code 7715760 and appliance model before purchase is always recommended.