Worcester Bosch 14 Plate Heat Exchanger 87161066850 Fits Greenstar Boilers

The Worcester Bosch 14 plate heat exchanger 87161066850 transfers heat from the boiler’s primary circuit to the domestic hot water supply in selected Greenstar combi boilers. Therefore, it helps deliver steady hot water and efficient performance. However, scale, sludge, or internal wear can reduce heat transfer and cause temperature issues. Replacing the faulty exchanger helps restore smoother hot water flow and normal boiler performance.

Compatibility :

• Greenstar Life GR8300IW 30C: 30C LPG, 30C NG
• Greenstar 8000 Style GR8700IW 30C: 30C LPG, 30C NG
• Greenstar 8000 Style GR8700IW 30CB: 30CB LPG, 30CB NG
• Greenstar Combi CDI: 25 CDI, 27 CDI HE, 27 CDI HE LPG, 30 CDI, 30 CDI HE, 30 CDI HE LPG
• Greenstar CDI Classic: 29 CDI Classic, 29 CDI Classic LPG, 29 CDI Classic ERP, 29 CDI Classic ERP LPG
• Greenstar 30i Combi ERP: 30i Combi ERP, 30i Combi ERP LPG
• Greenstar i Junior HE: 28 I Junior HE, 28 I Junior HE LPG, 28 I Junior HE MK5 2013 NG/LPG
• Greenstar Si: 30 Si, 30 Si LPG

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 Worcester Bosch 14 plate heat exchanger do?
It transfers heat from the boiler’s primary circuit to the domestic hot water system.
As a result, it helps the boiler deliver hot water to taps and showers efficiently.

2. What part number should I check before ordering?
You should check manufacturer part number 87161066850 before placing an order.
Also compare the GC number and boiler model to make sure the part matches your appliance.

3. What problems can a faulty plate heat exchanger cause?
A blocked or worn heat exchanger can cause poor hot water flow, fluctuating temperature, or slow heating response.
In some cases, scale or sludge inside the exchanger can reduce heat transfer and affect boiler performance.

4. Is this heat exchanger suitable for Worcester Greenstar 8000 Style boilers?
Yes, this part fits selected Greenstar 8000 Style 30C and 30CB models.
However, always match your boiler model and GC number with the compatibility list before ordering.

5. Should a Gas Safe engineer fit this part?
Yes, a Gas Safe registered engineer should install boiler parts.
This helps ensure safe fitting, correct testing, and reliable boiler operation after replacement.