Bristan 131-300-85 Heat Exchange Unit Assy 8.5kW for SM/TH/GL/JOY/BL
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Summary
Product Overview
The Bristan 131-300-85 Heat Exchange Unit Assembly 8.5kW is a genuine Bristan replacement heating element assembly designed for compatible 8.5kW electric showers. It replaces the internal heat exchange component that warms water when the original unit has become inefficient, failed, or ceased to heat correctly.
Function & Use
This heat exchange unit contains the internal heating element and associated seals that generate hot water in 8.5kW Bristan electric shower models. Replacement is typically required when the shower fails to heat, provides inconsistent temperature, or trips safety cut-outs due to element degradation.
Key Features
--Genuine Bristan heat exchange unit assembly
--8.5kW rating for correct electrical load
--Includes heat element and associated seals
--Designed for durable performance and reliable heating
Confirmed Compatible Models
--Bristan Bliss 8.5kW Electric Shower – Black
--Bristan Bliss 8.5kW Electric Shower – White
--Bristan Glee 8.5kW Electric Shower – Black
--Bristan Glee 8.5kW Electric Shower – White
--Bristan Joy 8.5kW Electric Shower – Black
--Bristan Joy 8.5kW Electric Shower – White
--Bristan Smile 8.5kW Electric Shower – White
What’s Included
--One Bristan 131-300-85 heat exchange unit assembly
Installation Notes
Isolate the water and electrical supplies before replacing the heat exchange unit. Remove the shower cover to access the internal assembly, detach the old unit, and fit the 131-300-85 replacement, ensuring seals and clips are correctly engaged. Restore supplies and test operation for reliable hot water delivery.
Fast delivery
- UK delivery: £5.95 incl. VAT for this small packet item.
- For all in-stock spare parts the typical UK delivery timescale is 2-5 working days.
- If you need a part urgently then we can provide a next-day (delivered Mon-Fri) UK delivery service for all in-stock small parcels ordered before 3.00pm, Monday - Friday.
- Next day delivery is available to select at an additional charge during the checkout.
- Worldwide delivery available — see our delivery page for details.
Returns
- 14 days 'risk-free' returns.
- Start a return within 14 days of receiving your order by calling 0121 705 0866 or using our contact page.
- Full returns information is available in our terms and conditions.
Payment methods
We accept the following payment methods:
- Card payments: Visa, Mastercard, Maestro, Discover, JCB, Diners Club and EnRoute
- PayPal
- American Express: available via PayPal guest checkout only
- BACS bank transfer
- Cheque: dispatch takes place once payment has cleared
Security
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