
Baxi
Baxi DHW 10 Plate Heat Exchanger Assembly 7661816
Baxi 7661816 DHW 10 plate heat exchanger assembly for 224 and 424 combi boilers.
At a glance
- Also known as 1132187
£98.56
£82.13 ex. VAT · VAT at 20%
Same-day dispatch
Ordered by 4pm Mon–Fri, 10:30am Sat.
30-day returns
Unused, in original packaging.
What it is
The Baxi 7661816 is a domestic hot water (DHW) plate heat exchanger assembly with a 10-plate stack. It is fitted to Baxi 224 and 424 combi appliances, where it transfers heat from the primary circuit to the domestic hot water supply. The assembly is supplied as a complete unit for direct fitting to the appliance.
Signs this part needs replacing
- Domestic hot water runs hot and cold or fluctuates in temperature
- Reduced hot water flow rate at the taps compared with normal operation
- Water leaking from the plate stack or the connections around the exchanger
- Scale or debris build-up restricting flow through the plates
- Poor heat transfer between the primary circuit and the DHW side
Before you order
- Confirm your appliance model against the fit list above before ordering
- Check the existing part number on the appliance matches 7661816
- Verify the plate count of the fitted exchanger is 10
- Inspect the seals and connections around the exchanger for condition before fitting
Compliance
| Alternative numbers | 1132187 |
|---|
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| BAXI 224 COMBI 2 | 47-077-48 | 47-077-48 | — | — |
| BAXI 224 ErP COMBI | 47-077-21 | 47-077-21 | — | — |
| BAXI 224 LPG COMBI 2 | 47-077-50 | 47-077-50 | — | — |
| BAXI 424 ErP COMBI | 47-077-23 | 47-077-23 | — | — |
Documents & drawings
Everything we hold for this part. Where a document exists but we don't hold it, the technical team will source it from the manufacturer — usually the same working day.
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