Alpha
Alpha DHW Heat Exchanger 1.022222
Alpha DHW heat exchanger, part number 1.022222, for CD35C and He33 boiler models.
At a glance
- Also known as HEAT-EXCHANGER, DHW-HEAT-EXCHANGER-CD35, 1257763
£216.04
£180.03 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 DHW heat exchanger is a plate-type component used in Alpha gas boilers to transfer heat from the primary circuit to the domestic hot water supply. It is supplied under Alpha part number 1.022222 and is listed for the Alpha CD35C range. The part sits in the domestic hot water circuit and is responsible for heating mains water as it passes through the boiler.
Signs this part needs replacing
- Domestic hot water running hot and cold or fluctuating in temperature
- Reduced hot water flow rate or pressure at the tap
- Scale or debris blocking the plate passages, causing poor heat transfer
- Water weeping or staining around the heat exchanger body or its seals
- Boiler locking out or reporting a DHW-related fault during a hot water draw
Before you order
- Confirm the boiler model and GC number against the appliance data badge
- Check whether the boiler is running on LPG, as the listed fitments are LPG variants
- Inspect the existing heat exchanger and its seals for scale, blockage or leakage before removal
- Verify the part number 1.022222 against the manufacturer's parts list for your appliance
Compliance
| Alternative numbers | HEAT-EXCHANGER, DHW-HEAT-EXCHANGER-CD35, 1257763 |
|---|
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| ALPHA ALPHA CD35C | — | — | — | |
| ALPHA ALPHA CD35C LPG | — | — | — | |
| ALPHA CD35C | 47-532-35 | 47-532-35 | — | — |
| ALPHA CD35C (LPG) | 47-532-36 | 47-532-36 | — | — |
| ALPHA HE33 | 47-532-43 | 47-532-43 | — | — |
| ALPHA HE33 (LPG) | 47-532-44 | 47-532-44 | — | — |
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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