Alpha
Alpha Plate Heat Exchanger DHW 14 Plate 3.022783
Alpha 14-plate domestic hot water heat exchanger, part 3.022783, supplied with a seal kit and fitted to Eco 2, E-Tec and InTEC 2 boilers.
At a glance
- Part type: DHW plate heat exchanger
- Also known as 1258717
- This part is fitted to a gas appliance; installation must be carried out by a Gas Safe registered engineer.
£193.00
£160.83 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 Alpha 3.022783 is a 14-plate domestic hot water heat exchanger supplied with a seal kit. It sits in the DHW circuit and transfers heat from the boiler's primary water into the mains cold supply, giving hot water on demand. The part is used across the Alpha Eco 2, Eco 2 Plus, E-Tec and InTEC 2 appliance families.
Signs this part needs replacing
- Hot water at the tap runs hot then cold, or fluctuates in temperature
- DHW flow rate drops, or the outlet temperature stays below the set point
- The boiler fires on a hot water demand but the water stays lukewarm
- Water weeps from the plate stack or from the connections
- Scale or sludge restricting the plate channels, common in hard water areas
Before you order
- Check the GC number on the appliance data badge against the compatibility list to confirm the correct variant.
- Cross-reference the alternative numbers 1258717 and 022783 if the original label is unreadable.
- A seal kit is supplied; inspect the existing gaskets and connections for damage before refitting.
- This part is fitted to a gas appliance; installation must be carried out by a Gas Safe registered engineer.
Mechanical
| Part type | Domestic hot water plate heat exchanger |
|---|
Compliance
| Manufacturer part number (MPN) | 3022783 |
|---|---|
| Commodity code | 8419 50 00 00 |
| GPC classification | Household Boilers/Furnaces/Tank Water Heaters Replacement Parts/Accessories |
| Alternative numbers | ALPHA3.022783, ALPHA3.022783, DHW-14-PLATE-HEAT-EXCHANGER-WITH-SEAL-KIT, 1258717 |
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| ALPHA ALPHA ECO 2 | — | — | — | |
| ALPHA ALPHA ECO 2 BOILER | 47-532-60 | 47-532-60 | — | — |
| ALPHA ALPHA ECO 2 PLUS | — | — | — | |
| ALPHA ALPHA ECO 2 PLUS BOILER | 47-532-63 | 47-532-63 | — | — |
| ALPHA ALPHA InTEC 2 28X | — | — | — | |
| ALPHA ALPHA InTEC 2 28XE | — | — | — | |
| ALPHA E-TEC 28 | 47-532-69 | 47-532-69 | — | — |
| ALPHA E-TEC 28 (LPG) | 47-532-73 | 47-532-73 | — | — |
| ALPHA E-TEC PLUS 28 | 47-532-77 | 47-532-77 | — | — |
| ALPHA E-TEC PLUS 28 (LPG) | 47-532-77 | 47-532-77 | — | — |
Showing 10 of 14 compatible appliances.
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.
ALPHA appliance manual — ALPHA ECO 2 BOILER (GC 47-532-60)
manualmanualALPHA appliance manual — ALPHA ECO 2 PLUS BOILER (GC 47-532-63)
manualmanualALPHA appliance manual — E-TEC 28 (GC 47-532-69), E-TEC 28 (LPG) (GC 47-532-73)
manualmanualALPHA appliance manual — E-TEC PLUS 28 (GC 47-532-77), E-TEC PLUS 28 (LPG) (GC 47-532-77)
manualmanualALPHA appliance manual — EVOKE 28 (GC 47-532-71), EVOKE 28 (LPG) (GC 47-532-75)
manualmanualALPHA appliance manual — InTEC 2 28X (GC 47-532-62)
manualmanualALPHA appliance manual — InTEC 2 28XE
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