Halstead
Halstead 4+1 Isothermic Heat Exchanger 451100
Halstead 4+1 isothermic heat exchanger, part number 451100, for compatible gas boiler models.
At a glance
- Part type: Heat exchanger
- Appliance family: Gas boiler spares
£819.53
£682.94 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 Halstead 451100 is a 4+1 isothermic heat exchanger, classed as a heat exchanger spare for gas boilers. It transfers heat from the burner combustion gases to the central heating and domestic hot water circuit within the boiler.
Before you order
- Confirm the boiler make, model and GC number against the fitment list above.
- Check the existing heat exchanger part number and compare it with 451100 before ordering.
- Note that the Dimplex Combi 30 entry is listed with GC 47-149-02, and the Halstead ACE He30 and William Wilson AC 30 Combi entries are listed with GC 47-333-20.
Compliance
| GC number | H38-218 |
|---|
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| DIMPLEX DIMPLEX COMBI 30 | 47-149-02 | 47-149-02 | — | — |
| DIMPLEX DIMPLEX COMBI 30 LPG | — | — | — | |
| DIMPLEX DIMPLEX HE 33 | — | — | — | |
| HALSTEAD ACE HE30 | 47-333-20 | 47-333-20 | — | — |
| HALSTEAD ACE HE35 | 47-260-13 | 47-260-13 | — | — |
| HALSTEAD WILLIAM WILSON AC 30 COMBI | 47-333-20 | 47-333-20 | — | — |
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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