Andrews
Andrews Heat Insulator Z327
Heat insulator Z327 for Andrews water heaters, including Fastflo LWH42, LWH56, WH42 and WH56 models.
At a glance
- Also known as 1824146
Showing prices
£31.82
£26.52 ex. VAT · VAT at 20%
Available to order · 3 working days
Available to order · 3 working days
Not certain it's the right part? The technical team verifies fitment before dispatch — no charge, and it stops a second trip.Call the technical teamSend a technical question
Same-day dispatch
Ordered by 4pm Mon–Fri, 10:30am Sat.
30-day returns
Unused, in original packaging.
What it is
Andrews heat insulator, part number Z327. It is used in Andrews water heaters, including Fastflo models, to provide thermal insulation. Also listed as heat insulator CZV.
Signs this part needs replacing
- Visible cracks, crumbling or deterioration of the insulator material
- Reduced thermal efficiency or increased heat loss from the water heater
- Overheating of nearby components due to failed insulation
- Discolouration or scorching around the insulator
Before you order
- Confirm your appliance model matches one of the listed fits
- Check the existing part for the Z327 marking or CZV reference
- Consult the manufacturer's parts list if unsure of compatibility
Compliance
| Alternative numbers | 1824146 |
|---|
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| ANDREWS WATER HEATERS ANDREWS HOT WATER SPARES | — | — | — | |
| ANDREWS WATER HEATERS FASTFLO LWH42 | — | — | — | |
| ANDREWS WATER HEATERS FASTFLO LWH56 | — | — | — | |
| ANDREWS WATER HEATERS FASTFLO WH42 | — | — | — | |
| ANDREWS WATER HEATERS FASTFLO WH56 | — | — | — |
Fitment listings are a guide, not a guarantee. Plant-room assemblies get modified on site more often than not. Send us the GC number off the data badge and a photo of the existing valve and we will confirm before anything is dispatched.
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.
No technical questions yet for this part.
Not sure which part?
Search by part number, product name or brand — our technical team confirms fitment before anything is dispatched.