Vaillant
Vaillant Insulation 0020177974
Vaillant insulation part 0020177974 for VIH R and VIH S unvented cylinders.
At a glance
- Also known as 1392412
£83.42
£69.52 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
This is a Vaillant insulation component, supplied under part number 0020177974. It is used on Vaillant unvented hot water cylinders in the VIH R and VIH S ranges, where it forms part of the cylinder's thermal insulation. Its role is to limit heat loss from the stored hot water and keep the cylinder surface temperature controlled.
Signs this part needs replacing
- Visible damage, splitting or compression of the insulation material
- Damp, staining or condensation on or around the cylinder insulation
- The cylinder surface running noticeably warmer than expected in service
- Insulation that has come away from the cylinder body or no longer sits correctly
- Increased standing heat loss from the cylinder, with hot water cooling faster than usual
Before you order
- Confirm the cylinder model from the data plate on the appliance, not from memory
- Check the model against the fitment list above before ordering
- Verify the existing part number 0020177974 against the component being replaced
- Confirm the cylinder is a VIH R or VIH S variant, as other Vaillant cylinders use different insulation parts
Compliance
| Alternative numbers | 1392412 |
|---|
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| VAILLANT VANTAGE VIH R 1000 (2013) | — | — | — | |
| VAILLANT VANTAGE VIH R 750 (2013) | — | — | — | |
| VAILLANT VIH R 1000 | — | — | — | |
| VAILLANT VIH R 750 | — | — | — | |
| VAILLANT VIH S 1000 | — | — | — | |
| VAILLANT VIH S 750 | — | — | — | |
| VAILLANT auroSTOR VIH S 1000 (2013) | — | — | — | |
| VAILLANT auroSTOR VIH S 750 (2013) | — | — | — |
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 documents held for this part. The technical team will source them from the manufacturer — usually the same working day.
No technical questions yet for this part.
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