Vaillant
Vaillant Insulation 300L Top 0020174769
Top insulation for Vaillant allSTOR VPS 300/3-5 cylinders, part number 0020174769.
At a glance
- Also known as 1386220
Showing prices
£191.96
£159.97 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
Vaillant top insulation for the allSTOR VPS 300/3-5 cylinder. It is the upper insulation section that fits over the top of the 300 litre cylinder. Its function is to reduce heat loss from the top of the hot water cylinder.
Signs this part needs replacing
- Visible tears, cracks or crumbling of the insulation material
- Exposed cylinder top where insulation has become detached or missing
- Increased heat loss from the cylinder, leading to higher energy bills
- Condensation or dampness around the top of the cylinder
- Insulation that has become compressed or degraded over time
Before you order
- Confirm your cylinder model is Vaillant allSTOR VPS 300/3-5
- Check the part number 0020174769 against your existing insulation or parts list
- Verify whether the top insulation is the correct section required (top, not side or base)
- Inspect the cylinder for any other damage that may need addressing
Compliance
| Alternative numbers | 1386220 |
|---|
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| VAILLANT VPS 300/3-5 | — | — | — | |
| VAILLANT allSTOR VPS 300/3-5 | — | — | — | |
| VAILLANT allSTOR VPS 300/3-5 (2015) | — | — | — |
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.