
Viessmann
Viessmann domestic hot water heat exchanger 7819802
Genuine Viessmann domestic hot water heat exchanger for the Vitodens 100, Vitodens 200 and Vitopend 200 boiler ranges.
At a glance
- Also known as 2321932
- Have a Gas Safe registered engineer carry out installation
£470.44
£392.03 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
Genuine Viessmann domestic hot water (DHW) heat exchanger, used to transfer heat into the hot water circuit in compatible boilers.
Signs this part needs replacing
- Reduced or fluctuating hot water temperature
- Slow hot water flow at the tap despite good mains pressure
- Boiler locks out on a DHW-related fault
- Visible scale, corrosion or leaks around the exchanger
Before you order
- Match part number 7819802 printed on your existing exchanger
- Isolate the electrical, gas and water supplies before removal
- Have a Gas Safe registered engineer carry out installation
Compliance
| Alternative numbers | 2321932 |
|---|
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| VIESSMANN VITODENS 200 WB2 6-24C SERIAL No. 7167063 | — | — | — | |
| VIESSMANN VITODENS 200 WB2A 6-24C SERIAL No. 7170317 | — | — | — |
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.
Not sure which part?
Search by part number, product name or brand — our technical team confirms fitment before anything is dispatched.
