Overview
The Vaillant 354545-28 Venturi Nozzle is a precision heating system component engineered for Vaillant ecoTEC Pro boiler series. This venturi assembly plays an essential role in regulating the air-to-gas mixture during combustion, ensuring stable burner operation and fuel efficiency. Designed as a drop-in replacement for OEM Vaillant systems, this nozzle maintains optimal performance in domestic and light commercial heating installations.
Key Features
- Genuine Vaillant OEM component for ecoTEC Pro series compatibility
- Maintains precise air-to-gas ratio for complete, efficient combustion
- Integral part of the gas section assembly
- Reliable performance across multiple boiler revisions (R1, R2, R4)
- New, open-box condition—fully functional and inspected
Technical Specifications
- Manufacturer: Vaillant
- Part Type: Venturi Nozzle Assembly
- Compatible Boiler Series: ecoTEC Pro 28, ecoTEC Pro 30
- Application: Gas section with venturi
- Fuel Types: Natural Gas (NG), LPG
- Revision Support: R1, R2, R4 models (2012 onward)
- Condition: New, Open Box
Typical Applications
- Domestic combination boiler maintenance and repair
- ecoTEC Pro 28 VUW 286/5-3 replacement
- ecoTEC Pro 30 system upgrades
- Heating engineers and technician field service
- Boiler refurbishment and parts consolidation
Compatibility & Replacements
Compatible With
- Vaillant ecoTEC Pro 28 (2012–current)
- Vaillant ecoTEC Pro 28 R1, R2, R4 revisions
- Vaillant ecoTEC Pro 30 models
- Natural gas and LPG boiler variants
- VUW 286/5-3 and related ecoTEC Pro platforms
Replaces / Drop-In Replacement For
- Vaillant OEM part 0020146732 (gas section with venturi)
- Original ecoTEC Pro 28 venturi nozzle assemblies
- Factory-equivalent venturi components for Pro 28/30 series
Works With
- Vaillant ecoTEC Pro control system and PCB
- Standard heating system piping (M22 or equivalent)
- Vaillant gas valve and burner assemblies
- Domestic heating installations (UK, EU certified)
