The ecoTEC plus 428 has exceptional performance with outstanding efficiencies of over 90% and low NOx emissions. It has a new compact and kitchen-friendly design. low lift weight and requires no compartment ventilation.
- SEDBUK Band 'A' rated fuel efficiency
- Fully modulating low NOx burner and fan
- Compact dimensions / compatible with the full range of Vaillant accessories
- Built-in status / diagnostic display
- Built-in two stage frost protection