The Vaillant ecoTEC Plus 418 is a highly advanced 18kW regular boiler tailored to provide exceptional thermodynamic efficiency for properties operating on traditional open-vented systems. Built around an aerospace-grade aluminium heat exchanger, this unit delivers rapid heat transfer and enduring operational stability. Boasting a wide modulation range of up to 1:6, the burner intelligently scales back its firing rate during milder weather, virtually eliminating energy wastage and achieving an ErP A-rating with 89.2% SAP efficiency.

Recognised as the most compact heat-only chassis ever developed by Vaillant, its lightweight construction and shallow profile permit completely unhindered installation within standard kitchen cabinetry. The integration of a push-fit flue system, combined with fully removable side panels, guarantees maximum accessibility for the installing engineer during routing and subsequent maintenance. Fully Quiet Mark accredited, this unobtrusive appliance features built-in two-stage frost protection and straightforward push-button programming, ensuring absolute reliability throughout the harshest winter months.

Q: Can this boiler be used on sealed heating systems?
A: No, this is a dedicated regular boiler designed exclusively for traditional open-vented setups with a hot water cylinder.

Q: What is the modulation ratio of this unit?
A: It features an impressive 1:6 modulation range to strictly control gas consumption during low load periods.

Q: Is the boiler noisy during operation?
A: No, it is fully Quiet Mark accredited, ensuring ultra-quiet performance even during maximum output cycles.

Q: Does it have built-in frost protection?
A: Yes, the unit includes two-stage automated frost protection to safeguard internal components year-round.