The Vaillant ecoFIT sustain 400 high performance regular boiler series is ultra small, easy to install, has top and rear flue options for maximum siting flexibility, with compact, cupboard fit dimensions, very low lift weight, but with all the performance that your customers demand.

• A smaller boiler footprint means the Ecofit Sustain offers siting flexibility including cupboard fit
• Familiar Vaillant diagnostics offers quick and easy maintenance for your maintenance team
• Using patented condensate trap it is easy to install with a safety back-up
• Fully modulating low nitrogen oxides burner and fan improves energy efficiency
• Built in two stage frost protection helps to ensure optimal performance all year round
• Modulation range up to a 1:5 ensures low energy consumption and maximum efficiency
• Clear bright Liquid-crystal display makes easy to read boiler wherever it is sited
• Up to 10 m flue lengths allows maximum flexibility for location of the boiler
• Energy-related Products A Rated products suitable for both refurbishment and new build with lower running cost to reduce heating bills
• Exclusively designed for the specification market and do not attract any rewards, credits, cash, guarantee, or incentive points if registered on Vaillant Advance