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.

• Exclusively designed for the specification market and do not attract any rewards, credits, cash, guarantee, or incentive points if registered on Vaillant advance
• Compact, cupboard fit solution - small boiler footprint, offering flexibility of siting
• 10m (60/100) and 25m (80/125) flue lengths for maximum siting freedom
• Compatible with Vaillant’s intelligent range of controls - for the most convenient and energy efficient system
• High-specification aluminium heat exchanger - designed to last longer, be easily maintained, and give reduced energy bills
• Clear LED display - Offers visibility in dimly lit areas for easier installation and use
• High quality components - Offering peace of mind for the lifetime of the product
• Easy installation and maintenance - layout allows all components to be accessed from the boiler front