The vaillant ecotec plus 415 open vent boiler delivers 15,000w heating power in a compact, cupboard-size design engineered for space-conscious installations. Offering rear flue compatibility, this boiler provides flexible positioning without compromising on performance. The straightforward backlit display and premium aluminium heat exchanger ensure reliable operation and user-friendly control. Hand-built in vaillant's award-winning derbyshire manufacturing plant, this unit integrates precision engineering with quality assurance. Advanced modulation technology allows the boiler to reduce output to 16% of maximum capacity when full heating power is not required, delivering fuel efficiency and cost savings. Tested with up to 20% hydrogen blended with natural gas as part of the hydeploy project, this system supports future energy transitions. Features & benefits: compact design fits in standard kitchen cupboards for discreet installation. Rear flue option provides flexible positioning and installation versatility. Modulates down to 16% of maximum output for optimised fuel consumption and cost efficiency. Compatible with a wide range of heating controls, from simple timers to vsmart smartphone app integration. Tested with up to 20% hydrogen blended with natural gas for future-ready performance. Premium aluminium heat exchanger and backlit display for reliable operation. Hand-built in vaillant's award-winning derbyshire manufacturing plant. Free 5-year guarantee included. Dimen...