The Vaillant ecoFIT Pure 835 is a 35kW wall-mounted combi boiler running on natural gas, supplied complete with a horizontal flue and boiler pack ready for installation. It delivers 26.7kW of central heating output and a full 35kW for domestic hot water, with a hot water flow rate of 14.1 L/min, suiting mid-to-larger households with higher simultaneous demand.||Built with an aluminium heat exchanger and a concentric flue system, the unit is designed for internal wall mounting on a 230V supply. It carries an A rating across both ErP hot water and ErP heating performance, supporting efficient running costs and compliance with current Building Regulations on system efficiency. Thermostatic control is built in for accurate temperature management.||At 280mm high, 390mm wide, and 700mm deep, and weighing 32kg, the ecoFIT Pure 835 is compact enough for standard kitchen or utility cupboard installation. It's WRAS approved and backed by Vaillant's 2 year warranty.