The Vaillant ecoTEC Plus 838 combination boiler is suitable for medium to large sized homes with up to 2 bathrooms and an en-suite. Attractive in design and quiet in operation, this 38kW boiler delivers superb performance  using Vaillants innovative AquaComfort system to provide instant hot water at a constant temperature. 

• Innovative new electronic gas and air modulation system for a cleaner, lower emission combustion 
• New higher efficiency pump for reduced energy consumption and lower standby losses Flame lift detection system for more efficient and quieter combustion 
• Stylish new case and control panel design for enhanced appearance 
• Standard 5 year warranty extended to 7 years when installed by a Vaillant Advance installer