The Vaillant ecoTEC Plus 836 36kW Combi Boiler is a high-efficiency natural gas heating solution designed for modern homes with higher heating and hot water demands. Combining central heating and instant domestic hot water in one compact combi boiler, it eliminates the need for a separate hot water cylinder in suitable installations. With a powerful 36kW output, advanced Vaillant engineering and compatibility with up to 20% hydrogen blending, the ecoTEC Plus 836 provides reliable performance while supporting future-ready heating technology. Backed by a 10-year warranty, this A-rated Vaillant combi boiler is an excellent choice for homeowners seeking efficient, dependable and space-saving heating.