TypeHybridToilet Cistern CapacityFTW--Standards MetMCSOutdoor Working Temperature-15C/25CNumber of PhasesSingle PhaseModelE-TecInput Voltage220-240VIncludesAlpha E-Tec 33 HB boiler, Alpha E-Tec EHP external heat pump unit, Smartech controlsHeat Output4kWEfficiencyA+Compatible WithHydrogen blends (up to 20% hydrogen)ColourWhiteCertifications MetMCSSupplier Part Number3.033346Brand NameAlpha