ERP (Energy Efficiency)YYears Guaranteed5Width440mmTypeBoilers - CombiSolar CompatibleNoNox ClassNOx Class 6Noise Level49 dB(A)Mount TypeWall MountedMaximum Vertical Flue 125mm41 mMaximum Vertical Flue 100mm16 mMaximum Horizontal Flue 125mm39 mMaximum Horizontal Flue 100mm12 mIncludesBoiler, Vertical Flue, Thermosat ControlHeight720mmHeat Output BTU88371Heat Output28 kWFuel TypeNatural GasERP RatingADisplay TypeDigital DisplayDepth338mmDHW Output Min and Max5.4 - 27.5 kWDHW Output27.5 kWDHW Flow Rate at 35 Degree Rise11.1 l/minCH Condensing Max Output25.9 kWSupplier Part NumberVAILECOTEC28VFSTHRange DescriptionecoTEC ProBrand NameVaillant