ERP (Energy Efficiency)YYears Guaranteed7Width440mmTypeBoilers - System Solar CompatibleYesNox ClassNOx Class 6Noise Level52dBMount TypeWall MountedMaximum Vertical Flue 125mm14 mMaximum Vertical Flue 100mm14mMaximum Horizontal Flue 125mm12 mMaximum Horizontal Flue 100mm12 mIncludesBoiler OnlyHeight712mmHeat Output BTU89053Heat Output20 kWFuel TypeNatural GasERP RatingADisplay TypeLCD DisplayDepth253mmDHW Output Min and Max4.3 - 28 kWDHW Output28 kWDHW Flow Rate at 35 Degree RiseNot applicable for this system boilerCH Condensing Max Output26.1 kWBoiler TypeSystemBTU/h80,001 to 100,000Supplier Part Number3.033117Range DescriptionE-TecBrand NameAlpha