ERP (Energy Efficiency)YMaximum Vertical Flue12Years Guaranteed1 year minimum (subject to T&C's)Width370mmTypeBoilers - Heat OnlySolar CompatibleYesNox ClassNOx Class 2Noise Level51dBMount TypeFloor StandingMaximum Vertical Flue 125mm12 mMaximum Vertical Flue 100mm12 mMaximum Horizontal Flue 125mm4 mMaximum Horizontal Flue 100mm4 mIncludesFlueHeight908mmHeat Output BTU88712Heat Output26 kWFuel TypeOilERP RatingADisplay TypeAnalogue DisplayDepth796mmDHW Output Min and MaxNot applicable for this regular boilerDHW OutputNot applicable for this regular boilerDHW Flow Rate at 35 Degree RiseNot applicable for this regular boilerCH Condensing Max Output26 kWBoiler TypeHeat Only BoilerBTU/h80,001 to 100,000Supplier Part NumberVTXOM15/26Range DescriptionVortex ProManufacturer Model NoVTXOM15/26Brand NameGrant