ERP (Energy Efficiency)YMaximum Vertical Flue12Years Guaranteed1 year minimum (subject to T&C's)Width505mmTypeOil System BoilerSolar CompatibleNoNox ClassNOx Class 2Noise Level51dBMount TypeFloor standingIncludesFlueHeight908mmHeat Output BTU70000Heat Output21 kWFuel TypeOilERP RatingADepth800mmDHW Output Min and Max15-21DHW Output21 kWCH Condensing Max Output21 kWBoiler TypeHeat Only BoilerBTU/h60,001 to 80,000Supplier Part NumberVTXSOMECO15/21Range DescriptionVortex EcoManufacturer Model NoVTXSOMECO15/21Brand NameGrant