Hi-Boy Multi-Position, Variable Speed Oil FurnaceFeatures Stainless Steel Construction - Heavy Gauge Heat Exchanger Quickly Transfers Heat To The Ambient Air Multi-Position - True Four-Way Multipoisition Unit That Opens-Up Installation Possibilities Low Profile - OMV098 Is 40-3/4' (1035mm) High and OMV112 Is 41-1/2' (1054mm) High OMV154 Is 47-7/8' (1216mm) High Sound Attenuator - High Density Acoustic Wool Dampens Combustion Sound Motor - Variable Speed ECM Motor That Provides True Constant CFM Capabilities Burners - Choice Of High Static Pressure Oil Burners Becket Nx, Riello 40-F3/40-Bf3/40-Bf5 (Burners Must Be or dered Separately) Inspection Port - External For Easy Access and Sealed - Adjust Combustion Parameters and Simplify Inspections Accessories Included - Barometric Draft Regulator,External Filter Rack and Air Filter High Quality Finish - High Gloss Baked Efficiency - AFUE Up To 86.7% Canada, 86.3% Us Approved - For Chimney Vent and Sealed Combustion Installations Warranty * 10 Year No Hassle Replacement Limited Warranty Lifetime Heat Exchanger Limited Warranty with Timely Registration 5 Year Parts Limited Warranty - With Timely Registration, An Additional 5 Year Parts Limited Warranty* Applies To original Purchaser/Homeowner, Some Limitations May Apply. See Warranty Certificate For Complete Details.