From inside (document excerpt):
58HDV DIRECT VENT 4 WAY MULTIPOISE CONDENSING GAS FURNACE 95% DOWNFLOW/HORIZONTAL ORIENTATIONS 93.5% UPFLOW ORIENTATION Product Data 95% Variable Speed Two-Stage Heating Furnace FLEXIBILITY S Supports two-stage cooling units Dual Certified venting (1 or 2 pipe), Direct Vent Furnace 40- (1016mm) high with wider cabinets, for ease of installation -in. Factory shipped for natural gas, with Propane Gas conversion kits available S Four-way multipoise installation S Vent pipe can be run horizontally or vertically S Internal condensate drain system S Self diagnostics S Entire blower assembly removable S Adjustable timed blower heating Off delay Adjustable timed blower cooling On/Off delay Thermal lined, one piece steel cabinet for noise reduction Insulated blower compartment 24 and 115VAC humidifier terminals Electronic air cleaner terminal Dehumidification option S In-shot burners S California NOx approved QUALITY Stainless steel heat exchanger Stainless steel secondary heat exchanger High temperature limit control prevents overheating Direct ignition with Silicon Nitride igniton Flame roll-out sensors standard External filter rack with permanent filters ! WARNING UNIT OPERATION HAZARD Failure to follow this warning could result in personal injury, death or property damage.
This furnace is not designed for use in mobile homes, trailers, or recreational vehicles. SERVICE COMFORT DE S I GN Always Ask For ER TIFIE CERTIFIED EFFICIENCY S 95% AFUE Downflow / Horizontal 93.5% AFUE Upflow S Two-stage operation S ECM Variable speed DC motor S Two-stage Induced draft blower Use of the AHRI Certified TM Mark indicates a manufacturer’s participation in the program. For verification of certification for individual products, go to www.ahridirectory.org. UPFLOW/DOWNFLOW/HORIZONTAL (NATURAL GAS) Model Number 58HDV040 58HDV060 58HDV080 58HDV100 Dimensions H x W x D Inches