From inside (document excerpt):
58VLR LOW BOY OIL FURNACE INPUT RATES: 70,000 thru 154,000 BTUH SERIES 110 Product Data 58VLR FEATURES/BENEFITS Riello Oil Burner S High quality Riello oil burner allows safe and efficient combustion of oil. Casing S Made of 18 gauge painted steel for years of durability. S Cabinet features an insulated enclosure for the burner and controls. Insulation and Soundproofing S Unique sound trap along with insulated walls efficiently captures most combustion noise and vibrations and makes this unit one of the quietest on the market.
A06626 S Flue silence baffle ensures quiet operation. Combustion Products Venting S Rear flue outlet. S Unit may be vented using Type L vent material and a factory-built metal or masonry chimney. THE LATEST IN OIL FURNACE TECHNOLOGY The model 58VLR combines variable-speed high efficiency and quiet operation with oil heating technology. The 58VLR is available in 2 sizes. Each size can be fired at 3 different rates by a simple nozzle and pump pressure change. Unit 58VLR105 covers input ranges from 70,000 to 105,000 Btuh. Unit 58VLR120 covers input ranges from 119,000 to 154,000 Btuh. The furnace design is a low-boy style for upflow applications, where overhead space is limited. The components of the 58VLR are the finest in the industry. The unit uses a Riello oil burner with an electronic air damper. The 58VLR is a standard part of a quality-built home. This highefficiency furnace will provide years of quality service to home builders and homeowners alike. As with other Carrier furnaces, this model is designed to work as part of a total home comfort system which includes elements for cooling, air cleaning, humidification, ventilation, and zoning. This unit is not approved for use in mobile home installations. S Unit may also be sidewall vented with an approved power venter. Variable Speed Blower S Variable speed blower for precise airflow selection of heating or cooling operation. Ignition Control and Electronic Fan Control S Ignition control and fan control board provide reliable operation and easy connection of thermostat and accessory wiring. Combustion Chamber/Heat Exchanger S Composed mainly of stainless and aluminized steel, the unique combination combustion chamber/heat exchanger resists corrosion, overheating, and deterioration. S Heat transfer properties make it highly efficient. S All seams are tightly welded for leak–free operation. Certifications S 58VLR unit is CSA certified. S The efficiency is AHRI efficiency rating certified.