Rheem R97VA070M317KSA - 70K BTU/HR Prestige EcoNet Enabled Modulating Downflow/Horizontal Gas Furnace, 17 1/2' CabinetR97V- Series 97% residential gas furnace CSA certified Downflow/Horizontal Modulating operation to save energy and maintain optimal comfort level. Variable speed blower motor technology provides ultimate humidity control, quieter sound levels, and year round energy savings. EcoNet enabled HVAC Product PlusOne Diagnostics 7-Segment LED all units PlusOne Ignition System - DSI for reliability and longevity PlusOne Water Management System with patented Blocked Drain Sensor Heat exchanger is removable for improved serviceability. Aluminized steel primary and stainless steel secondary construction provide maximum corrosion resistance and thermal fatigue reliability. Low profile '34 inch' cabinet ideal for space constrained installations. Blower Shelf design - serviceable in all furnace orientations Pre marked hoses - insures proper system drainage Vent with 2' or 3' PVC Replaceable collector box Hemmed edges on cabinet and doors Quarter turn door fasteners for tool less access Integrated control boards feature dip switches for easy system set up Self priming condensate trap For optimal performance an EcoNet Control Center is recommended; must be paired with an EcoNet enabled heat pump or air conditioner, for a fully communicating HVAC system. Modulating Function: when used with an EcoNet Control Center modulating thermostat, modulation rate between 40% and 100% of total capacity. Two-stage Function: when used with a two-stage thermostat, furnace operates at 40% on first stage, and stages up to 65%, then 100% for second stage. Multistage Function: when used with a single-stage thermostat, furnace functions as a three stage furnace operating at 40%, 65% and 100% of total capacity.