Gas Furnace Preferred 80% AFUE 70000 BTU Two-Stage Variable-Speed Multi-position 14.2-Inch-Wide Cabinet

The Gas Furnace Preferred 80% AFUE 70,000 BTU Two-Stage Variable-Speed Multi-Position (820TB36070V14) provides efficient, dependable comfort with an 80% AFUE rating and a normalized 70,000 BTU input. This model features a two-stage gas valve and a variable-speed ECM blower motor that delivers quiet, precise airflow across both heating stages for greater temperature control and energy savings. The compact 14.2-wide cabinet (approximately 33 1/2" high - 29 deep) supports upflow, downflow, or horizontal installation through its full 4-way multipoise design, offering maximum flexibility in tight mechanical spaces. Operating on 115 V single-phase power, it includes a 1/2" NPT gas connection field-convertible for natural gas or propane and supports nominal airflow up to 1,200 CFM. Certified for a temperature rise range of 30-60 °F with a maximum external static pressure of 0.12 in. w.c., the unit allows up to 13 venting configurations for sealed or ventilated combustion air. With Perfect Heat adaptive control, Fan On Plus continuous fan operation, QuietGuard sound insulation, and a service-friendly design, the 820TB36070V14.2 offers technicians an ideal balance of performance, flexibility, and quiet operation for professional HVAC installations.