Gas Furnace R-Series 80% AFUE 45000 BTU Single-Stage Multi-position 14.2-Inch-Wide Cabinet

The Gas Furnace R-Series 80% AFUE 45000 BTU Single-Stage Multi-position (R80MSN0451412A) provides reliable, efficient heating performance in a compact 14.2-inch-wide cabinet ideal for space-constrained installations. Delivering 45,000 BTU input at 80% AFUE, this furnace is designed for upflow or horizontal applications and includes a multi-speed ECM blower motor for quiet, efficient airflow and adaptable comfort control. The single-stage gas valve ensures consistent heating operation and simple maintenance. It operates on 115-volt single-phase power, typically drawing about 6 amps on a 15-amp circuit, and connects via a 1/2" NPT gas fitting suitable for natural gas or propane. This non-condensing Category I furnace supports standard B-vent or lined masonry chimney venting and maintains a temperature rise range of 30 to 60 degrees Fahrenheit. Built with a durable aluminized steel heat exchanger, insulated cabinet, and service-friendly access panels, the R-Series R80MSN offers dependable comfort and technician-ready design for long-lasting residential performance.