59SC5A100S21--14
59 = Family
S = Single Stage Gas Valve
C = Comfort Series
5 = +95% AFUE
A = Major Series
100 = 100000 BTU Heating Capacity
S = Standard Motor
21 = 21" Casing Width
- = Voltage
- = Minor Series
14 = 1400 CFM

Standard Features

• PSC blower motor single-speed inducer motor and single-stage gas valve
• 4-way multipoise design
• Direct vent^*/two-pipe ventilated combustion air or single-pipe applications (^*excludes 26k btu model)
• Convertible to propane with accessory kit
• Approved for Twinning applications with accessory kit (060−10through 120−20 models only)
• Approved for Manufactured Housing/Mobile Home applicationswith MH accessory kit. (except 26k and 140k sizes)
• 10-year parts limited warranty²

¹Requires compatible thermostat²See warranty certificate for details