120000 BTU - 92% Efficiency, Up/Down/Horizontal Flow Application
120000 BTU - 92% Efficiency, Up/Down/Horizontal Flow Application
Model: Goodman GMNT120-5 Gas Furnace

This is a Downflow / Horizontal / Upflow unit.
Designed to be installed in up-flow, down-flow or horizontal-flow applications.
The heart of the furnace is the patented aluminized steel tubular primary heat exchanger and stainless-steel secondary heat exchanger which are highly corrosion and leak resistant . Combination redundant gas valve and regulator make for further reliability. Ignition is fully electronic with no standing pilot. Multiple high temperature safety limits and a flame sensing rod electrically monitors the flame at all times and shuts off furnace if problem detected. Integrated controls also have diagnostic light for easy evaluation of status in the event of needing service. Sound isolated blower motor, silicon mounting system to isolate vibration and electrical noise, and ball bearing technology on inducer motor all make for quiet and reliable operation.
All parts are industry standard which makes replacement easy in the event of needing service. 700 stocking distributors for Janitrol parts nationwide gives Janitrol the largest service and dealer base for furnaces in the country.
- Corrosion-resistant, seamless, aluminized steel tubular primary heat exchanger
- Stainless steel secondary heat exchanger
- Quiet, sound-isolated blower assembly
- Energy-saving PSC, multi-speed, direct drive blower motor
- Vertical or horizontal venting
- Bottom or side air inlet
- Left or right connection for gas, electric service, combustion air and vent
- Removable solid bottom base
- Quiet, corrosion-resistant induced draft blower assembly
- Integrated furnace control with diagnostics
- Aluminized steel inshot burners
- Multi-position to fit any application
- Reliable Hot Surface Ignition system
- Drain kit contains vent screens, drain trap, hoses and clamps
- For direct vent (2 pipe) or non-direct vent (1 pipe) installations
Enjoy free shipping on any accessories purchased with the Goodman GMNT120-5 Gas Furnace.
- Aprilaire Humidistat Wiring for GMNT GMT GDT Model(PDF, 172 KB)
- Thermostat Wiring for Goodman Models GMNT GMT GDT(PDF, 31.7 KB)
- Features and Benefits of GMNT(URL, Link)
- Goodman GMNT - Spec Sheet(PDF, 698 KB)
- GMNT Install Instructions(PDF, 723 KB)