Goodman - 100,000 BTU 80% Variable Speed Gas Furnace - 21" Width - Upflow / Horizontal - Two Stage - 115V - R32 - GRVT801005CN
The GRVT801005CN gas furnace is from one of the top-of-the-line series by Goodman. Considered one of the best of the best, this furnace has a two stage burner and a variable speed blower motor. With the best durability and reliability that Goodman 80% efficient furnaces have to offer, we are proud to offer you the Goodman GRVT801005CN gas furnace
Features
- This furnace is ideal to heat a small to medium house (in average climate conditions)
- 100,000 BTU 80% AFUE two stage variable speed natural gas furnace
- Requires metal flue venting
- Can be used in the upflow or horizontal orientation
- Can be converted to propane with an LP conversion kit (sold separately)
- Innovative design for electrical efficiency, safety, and lower sound output
Specifications
| Goodman 80% 100,000 BTU Variable Speed Two Stage Gas Furnace - 21" Width - Upflow / Horizontal |
| SKU |
GRVT801005CN |
| Weight (in lbs) |
124.000000 |
| Airflow Direction |
Upflow/Horizontal |
| Exhaust Flue Requirement |
Metal |
| R-32 Compliant |
Yes |
| Brand/Manufacturer |
Goodman |
| Product Features |
New Refrigerant Compliant |
| Furnace Efficiency / AFUE |
80% |
| Heating BTU |
100,000 |
| Blower Motor |
Variable Speed |
| Maximum CFM |
2000 |
| Configuration |
Upflow/Horizontal |
| Burner Stages |
Two |
| Fuel Type |
Propane, Natural Gas |
| Height |
33 3/8" |
| Width |
21" |
| Depth |
28" |
Manual
What our Experts Think
-
100,000 BTU Heating Power
Ideal for medium to large homes, delivering consistent warmth even during colder winter conditions.
-
Two-Stage Gas Valve for Comfort
Runs on low stage most of the time, increasing efficiency, reducing temperature swings, and improving overall comfort.
-
Variable Speed ECM Blower Motor
Automatically adjusts airflow for quieter operation, improved humidity control, and better energy efficiency.
-
80% AFUE Efficiency Rating
A dependable standard-efficiency furnace that balances heating performance with lower installation costs compared to high-efficiency venting systems.
-
Compact 21" Cabinet Design
The space-saving width makes installation easier in tighter utility rooms, closets, or basements.
-
Flexible Installation
Supports Upflow or Horizontal configurations, making it adaptable to a wide range of HVAC system layouts.
-
Modern Refrigerant Compatibility (R32 Systems)
Designed to work alongside newer HVAC systems using R32 refrigerant, helping future-proof your heating setup.
Q&A
Q: What size home can the Goodman 100,000 BTU furnace heat?
A: This 100,000 BTU gas furnace is ideal for medium to large homes, typically heating spaces around 2,000–3,000 sq. ft., depending on insulation, climate, and home layout.
Q: What does 80% AFUE efficiency mean?
A: An 80% AFUE rating means 80% of the fuel is converted into usable heat, while only 20% is lost through exhaust, providing reliable and cost-effective heating.
Q: What are the benefits of the two-stage heating system?
A: The two-stage gas valve runs on a lower setting most of the time for quieter operation, better temperature control, and improved energy efficiency, switching to full power only during colder conditions.
Q: How does the variable speed blower improve comfort?
A: The variable speed ECM blower motor adjusts airflow automatically, delivering more consistent temperatures, quieter performance, and improved indoor air circulation.
Q: Can this furnace be installed in different positions?
A: Yes. This model supports Upflow and Horizontal installation, making it suitable for closets, attics, basements, and utility spaces.
Q: What is the cabinet width of this furnace?
A: The unit has a 21-inch cabinet width, designed to fit many standard residential HVAC installations.
Q: What electrical requirements does this furnace have?
A: The Goodman GRVT801005CN operates on 115V standard household power, simplifying installation in most homes.
Q: Is this furnace compatible with modern HVAC systems?
A: Yes. It works well with central air conditioning systems, smart thermostats, and indoor air quality accessories when properly installed by an HVAC professional.
Q: What type of refrigerant is used with this system?
A: This system is designed for compatibility with R32 refrigerant, a more environmentally friendly option with lower global warming potential compared to older refrigerants.
Maintenance Tips
-
Replace or Clean Air Filters Regularly: Check the furnace filter every 1–3 months. A clean filter improves airflow, efficiency, and indoor air quality while preventing strain on the variable-speed blower motor.
-
Keep Vents and Registers Clear: Ensure all supply and return vents remain unobstructed by furniture, rugs, or dust buildup to maintain balanced airflow and optimal heating performance.
-
Schedule Annual Professional Tune-Ups: Have an HVAC technician inspect the burners, heat exchanger, gas pressure, ignition system, and two-stage operation at least once per year to ensure safe and efficient performance.
-
Inspect the Venting System: Periodically check flue pipes and exhaust vents for blockages, corrosion, or loose connections to ensure proper combustion gas ventilation.
-
Maintain the Surrounding Area: Keep the area around the furnace clean and free of debris, boxes, or flammable materials to support safe airflow and service access.
-
Check Thermostat Performance: Verify thermostat settings and calibration so the furnace’s variable-speed blower and two-stage heating operate efficiently.
-
Monitor Unusual Sounds or Odors: If you notice unusual noises, gas smells, or inconsistent heating, shut off the system and contact a qualified HVAC professional immediately.
Damage 
Loss 
Theft 
