Goodman - 100,000 BTU 80% Variable Speed Low NOx Gas Furnace - 21" Width - Upflow / Horizontal - Two Stage - 115V - R32 - GRVT801005CX

Goodman - 100,000 BTU 80% Variable Speed Low NOx Gas Furnace - 21" Width - Upflow / Horizontal - Two Stage - 115V - R32 - GRVT801005CX

The Goodman GRVT801005CX gas furnace is part of Goodman's top-of-the-line series, known for its exceptional performance. This low NOx furnace features a two-stage burner and a variable speed blower motor, ensuring optimal comfort and efficiency. With the outstanding durability and reliability that Goodman 80% efficient furnaces are known for, we are proud to offer you this high-quality heating solution.

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

Owner's Manual

• Installation Manual
• Specifications Sheet
  

What our Experts Think

• Strong, efficient heating performance: The Goodman GRVT801005CX 100,000 BTU 80 % AFUE gas furnace converts most of its fuel into usable heat (about 80 % efficiency), delivering robust warmth while keeping energy waste and utility costs in check.

• Two‑stage & variable‑speed comfort: A two‑stage gas valve plus variable‑speed ECM blower adjusts output based on demand for smoother temperature control, reduced cycling, quieter operation, and better humidity balance compared with single‑stage models.

• Advanced blower and controls: The efficient, variable‑speed circulator motor gently ramps airflow up or down, reducing noise and increasing comfort consistency throughout the home. Bluetooth diagnostic access with the CoolCloud app simplifies troubleshooting and setup.

• Low NOx emissions design: Engineered to meet Low NOx emissions standards for improved indoor and outdoor air quality, though it’s not compliant with certain strict California districts without special models.

• Versatile installation: Supports upflow or horizontal orientation, making it adaptable to various mechanical closets, attics, or retrofit applications without major ductwork changes.

• Durable and service‑ready build: Featuring a heavy‑gauge steel cabinet, silicon nitride igniter for long life, and self‑diagnostic control board for reliability and easier maintenance.

• Robust warranty support: Goodman typically offers 10‑year unit replacement and parts warranty plus up to 20‑year heat exchanger coverage with registration, giving homeowners long‑term peace of mind.

• Effective value choice: Experts see this furnace as a balanced, cost‑effective solution for homes needing dependable, adjustable heating performance with modern controls and comfort‑enhancing airflow.

Q&A

Q: What type of furnace is the Goodman GRVT801005CX?
A: The GRVT801005CX is a 100,000 BTU, 80% AFUE variable-speed, low NOx gas furnace designed for energy-efficient residential heating with reduced emissions.

Q: What size homes is this furnace suitable for?
A: This furnace is ideal for medium to large homes, depending on insulation, layout, and climate, delivering reliable heating for spaces that require up to 100,000 BTU output.

Q: What are the energy efficiency features?
A: The furnace provides 80% AFUE efficiency with a variable-speed blower and two-stage gas valve, offering precise airflow, quieter operation, and reduced energy use compared to standard single-stage furnaces.

Q: Does this furnace meet environmental standards?
A: Yes. It is a Low NOx (Nitrogen Oxides) certified furnace, designed to reduce harmful emissions and meet stricter environmental standards.

Q: What installation configurations are supported?
A: The GRVT801005CX supports upflow or horizontal installation, offering flexibility for attics, crawl spaces, or horizontal duct layouts.

Q: What are the electrical requirements?
A: The furnace operates on 115V single-phase power, suitable for standard residential wiring.

Q: What is the width of the furnace?
A: This model has a 21-inch cabinet width, allowing it to fit in tighter installation spaces.

Q: What refrigerant compatibility does it have?
A: While primarily a gas furnace, it is compatible with R‑32 refrigerant systems when paired with a matched air conditioner or heat pump for integrated HVAC solutions.

Maintenance Tips

• Replace air filters every 1–3 months: Maintains airflow, protects the variable-speed blower, and improves indoor air quality.

• Keep vents and registers unobstructed: Ensures balanced airflow for consistent heating and cooling.

• Inspect the furnace area: Keep surrounding space clear of dust, clutter, and flammable materials for safe operation.

• Check condensate drainage (if applicable): Ensure any secondary drain pans are clear to prevent water buildup.

• Monitor thermostat operation: Verify proper two-stage heating cycles and variable-speed blower function.

• Schedule annual professional service: A certified HVAC technician should inspect the heat exchanger, burners, blower motor, gas connections, and safety controls yearly.

• Inspect refrigerant line insulation (for connected AC): Ensure insulation is intact to maintain efficiency if paired with an R‑32 cooling system.