Goodman - 80,000 BTU 80% AFUE Variable Speed Gas Furnace - 21" Width - Upflow / Horizontal - Two Stage - 115V - R32 - GRVT800805CX

Goodman - 80,000 BTU 80% AFUE Variable Speed Gas Furnace - 21" Width - Upflow / Horizontal - Two Stage - 115V - R32 - GRVT800805CX

The Goodman GRVT800805CX 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)
• 80,000 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

Manual

• Installation Manual
• Specifications Sheet
  

What our Experts Think

• Efficient Mid‑Range Heating: The Goodman GRVT800805CX Gas Furnace delivers 80,000 BTU with 80% AFUE, offering reliable warmth and good fuel efficiency for moderate climate homes.

• Variable‑Speed Blower Comfort: The variable‑speed blower adjusts airflow to provide quieter operation, improved humidity control, and more even temperatures than single‑speed models.

• Two‑Stage Heating Performance: Two‑stage operation lets the unit run at a lower heat output most of the time, reducing temperature swings and increasing comfort consistency.

• Flexible Installation Width: With a 21" cabinet, this furnace fits upflow or horizontal configurations, making it a versatile fit for closets, basements, attics, or utility spaces.

• Durable Goodman Design: Built with quality components and a dependable heat exchanger, engineered for long‑lasting performance.

• Balanced Value & Comfort: Combines advanced airflow control, two‑stage heating, and solid efficiency at a budget‑friendly price point, making it a smart choice for dependable seasonal heating.

Q&A

Q: What heating capacity does this furnace provide?
A: The Goodman GRVT800805CX delivers 80,000 BTU input (~64,000 BTU output) — ideal for small to medium homes depending on insulation and climate.

Q: What does 80% AFUE mean?
A: 80% AFUE means about 80 ¢ of every dollar spent on fuel becomes usable heat, offering solid energy efficiency for everyday heating.

Q: What type of operation does it use?
A: It features a two‑stage gas valve and a variable‑speed ECM blower motor for quieter operation, better temperature control, and energy‑saving airflow.

Q: What installation options are supported?
A: This furnace supports upflow and horizontal installations, giving flexibility for attics, closets, basements, or crawlspaces.

Q: What power and venting does it need?
A: Runs on standard 115 V single‑phase power and requires metal flue venting typical for mid‑efficiency furnaces.

Q: Is it compatible with modern refrigerants?
A: Yes — it’s R32 compliant, so it meets requirements for systems using the newer refrigerant standard.

Q: Can it be converted to propane?
A: Yes — with a propane conversion kit (sold separately), offering flexibility for different fuel types.

Maintenance Tips

• Replace Air Filters Regularly: Inspect monthly and replace every 1–3 months to ensure proper airflow and protect the variable-speed blower.

• Keep Vents & Registers Clear: Avoid blocking supply and return vents for consistent heating and efficiency.

• Inspect Venting System: Check intake and exhaust pipes for debris, blockages, or damage to maintain safe operation.

• Clean Around the Furnace: Maintain 2–3 ft clearance to prevent dust buildup and allow proper airflow.

• Monitor Blower Performance: Variable-speed blowers should operate quietly and smoothly; unusual noises may indicate maintenance needs.

• Check Thermostat & Power Supply: Ensure thermostat settings, gas supply, and 115V circuit are functioning correctly.

• Schedule Annual Professional Service: A licensed HVAC technician should inspect burners, heat exchanger, gas pressure, ignition system, and safety controls yearly.