Goodman - 80,000 BTU 80% Variable Speed Gas Furnace - 17.5" Width - Upflow / Horizontal - Two Stage - 115V - R32 - GRVT800803BN

Goodman - 80,000 BTU 80% Variable Speed Gas Furnace - 17.5" Width - Upflow / Horizontal - Two Stage - 115V - R32 - GRVT800803BN

The GRVT800803BN 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 GRVT800803BN gas furnace.

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

• Strong everyday heating: With 80,000 BTU and ~80% AFUE, this furnace delivers dependable warmth for small‑to‑medium homes at a practical cost.

• Two‑stage comfort: The two‑stage gas valve prioritizes low‑stage operation for most conditions, reducing temperature swings and noise vs single‑stage units.

• Variable‑speed blower advantage: The variable‑speed blower enables quieter operation, smoother airflow, and better humidity control for a more comfortable indoor environment.

• Flexible installation: Supports upflow and horizontal configurations, making it a versatile fit in basements, crawl spaces, attics, or closets.

• Compact footprint: At just 17.5″ width, it’s an excellent choice for tight mechanical spaces without sacrificing performance.

• Modern refrigerant readiness: Designed for compatibility with R‑32 refrigerant systems, aligning with current HVAC refrigerant standards.

Q&A

Q: What type of blower motor and staging does it use?
A: It features a variable‑speed ECM blower motor for quieter, energy‑efficient airflow and a two‑stage gas valve that adjusts heat output for improved comfort and reduced cycling.

Q: What installation orientations are supported?
A: This furnace supports upflow and horizontal (left/right) installation, offering flexibility for various HVAC setups and space constraints.

Q: What are the electrical and fuel requirements?
A: It runs on 115 V, single‑phase power and is designed for natural gas service, with LP propane convertible capability (kit sold separately).

Q: Does this model use modern refrigerant standards?
A: Yes — it’s R‑32 compliant, aligning with newer HVAC refrigerant requirements.

Q: What are the basic dimensions?
A: The unit measures approximately 17½ " wide × 28" deep × 33⅜ " high, ideal for standard utility or mechanical spaces.

Maintenance Tips

• Replace or clean air filters every 1–3 months to maintain airflow and protect the variable-speed blower.

• Keep supply and return vents clear for consistent heating performance.

• Check thermostat settings to ensure proper two-stage operation.

• Keep the furnace area clean and uncluttered for safe ventilation.

• Inspect venting system for blockages or leaks to ensure safe combustion.

• Monitor for unusual noises or odors and call an HVAC professional if needed.

• Schedule annual professional maintenance to inspect burners, heat exchanger, ignition system, and gas connections.