Goodman - 80,000 BTU 97% Variable Speed Modulating Gas Furnace - 17.5" Width - Downflow / Horizontal - 115V - R32 - GDVM970803BN

Goodman - 80,000 BTU 97% Variable Speed Modulating Gas Furnace - 17.5" Width - Downflow / Horizontal - 115V - R32 - GDVM970803BN

With a 97% efficiency rating, a variable-speed blower motor, and modulating gas valves, the GDVM970803BN is part of Goodman's top-tier furnace series. If you're looking to reduce your gas bill, the GDVM970803BN is an excellent choice, offering one of the best efficiency levels available on the market.

Features

• Ideal to heat a small to medium house (in an ideal climate)
• 80,000 BTU 97% AFUE modulating variable speed natural gas furnace
• Requires plastic/PVC flue venting
• Can be installed in the downflow 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

• Exceptional Efficiency: 97% AFUE with variable-speed modulation delivers precise, energy-saving heating.

• Optimal Heating: 80,000 BTU output ideal for medium to large homes.

• Flexible Installation: 17.5" width supports downflow or horizontal setups.

• Variable-Speed Comfort: Modulating operation ensures consistent temperature and quieter performance.

• Easy Integration: 115V power supply compatible with standard residential systems.

• Durable Design: Engineered for long-term reliability in diverse climates.

• Quiet Operation: Optimized for minimal noise during heating cycles.

Q&A

Q: What size home is this furnace designed to heat?
A: With 80,000 BTU input and 97% AFUE efficiency, this furnace is ideal for medium‑sized homes — efficiently converting nearly all fuel into heat to reduce energy costs.

Q: How efficient is this model?
A: It delivers 97% AFUE, meaning 97 % of the fuel’s energy becomes usable heat, making it one of the most efficient gas furnaces available.

Q: What does “variable speed modulating” mean?
A: The modulating gas valve and variable‑speed blower motor adjust heat output and airflow incrementally to match demand — resulting in even indoor temperature, quieter operation, and improved comfort.

Q: What installation orientations are supported?
A: Suitable for downflow or horizontal installations, providing flexible placement in attics, crawl spaces, or basements.

Q: What fuel types does it support?
A: Factory‑set for natural gas and can be converted to propane (LP) using an optional kit.

Q: What venting does this high‑efficiency furnace require?
A: As a condensing furnace, it typically uses plastic/PVC flue venting for efficient exhaust.

Q: What electrical requirements does it have?
A: Operates on 115 V single‑phase power, standard for residential furnaces.

Maintenance Tips

• Replace air filters every 1–3 months to maintain airflow and furnace efficiency.

• Keep supply and return vents clear of furniture, dust, and debris.

• Maintain 2–3 feet of clearance around the furnace for safe operation and proper airflow.

• Inspect the condensate drain line regularly to prevent clogs and water buildup.

• Check thermostat settings and operation to ensure proper modulating heating cycles.

• Examine vent pipes and connections for leaks or blockages.

• Listen for unusual noises such as rattling, humming, or uneven airflow indicating potential issues.

• Clean blower compartment and internal surfaces to prevent dust buildup.

• Test carbon monoxide detectors to ensure safe operation.

• Schedule annual professional maintenance to inspect burners, heat exchanger, gas connections, blower motor, and safety controls.