Goodman - 100,000 BTU 80% Variable Speed Gas Furnace - 21" Width - Downflow / Horizontal - Two Stage - 115V - R32 - GDVT801005CX

Goodman - 100,000 BTU 80% Variable Speed Gas Furnace - 21" Width - Downflow / Horizontal - Two Stage - 115V - R32 - GDVT801005CX

The GDVT801005CX 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, and a lower emissions output to match the low NOx compliance regulations in California, we are proud to offer you the Goodman GDVT801005CX gas furnace.

Features

• This furnace is ideal to heat a medium-size house (in average climate conditions)
• 100,000 BTU 80% AFUE two stage variable speed natural gas furnace
• Low NOx Compliant
• Requires metal flue venting
• Can be used 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

• Balanced heating capacity: At 100,000 BTU with 80% AFUE, this furnace delivers strong, reliable heat for larger homes or colder climates without the premium cost of high‑efficiency models.

• Two‑stage comfort advantage: The two‑stage gas valve lets the system run mostly in low stage for everyday comfort, reducing temperature swings, noise, and cycling compared with single‑stage furnaces.

• Variable‑speed blower benefits: The variable‑speed ECM blower adjusts airflow for quieter operation, smoother temperature control, and better humidity management.

• Flexible installation: Supports both downflow and horizontal configurations, expanding fit options in attics, crawl spaces, or tight mechanical rooms.

• Modern refrigerant ready: Designed with R‑32 compatibility for systems using next‑generation refrigerant standards.

• Durable build & service access: Engineered with accessible panels and durable components to simplify maintenance and improve long‑term reliability.

Q&A

Q: What is the heating capacity and efficiency of the GDVT801005CX?
A: This furnace delivers 100,000 BTU input and ~80,000 BTU output with an 80 % AFUE rating, converting most fuel into usable heat for efficient, year‑round warmth.

Q: What type of blower and performance features does it include?
A: It uses a variable‑speed ECM blower motor that adjusts airflow smoothly for quieter operation, improved comfort control, and better energy use compared with fixed‑speed units.

Q: Is this a two‑stage furnace?
A: Yes — the two‑stage gas valve offers low‑stage heating for milder weather and high‑stage when it’s cold, enhancing comfort and reducing cycling.

Q: What installation orientations are supported?
A: The GDVT801005CX supports downflow and horizontal installation, providing flexibility for attics, closets, or crawl spaces.

Q: What fuel types can it use?
A: It’s configured for natural gas and is typically convertible to propane (with a field conversion kit), offering installation flexibility.

Q: What are the electrical and venting requirements?
A: The furnace runs on 115 V single‑phase power and requires approved metal venting, standard for mid‑efficiency gas furnaces.

Q: Does it support modern thermostat and control systems?
A: Yes — it’s compatible with single‑stage and communicating ComfortBridge™ controls for enhanced diagnostics and performance monitoring.

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 free of clutter to support safe ventilation.

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

• Monitor for unusual noises or odors and contact an HVAC professional if detected.

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