Goodman - 80,000 BTU 80% Variable Speed Gas Furnace - 24.5" Width - Upflow / Horizontal - Two Stage - 115V - R32 - GRVT800805DN
The GRVT800805DN 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 GRVT800805DN 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
| SKU |
GRVT800805DN |
| Weight (in lbs) |
129.000000 |
| Airflow Direction |
Upflow/Horizontal |
| Exhaust Flue Requirement |
Metal |
| R-32 Compliant |
Yes |
| Brand/Manufacturer |
Goodman |
| Product Features |
New Refrigerant Compliant |
| Furnace Efficiency / AFUE |
80% |
| Heating BTU |
80,000 |
| Blower Motor |
Variable Speed |
| Maximum CFM |
2000 |
| Configuration |
Upflow/Horizontal |
| Burner Stages |
Two |
| Fuel Type |
Propane, Natural Gas |
| Height |
33 3/8" |
| Width |
24 1/2" |
| Depth |
28" |
Manual
What our Experts Think
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Reliable everyday heating: With 80,000 BTU and ~80% AFUE, this furnace delivers consistent, cost‑effective warmth for most small‑to‑mid sized homes.
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Two‑stage comfort boost: The two‑stage gas valve spends more time in low stage, which means quieter operation, smoother temperatures, and fewer cold/hot swings than single‑stage models.
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Variable‑speed blower perks: The variable‑speed blower motor enhances airflow control, quieter running, improved dehumidification, and better overall comfort.
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Flexible installation: Designed for upflow or horizontal installation, giving contractors more placement options in attics, closets, crawlspaces, or basements.
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Spacious footprint for ease: At 24.5″ width, this unit offers a roomier internal layout that can simplify service and airflow components.
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Modern refrigerant ecosystem: Compatible with R‑32 systems, aligning with current HVAC refrigerant standards.
Q&A
Q: What is the heating capacity and efficiency of the GRVT800805DN?
A: This furnace delivers 80,000 BTU input with ~64,000 BTU usable heat at 80% AFUE, offering efficient, reliable heating for small–medium homes.
Q: What blower and performance features does it include?
A: It uses a variable‑speed ECM blower motor for quieter operation, improved airflow control, and enhanced comfort compared with standard furnaces.
Q: Is this a two‑stage gas furnace?
A: Yes — the two‑stage gas valve allows lower output during mild weather and full power in cold conditions, boosting comfort and reducing temperature swings.
Q: What installation orientations are supported?
A: This model supports upflow and horizontal installation, giving versatility for attics, crawl spaces, closets, or tight utility areas.
Q: What electrical and fuel requirements does it have?
A: It runs on 115 V single‑phase power and is designed for natural gas, with LP conversion available (kit required).
Q: Is it compatible with modern refrigerant standards?
A: Yes — this furnace is R32‑ready, aligning with newer HVAC refrigerant regulations.
Q: What are the physical dimensions?
A: The unit’s 24.5‑inch width makes it suitable for standard residential HVAC spaces where larger cabinet size is acceptable.
Maintenance Tips
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Replace or clean air filters every 1–3 months to maintain airflow and protect the variable-speed blower.
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Keep supply and return vents clear for even heating and optimal performance.
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Check thermostat settings to ensure proper two-stage operation.
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Maintain a clean, clutter-free furnace area to support safe ventilation.
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Inspect venting system for blockages or leaks to ensure safe combustion.
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Monitor for unusual noises or odors and contact an HVAC professional if necessary.
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Schedule annual professional maintenance to inspect burners, heat exchanger, ignition system, and gas connections.
Damage 
Loss 
Theft 
