The Goodman GRVT800804CN gas furnace is designed for homeowners looking for dependable heating with improved airflow control. This model combines two-stage heating with a variable-speed ECM blower to deliver more consistent comfort throughout the home.
The Goodman 80000 BTU gas furnace provides 80,000 BTU of maximum heating input and approximately 64,000 BTU of heating output. Its 21-inch cabinet design supports higher airflow requirements while maintaining flexible installation options.
The Goodman 80 AFUE furnace uses a non-condensing design that works with conventional metal flue venting. It converts around 80% of fuel energy into usable indoor heat during operation.
The Goodman variable-speed ECM furnace adjusts blower operation gradually instead of running at a single fixed speed. This helps provide smoother airflow during heating, cooling, and continuous fan operation.
Goodman GRVT800804CN Overview
The Goodman GRVT800804CN gas furnace features a two-stage gas valve that allows the furnace to operate at different heating levels. The low stage uses 56,000 BTU input, while the high stage provides the full 80,000 BTU input capacity.
A Goodman two-stage gas furnace can run at lower output during moderate weather conditions and increase capacity when additional heating is required. This staged approach helps maintain more stable indoor temperatures.
The Goodman 80000 BTU gas furnace includes ComfortBridge technology, an aluminized-steel tubular heat exchanger, and a silicon nitride ignition system for reliable operation.
Its 21-inch cabinet supports upflow and horizontal installation configurations, making it suitable for various residential equipment layouts.
Key Features of Goodman 80,000 BTU Gas Furnace
The Goodman GRVT800804CN gas furnace combines staged heating with a higher airflow blower system.
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80,000 BTU maximum heating input
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Approximately 64,000 BTU heating output
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56,000 BTU low-stage input
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Two-stage gas valve
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Variable-speed ECM blower motor
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Up to 1,600 CFM airflow
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21-inch cabinet width
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Upflow and horizontal installation options
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ComfortBridge technology
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Aluminized-steel tubular heat exchanger
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Silicon nitride hot surface igniter
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Self-diagnostic control board
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Multiple continuous fan speed options
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Natural gas operation with propane conversion capability
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R-32 refrigerant detection controls
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R-410A compatibility when properly configured
The Goodman variable-speed ECM furnace provides controlled airflow by gently increasing or decreasing blower speed based on system requirements. This helps reduce sudden airflow changes.
The Goodman two-stage gas furnace provides a lower heating stage for everyday operation and a higher stage when colder conditions require additional heat output.
Technical Specifications
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Specification
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Product Details
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Brand
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Goodman
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Model Number
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GRVT800804CN
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Product Type
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Gas Furnace
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Fuel Type
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Natural Gas
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Propane Convertible
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Yes
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AFUE Rating
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80%
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Maximum Heating Input
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80,000 BTU
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Maximum Heating Output
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Approximately 64,000 BTU
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Low-Stage Heating Input
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56,000 BTU
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Low-Stage Heating Output
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Approximately 44,800 BTU
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Heating Stages
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Two
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Blower Motor
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Variable-Speed ECM
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Airflow Capacity
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1,600 CFM
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Supported Cooling Capacity
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Approximately 3–4 tons
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Configuration
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Upflow / Horizontal
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Cabinet Width
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21 inches
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Heat Exchanger
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Aluminized-Steel Tubular
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Ignition Type
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Silicon Nitride Hot Surface Ignition
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Vent Type
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Metal Flue
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Refrigerant Compatibility
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R-32 / R-410A Compatible
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Electrical Supply
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115V, Single Phase, 60 Hz
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Minimum Circuit Ampacity
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7.75 Amps
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Maximum Breaker Size
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15 Amps
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Height
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33.375 inches
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Width
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21 inches
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Depth
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28 inches
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Weight
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118 lbs
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Specifications were verified from the AC Units for Less product listing and Goodman GRVT800804CN supplier information.
GRVT800804CN Dimensions & Capacity
The Goodman GRVT800804CN gas furnace uses a 21-inch C-size cabinet designed for higher airflow residential applications.
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Height: 33.375 inches
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Width: 21 inches
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Depth: 28 inches
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Weight: 118 lbs
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Maximum heating input: 80,000 BTU
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Maximum heating output: Approximately 64,000 BTU
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Airflow capacity: 1,600 CFM
The larger cabinet allows the Goodman variable-speed ECM furnace to support stronger airflow performance while maintaining a compact installation footprint.
Who Should Buy Goodman 80K BTU Gas Furnace?
The Goodman GRVT800804CN gas furnace may suit homeowners who need an 80,000 BTU heating system with two-stage operation and flexible airflow control.
The Goodman 80000 BTU gas furnace can work well for medium-sized homes when the heating requirement matches the unit’s capacity. Proper furnace sizing should consider insulation, climate, ductwork, and heat-loss calculations.
The Goodman 80 AFUE furnace may be suitable for properties designed around conventional metal-flue venting instead of high-efficiency condensing furnace vent systems.
Buyers planning to buy Goodman GRVT800804CN online should confirm cabinet size, airflow requirements, electrical specifications, and HVAC system compatibility before purchase.
Frequently Asked Questions
Q1. What is the heating capacity of this furnace?
The Goodman GRVT800804CN gas furnace has an 80,000 BTU input capacity and approximately 64,000 BTU heating output.
Q2. How does two-stage heating work?
The Goodman two-stage gas furnace operates at a lower heating stage during moderate demand and increases output when additional heat is required.
Q3. What does the ECM blower motor do?
The Goodman variable-speed ECM furnace adjusts airflow gradually to match heating, cooling, and continuous fan requirements.
Q4. What are the dimensions of this furnace?
The furnace measures 33.375 inches high, 21 inches wide, and 28 inches deep. The unit weighs approximately 118 lbs.
Q5. Does this furnace support horizontal installation?
Yes. The Goodman GRVT800804CN gas furnace supports upflow, horizontal-left, and horizontal-right installation positions.
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