Goodman 80% AFUE 80K BTU Furnace Variable Speed Low NOx 21"W Upflow/Horizontal

Quick Facts

• 80,000 BTU 80% AFUE two-stage variable speed natural gas furnace
• Ideal for heating small to medium homes in average climate zones
• Requires metal flue venting
• Compatible with upflow and horizontal installation orientations
• Convertible to propane with an LP conversion kit (sold separately)
• Innovative design for energy efficiency, safety, and reduced sound levels

80,000 BTU Heating Capacity

With an 80,000 BTU input and 64,000 BTU output, the GRVT800805CX provides efficient heating power for small to medium-sized homes. Its two-stage design adjusts heat output to match demand, enhancing energy savings while maintaining comfort.

80% Efficiency Rating

Operating at 80% AFUE, this Goodman furnace converts 80% of fuel into usable heat while venting 20% during normal operation. Like other 80% efficient models, the GRVT800805CX requires metal flue venting for safe and proper installation.

Compliance Notice

Please note: The GRVT800805CX does not meet California Low NOx or Ultra-Low NOx emission regulations. It cannot be installed in counties or regions with stricter air quality requirements. Verify compliance before purchase if you live in California.

Two-Stage Variable Speed Performance

The GRVT800805CX combines a two-stage gas valve with a variable speed blower motor for more precise airflow, even temperatures, and reduced energy consumption. This design enhances indoor comfort while minimizing noise compared to traditional single-stage furnaces.

Durability and Reliability

Built with a heavy-duty tubular aluminized steel heat exchanger, the GRVT800805CX delivers efficient heat transfer and long-term strength. Its reinforced cabinet design reduces air leakage, lowers sound output, and protects critical internal components for lasting reliability and comfort.

Installation & Compatibility

The GRVT800805CX is factory-configured for natural gas but can be converted to propane with Goodman’s LP conversion kit (sold separately). Its versatile design supports both upflow and horizontal installation orientations, making it adaptable to a wide range of home layouts. Professional installation is recommended to ensure safety and optimal performance.

Why Choose the Goodman GRVT800805CX?

With advanced two-stage heating, a variable speed blower, strong durability, and Goodman’s trusted engineering, the GRVT800805CX is an excellent heating solution for homeowners seeking reliable comfort and energy-efficient performance.