Bring reliable warmth and long-term efficiency to your home with the 40k BTU 80% AFUE Variable Speed MrCool VersaPro Gas Furnace (Model MGA80SE040A3C) — available from MRCOOL DIY Direct, the USA’s most trusted MRCOOL dealer.
Designed for small to mid-sized homes (750–900 sq. ft.), this VersaPro natural gas furnace combines compact design with robust heating performance. Delivering an 80% AFUE efficiency rating, the unit efficiently converts natural gas into consistent, even heat — saving on energy costs while keeping your space perfectly comfortable.
Equipped with a high-efficiency ECM variable speed blower motor, this furnace ensures quieter operation, enhanced airflow control, and compatibility with up to 2-ton cooling systems. The multi-position cabinet supports upflow, downflow, and horizontal configurations, making it ideal for versatile installations in tight spaces or custom HVAC setups.
With durable construction, standard 24V thermostat compatibility, and dual-side gas connections, the MrCool VersaPro 40k BTU furnace is engineered for performance, convenience, and longevity.
🌟 Product Highlights
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✅ 40,000 BTU heating output for spaces up to 900 sq. ft.
 
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✅ 80% AFUE efficiency for cost-effective gas heating
 
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✅ Variable-speed ECM blower motor for superior airflow control and quiet operation
 
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✅ Multi-position installation: upflow, downflow, or horizontal
 
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✅ Compact 14.5" cabinet – ideal for space-saving installs
 
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✅ Standard 24V thermostat compatible
 
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✅ Dual-side gas connections for flexible setup
 
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✅ AHRI Certified & ETL Listed for performance and safety assurance
 
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✅ 10-Year Parts Warranty and Lifetime Heat Exchanger Warranty with registration
 
⚙️ Technical Specifications
| Specification | 
Details | 
| Model | 
MGA80SE040A3C | 
| Brand | 
MRCOOL | 
| Series | 
VersaPro | 
| BTU Output | 
40,000 BTU | 
| AFUE Rating | 
80% | 
| Fuel Source | 
Natural Gas | 
| Cooling Compatibility | 
Up to 2 Ton | 
| Blower Motor | 
Variable-Speed ECM | 
| Gas Valve | 
Single Stage | 
| Voltage | 
120V | 
| Phase | 
1-Phase | 
| Installation Type | 
Upflow, Downflow, Horizontal | 
| Exhaust Pipe | 
Metal | 
| Vent Connection | 
4 inches | 
| Thermostat Compatibility | 
Standard 24V | 
| Max Overcurrent Protection | 
15 amps | 
| Coverage Area | 
750–900 sq. ft. | 
| Dimensions (H × L × W) | 
33.75" × 28.75" × 14.5" | 
| Weight | 
108 lbs | 
| Certifications | 
AHRI Certified, ETL Listed | 
| Warranty (Registered) | 
10-Year Parts, Lifetime Heat Exchanger | 
| Warranty (Unregistered) | 
5-Year Parts, 20-Year Heat Exchanger |