Generac vs. Cummins
Why Cummins is a "BUY" and generac is a "BYE"
When shopping for home standby generators, homeowners typically encounter several reputable brands including Cummins, Generac, Kohler, and Briggs & Stratton. Each manufacturer brings unique strengths to the residential backup power market.
Generac has established strong brand recognition through comprehensive marketing campaigns and holds a significant share of the residential generator market.
Cummins Power Generation leverages decades of experience manufacturing engines for commercial applications, trucks, marine vessels, and industrial power systems to offer residential solutions.
Product Range Overview
Generac offers air-cooled standby generators ranging from 7.5kW to 26kW, providing options for various home sizes and power requirements.
Cummins focuses on three air-cooled residential models: 13kW, 17kW, and 20kW units, targeting the most common household power needs. Cummins recommends liquid-cooled generators for higher kW needs citing engine cooling and better performance during prolonged outages.
Both manufacturers utilize similar engine technology for its air-cooled lineup and deliver comparable performance, with pricing remaining competitive across both product lines.
Technical Specifications Comparison
Engine Specifications
Both brands utilize similar 999cc, 2-cylinder engines, but several key differences emerge in overall system design:
Physical Characteristics
- Weight: Cummins units are approximately 143 pounds heavier than comparable Generac models, indicating more robust construction.
- Sound Levels: Cummins generators operate more quietly and are marketed as the quietest air-cooled generators in their class.
Performance Metrics
- Fuel Efficiency: Cummins units demonstrate approximately 15% better fuel efficiency compared to Generac models.
- Wind Resistance: Cummins units are rated for 180 mph winds versus Generac's 150 mph rating.
Certifications and Compliance
While both brands meet UL2200 and NFPA 37 standards, Cummins units also carry EPA and CSA certifications, which contribute to their superior fuel efficiency ratings.
Cummins Standout features
Cold Weather Performance
The Cummins RS20A operates reliably down to 0°F without additional equipment. An optional Cold Weather Kit extends operation capability to -40°F for extreme climate applications.
Smart Load Management
Built-in load management systems can automatically prioritize and cycle up to four high-power appliances, including air conditioners, electric ovens, dryers, and electric water heaters.
Maintenance and Monitoring
- Flexible Exercise Scheduling: Programmable monthly self-test routines help maintain system readiness while minimizing fuel consumption and engine wear. Generac's weekly test results in significantly more fuel consumption over time.
- Remote Monitoring: Smartphone and tablet connectivity allows homeowners to monitor generator status remotely at no additional subscription cost.
Professional Installation Considerations
Benchmark Electric offers 20+ years experience in the power generation arena and delivers turnkey installation solutions to homeowners and businesses. Customers have access to Benchmark's after-hours telephone line for support and emergency service.
Coverage Recommendations
The Cummins RS20A provides:
- Whole House Solution: Homes up to 2,000 square feet.
- Managed Whole House Coverage: Homes up to 3,000 square feet with load management.
The Bottom-Line
Although Benchmark Electric maintains and repairs generators from various brands, we exclusively install Cummins units for new customers. Our preference for Cummins stems from their superior noise reduction technology, proven dependability, and long-lasting construction quality that sets them apart from competing manufacturers.
For more information about whole house backup power solutions and professional installation services, contact Benchmark Electric today to schedule an onsite assessment and quote.