Description
Industrial-Grade Power for Whole Home Backup & Heavy-Duty Applications
The Generac GP18000EFI delivers 22,500 peak watts and 18,000 running watts of clean, stable power with less than 5% THD, making it ideal for powering entire homes and sensitive electronics. Featuring an 816cc EFI engine for optimal fuel efficiency, COsense® carbon monoxide protection, and TruePower™ technology, this generator combines professional-grade performance with advanced safety features.
Key Features & Benefits
Power & Performance
✔ 22,500 Peak Watts / 18,000 Running Watts – Powers entire homes and heavy equipment
✔ 816cc EFI Engine – Electronic Fuel Injection for better efficiency and cold weather performance
✔ Extended Runtime – 9 hours at 50% load (14.2-gallon tank)
✔ TruePower™ Technology – <5% THD for safe operation of sensitive electronics
Smart Operation & Safety
✔ COsense® Technology – Automatic shutdown at dangerous CO levels
✔ Electric Start with Included Battery – Hassle-free ignition
✔ Low Oil Shutdown – Protects engine from damage
✔ Hour Meter – Tracks maintenance intervals
Professional Connectivity
✔ Homelink™ Transfer Switch Compatible – Seamless integration for whole-home backup
✔ Multiple Outlet Options (configurations may vary):
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120/240V 50A outlet – For heavy appliances
-
120V 30A outlets – For tools and equipment
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GFCI protected outlets – Safe for household use
Durable Construction
✔ 1.25" Steel Tube Cradle – Industrial-strength frame
✔ Never-Flat Wheels – Heavy-duty transport (469 lbs)
✔ Large Fuel Tank with Gauge – 14.2-gallon capacity
Technical Specifications
Power Output
| Category |
Specification |
| Peak Watts |
22,500W |
| Running Watts |
18,000W |
| Runtime @ 50% Load |
9 hours |
Engine & Fuel System
| Feature |
Details |
| Engine Type |
816cc 4-Stroke EFI |
| Starting System |
Electric (Battery Included) |
| Fuel Tank Capacity |
14.2 gallons |
| Oil Capacity |
Not specified (check manual) |
| Low Oil Shutdown |
Yes |
Dimensions & Weight
| Feature |
Details |
| Dimensions (LxWxH) |
58.5" x 30.9" x 36.5" |
| Weight |
469 lbs |
| Wheels |
Heavy-duty never-flat |
Electrical Specifications
| Feature |
Details |
| THD |
<5% |
| Voltage |
120/240V |
| Transfer Switch Ready |
Yes (Homelink™ compatible) |
Certifications & Warranty
| Feature |
Details |
| Warranty |
3-Year Limited |
| CARB Compliant |
No |
| Safety Standards |
Meets all applicable safety regulations |
Why Choose the GP18000EFI?
✅ EFI Engine – Superior fuel efficiency and cold weather starting
✅ Whole Home Backup – Powers essential circuits during outages
✅ CO Protection – Automatic shutdown for safety
✅ Industrial Durability – Steel frame construction
✅ Clean Power – Safe for computers and medical equipment
Perfect For:
-
Whole Home Backup (When paired with transfer switch)
-
Construction Sites (Powering heavy tools and equipment)
-
Farm & Agricultural Use (Running pumps and machinery)
-
Emergency Response (Disaster relief operations)
Includes:
