Briggs & Stratton PowerProtect™ DX 22kW Home Standby Generator
Our most popular whole-house generator. The PowerProtect™ DX 22kW (model 040780) is where performance meets value: a full 22kW on both natural gas and propane thanks to NGMax™ technology, 45 kVA of motor-starting muscle for air conditioners and well pumps, and the industry’s most comprehensive 10-year warranty — at a price that makes whole-home coverage attainable.
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Who Is the 22kW Right For?
The DX 22kW is the sweet spot for most single-family homes with 200-amp service: it powers the entire house — central air, kitchen, laundry, sump and well pumps, garage — without load-shedding compromises. Because NGMax™ delivers the full 22kW on natural gas, homes on NG don’t sacrifice capacity like they do with many competing units.
Key Features
- Full 22kW output on natural gas — no NG derating (NGMax™ technology)
- 45 kVA motor starting — best-in-class appliance startup performance
- 10-Year comprehensive warranty — labor, parts, and service, no out-of-pocket costs (up to $1,225 value)
- Quiet 68 dB(A) operation; 16-second Eco-Cise™ weekly self-test
- Dura-Zen™ corrosion-resistant aluminum enclosure; install as close as 18″ to the house
- Demand Response certified — eligible for utility programs and off-grid use
- Toolless panel removal for simpler maintenance
Specifications
| Model | 040780 |
| Running Power (LP) | 22 kW / 91.7 A |
| Running Power (NG) | 22 kW / 91.7 A |
| Motor Starting Power | 45 kVA |
| Voltage / Breaker | 120/240V, 100 A |
| Engine | Vanguard® commercial-grade, 993cc |
| Sound Level | 68 dB(A) |
| Fuel Use @ 50% Load | LP 217,000 BTU/hr · NG 194,000 BTU/hr |
| Dimensions (L×W×H) | 46.5″ × 26.8″ × 28.4″ |
| Weight | 465 lbs |
| Warranty | 10-year comprehensive (parts, labor, service) |
Professional Installation by GSHA Services
A completely installed 20kW-class system typically starts around $6,000 depending on gas meter distance, panel location, and site conditions — your free in-home consultation produces an exact quote covering generator, automatic transfer switch, labor, and materials. Financing through Synchrony, Service Finance Company, and Microf.
Want maximum starting power? See the PowerProtect+ DX 22kW. Need more capacity? See the DX 26kW, or return to the full DX lineup.
Call Today! (224) 220-3660 (224) 220-3660
Request a Free Quote
Send us your info below and we’ll follow up with a free, no-obligation estimate — or book your appointment online instantly, or email us at info@gshaservices.com.