GENERAC 18KW HOME STANDBY GENERATOR
Model 7226 — 18,000W of automatic backup power for your Southwest Florida home. Never lose power again.
About the Generac 18kW
The Generac Guardian Series 18kW is the top of the Guardian line — the most powerful air-cooled generator in the compact Guardian enclosure. With 18,000 watts on natural gas, it delivers true whole-house coverage for larger Florida homes with multiple A/C zones, pool pumps, electric water heaters, and home offices. The same trusted G-Force 800 engine runs efficiently on both natural gas and propane, while the Evolution controller with LCD display gives you full system visibility at the unit. For Cape Coral and Fort Myers homeowners with 2,000+ square foot homes, the 18kW Guardian eliminates the guesswork of which circuits to protect — it powers everything.
Why choose the 18kW? Choose the 18kW Guardian if you have a larger home and want complete whole-house backup without stepping up to the bigger, heavier frame of the 22kW+ models. It's the most powerful unit in the compact Guardian enclosure, making it ideal for homeowners who want maximum power in a space-efficient package — especially important in Florida communities with tighter lot lines and HOA setback requirements.
Ideal For
Technical Specifications
| Model Number | 7226 |
| Series | Generac Guardian Series |
| Running Watts (Natural Gas) | 18,000W |
| Running Watts (LP) | 16,000W |
| Fuel Type | Natural Gas or Liquid Propane (Dual Fuel) |
| Engine | Generac G-Force 800 (800cc) |
| Controller | Evolution with Multilingual LCD Display |
| Weight | 420 lbs |
| Dimensions | 48.0" L x 25.0" W x 29.0" H |
| Oil Capacity | 2.2 qt |
| Battery | Group 26R 540 CCA / Group 35 AGM 650 CCA |
| Enclosure | Corrosion-Resistant Aluminum |
| WiFi Monitoring | Mobile Link (FREE) |
| Warranty | 5-Year Limited (7-Year Extended Available) |
| Certification | UL 2200, CSA C22.2 No. 100-14 |
Key Features
Mobile Link WiFi Monitoring
Monitor your generator's status from anywhere in the world using your smartphone, tablet, or computer. Get real-time alerts for power outages, maintenance reminders, and system status updates — all for free with every Generac home standby generator.
True Power Technology
Delivers clean, smooth electrical power with less than 5% total harmonic distortion (THD). This means safe, reliable power for sensitive electronics like computers, flat-screen TVs, and smart home systems — no voltage spikes or surges.
Quiet-Test Self-Test Mode
Runs the generator's weekly self-test at a lower, quieter RPM so it won't disturb your family or your neighbors. You'll know your generator is ready when you need it — without the noise.
Evolution Controller
The multilingual LCD display shows real-time system status, maintenance alerts, and operating data right at the unit. Easy-to-read interface lets you check battery voltage, engine RPM, and utility status at a glance.
G-Force Engine
Generac's purpose-built, pressure-lubricated engine is engineered specifically for generator use — unlike automotive-derived engines used by some competitors. Designed for thousands of hours of reliable operation with less routine maintenance.
Corrosion-Resistant Aluminum Enclosure
The tough aluminum enclosure stands up to Southwest Florida's salt air, humidity, and coastal weather conditions. Won't rust like steel enclosures, maintaining its appearance and structural integrity for years.
Peace of Mind in Southwest Florida
Living in Southwest Florida means embracing beautiful weather, waterfront living, and the reality of hurricane season. From June through November, tropical storms and hurricanes can knock out power for days — even weeks. Hurricane Ian in 2022 left hundreds of thousands of Lee County residents without electricity, some for over three weeks. When the power goes out, so does your air conditioning, refrigeration, security system, and medical equipment.
A Generac home standby generator changes everything. It sits outside your home, connected to your electrical panel and natural gas or propane supply. When it detects a power outage — whether from a hurricane, a thunderstorm, or a utility failure — it automatically starts and restores power to your home within seconds. No extension cords. No trips to the gas station. No manual startup. Just seamless, automatic protection for your family and your property.
The 18kW Generac is rated for homes 2,000 – 3,500 sq ft and provides whole-house coverage coverage — giving you the confidence to ride out any storm knowing your home is protected.
Ready to Protect Your Home?
Furnace Direct is a licensed Generac dealer serving Cape Coral, Fort Myers, and all of Southwest Florida.
Call us today for a free consultation and quote on the Generac 18kW.