Generac 7259 18kW Generator Features:
Generac 7259 18kW Air-Cooled Standby Generator Features:
The Generac 7259 is a powerful and efficient 18kW home standby generator, purpose-built to deliver continuous backup power to homes during outages. Equipped with advanced technology, a rugged engine, and remote monitoring capabilities, this air-cooled model is ideal for protecting whole-home systems or heavy-duty essential circuits—keeping your appliances, HVAC, and electronics running without interruption.
At the heart of the 7259 is the Generac G-Force 800 Series engine, a durable 817cc, 2-cylinder OHV engine specifically engineered for demanding standby use. Running at 3600 RPM, this engine features hydraulic lifters, a full-pressure lubrication system, and cast iron cylinder sleeves, allowing it to operate longer with minimal maintenance and superior performance—even in extreme conditions.
The generator produces 18kW on propane and 17kW on natural gas, maintaining excellent power output across fuel types without compromising efficiency. With True Power™ Technology, the 7259 delivers clean, utility-grade electricity with <5% total harmonic distortion (THD)—safe for modern electronics, home automation systems, and variable-speed HVAC equipment.
Smart management is handled by the integrated Power Zone™ 200 controller, a digital display that provides system status, maintenance alerts, exercise scheduling, and diagnostics. The 7259 also comes standard with Wi-Fi, Bluetooth, and Mobile Link™ connectivity, allowing homeowners to monitor and manage their generator remotely through a smartphone or computer, receive real-time notifications, and track fuel usage or battery health.
The unit’s Smart Exercise Mode allows the generator to skip its weekly self-test if it has already run in the last 72 hours—saving on fuel and reducing wear. When it does run, Quiet-Test™ mode lowers the engine speed, reducing the sound level to an impressively low 55 dB(A). At full load, the generator operates at just 65 dB(A).
Protected by a durable aluminum enclosure, the 7259 is wind-rated to 150 mph, finished in Generac’s corrosion-resistant Metro Gray powder coating, and approved for placement as close as 18 inches from a structure (per code). Routine maintenance is streamlined with easy-access panels and integrated LED service reminders.
Fuel consumption is highly efficient for its class, using approximately 235 ft³/hr of natural gas or 105 ft³/hr (2.87 gal/hr) of propane at full load. It also includes key safety features like low oil pressure shutdown, oil level sensor, and emergency shutdown button.
Key Features:
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18kW Air-Cooled Standby Output – Powers whole homes or essential circuits with high motor-starting capacity
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G-Force 800 Series Engine – 817cc OHV, hydraulic lifters, pressurized lubrication, and cast iron sleeves
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True Power™ Technology – Produces <5% THD and ±1% voltage regulation for sensitive electronics
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Power Zone™ 200 Controller – Multilingual digital display with real-time diagnostics and smart scheduling
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Mobile Link™ Enabled – Wi-Fi and Bluetooth standard for remote generator monitoring
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Quiet-Test™ Mode – Weekly low-RPM self-testing for quieter operation (55 dB(A))
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Aluminum Enclosure – Wind-rated to 150 mph, corrosion-resistant, with compact footprint
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Efficient Fuel Usage – Consumes 2.87 gal/hr LP or 235 ft³/hr NG at full load
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Flexible Placement – Install as close as 18 inches from your home (per code)
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5-Year Limited Warranty – Backed by Generac’s nationwide support network
The Generac 7259 delivers a smart, powerful, and quiet solution for home backup power—ideal for homeowners who want maximum reliability and remote control in a compact, easy-to-install package.
