Generac 10/9kW Air-Cooled Stanby Generator

Model Number: 7257

The Generac 7257 is a 10 kW (propane) / 9 kW (natural gas) air‑cooled standby generator designed for residential backup power, featuring built‑in Wi‑Fi, Bluetooth, and cellular connectivity for remote monitoring, plus Generac’s G‑Force engine for durability and reduced maintenance. It provides clean, utility‑quality power with less than 5% harmonic distortion, making it safe for sensitive electronics.

The next generation of Generac air-cooled standby generator is the most advanced and powerful line of air-cooled standby generators, providing unparalleled peace of mind. Electronic fuel and ignition control (EFIC) produces the industry's highest output power, better fuel economy*, and lower emissions*. The new advanced controller enhances system monitoring, while the integrated cellular connectivity delivers the highest connection quality. Advanced remote diagnostics paired with the longest service intervals provide the lowest total cost of ownership.

Features:

• Standard Cellular Connectivity delivers faster connections, greater reliability, and better coverage (US &CAN)
• Electronic Fuel & Ignition Control (EFIC) improves cold starting performance, lower fuel consumption (less operating cost)*, and lower emissions*
  • New Engine Design with Maintenance Free Hydraulic Lifters enables a lower preventative maintenance cost
• Oil Level Monitoring allows you to verify engine oil level remotely via the Mobile Link app
• New Controller with Advanced Remote Diagnostic using the Field Pro app provides a higher-level of peace of mind with cellular connectivity, more processing power (provides 4x more diagnostic codes versus Guardian), and provides confirmation of power transfers to the home
• New Enclosure Design includes easy to remove panels and easy access to customer connection points. The new design better matches the latest trends in home design and exterior colors, while the sloped roof reduces water, dirt, ice build up, and prevents staining
• Fuel Pressure Sensor helps diagnose issues with the visibility to fuel pressure when the engine is running
• Every Generac Standby Generator comes with a 5-year limited warranty
• 24/7/365 Customer Support Team is ready all day, every day, from our headquarters in Wisconsin to answer any questions you might have.
• Compatible with ecobee by Generac thermostats and Generac PWRcell battery systems
• Generac generators and engines are engineered and assembled in the USA

Specification:

• Generator
  • Rated maximum continuous power capacity (LP/NG): 10 kW LP / 9 kW NG
  • Rated voltage: 240 V
  • Rated maximum continuous load current (240 V LP/NG): 42/38
  • Total harmonic distortion: <5%
  • Main line circuit breaker: 45 A
  • Phase: 1
  • Number of rotor poles: 2
  • Rated AC frequency: 60 Hz
  • Power factor: 1.0
  • Battery requirement: 12volts,AGMPowersportBatteryGroupBTX20L310CCA minimum
  • Unit weight: 334 / 156
  • Dimensions (L×W×H): 46.4x26.3x30.7/117.9x66.8x77.9
  • Sound output at 23 ft (7 m) withgeneratoroperatingatnormal load: 61
  • Soundoutput indB(A)at23ft(7m)withgenerator inQuiet-Test™low-speedexercisemode: 49
  • Exercise duration: Adjustable5-20min(5minfactorydefault)
• Engine
  • Engine type: Generac G‑Force 400 Series
  • Number of cylinders: 1
  • Displacement: 459 cc
  • Cylinder block: Aluminum
  • Valve arrangement: OHV
  • Lifter type: Hydraulic
  • Ignition system: Solid‑state with magneto
  • Governor system: Electronic
  • Compression ratio: 9.5:1
  • Starter: 12 V DC
  • Oil capacity including filter: Approx.1.4qt(1.3L)
  • Operating rpm: 3,600
  • Fuel consumption (Natural Gas):
    • Half load: 98(2.77)
    • Full load: 132(3.74)
  • Fuel consumption (Liquid Propane):
    • Half load: 35(0.94)[3.55]
    • Full load: 58(1.60)[6.07]

Info and Guides:

Click Here for Spec Sheet
*Spec sheet might include optional accessories not included with this purchase



For safety and compliance reasons, this item is classified as non-returnable. All purchases are final and no returns, refunds, or exchanges will be permitted for any reason. Customers are responsible for verifying all specifications prior to purchase.