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Generac 7258 14kW Cellular Standby Generator

by Generac
SKU 7258-NG
$4,889.00

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Generac 7258 – 14kW Cellular Home Standby Generator

The Generac 7258 is a Next Generation air-cooled home standby generator designed for automatic residential backup power when utility service is interrupted. This model is rated as a 14kW standby generator for liquid propane or natural gas applications. It includes standard cellular connectivity with Mobile Link monitoring, Electronic Fuel & Ignition Control, oil level monitoring, and an advanced controller for improved system visibility. The 7258 is a generator-only configuration and does not include a transfer switch in the product information provided, making transfer equipment selection an important part of the installation plan. Final backup coverage should be confirmed by a qualified installer based on the home’s electrical loads, fuel setup, transfer switch selection, and local code requirements.

14kW Standby Power for Residential Backup Planning

The Generac 7258 is built as a 14kW air-cooled standby generator for residential backup applications. It should be sized around the home’s selected backup loads and paired with compatible transfer equipment selected by a qualified generator installer.

Liquid Propane or Natural Gas Operation

This standby generator supports liquid propane or natural gas, giving homeowners fuel flexibility based on property setup and local utility availability. Because actual backup coverage depends on connected loads and fuel setup, final sizing should be confirmed before installation.

Cellular Monitoring and Advanced Diagnostics

Standard cellular connectivity supports remote generator monitoring through Generac’s connected monitoring platform. The Next Generation platform also includes advanced diagnostic visibility, oil level monitoring through Mobile Link, and fuel pressure visibility while the engine is running.

Next Generation Air-Cooled Design for Outdoor Installation

The Generac 7258 belongs to Generac’s Next Generation air-cooled standby generator lineup. Its updated platform includes Electronic Fuel & Ignition Control, maintenance-free hydraulic lifters, easy-access enclosure panels, and a sloped roof design intended to reduce water, dirt, and ice buildup.

Generac 7258 14kW cellular home standby generator

The Generac 7258 is designed for homeowners planning automatic standby backup power with a generator-only configuration. Its 14kW rating, LP or natural gas fuel support, and cellular monitoring make it a practical option for residential properties when paired with properly selected transfer equipment.

With Electronic Fuel & Ignition Control, oil level monitoring, and advanced remote diagnostics, this Generac standby generator supports clearer backup readiness visibility. Final installation should be handled by a qualified professional to confirm transfer switch compatibility, load requirements, fuel setup, and code compliance.

Generac 7258 LP or natural gas air-cooled standby generator

Generac 7258 Features & Benefits

  • 14kW standby generator: Supports residential backup power planning when properly sized for the home’s selected loads.
  • Generator-only configuration: Allows compatible transfer equipment to be selected separately based on the installation requirements.
  • Liquid propane or natural gas operation: Supports two common standby generator fuel options based on the property’s available fuel setup.
  • Standard cellular connectivity: Enables remote generator monitoring through Generac’s connected monitoring ecosystem.
  • Electronic Fuel & Ignition Control: Supports improved cold starting, fuel use, and emissions performance compared with prior Guardian Series models, according to Generac’s published comparison language.
  • Oil level monitoring: Allows engine oil level visibility through the Mobile Link app.
  • 5-year limited warranty: Backed by Generac’s published limited warranty coverage for standby generators.

Need help choosing the right backup generator for your property?

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Generac 7258 Specifications

Brand Generac
Series Next Generation Air-Cooled Standby
Model 7258
Model Number G0072580
Product Type Air-Cooled Home Standby Generator
Generator Type Automatic Residential Standby Generator
Rated Power Output 14kW
Fuel Type Liquid Propane or Natural Gas
Voltage 120/240V
Phase Single Phase
Rated AC Frequency 60 Hz
Transfer Switch Included Not included in the provided product data
Connectivity / Monitoring Standard Cellular Connectivity with Mobile Link Monitoring
Controller Advanced Next Generation Controller
Electronic Fuel & Ignition Control Included
Oil Level Monitoring Supported via Mobile Link App
Fuel Pressure Sensor Included
Compatible Systems ecobee by Generac Thermostats and Generac PWRcell Battery Systems
Installation Type Permanent Outdoor Standby Installation
Warranty 5-Year Limited Warranty
Manufacturing Note Engineered and assembled in the USA using domestic and foreign parts

Generac 7258 Info

Generac 7258 User Manual

Generac 7258 Emissions Warranty