Generac 14 kW Home Standby Generator 7258
Product Overview
The Generac 14kW Home Standby Generator Model 7258 is designed to provide automatic backup power for your home during power outages. It runs on natural gas or liquid propane, helping keep essential household systems and appliances operating when utility power is interrupted. Its permanently installed design provides a convenient backup power solution without the need to manually set up a portable generator during an emergency.
Key Features & Benefits
- Powered by the Generac G-Force 800 Series engine, this generator delivers 14,000 watts of standby power. Its air-cooled design and aluminum enclosure are built for outdoor installation. Electronic fuel and ignition controls help improve fuel efficiency, while the integrated oil-level monitoring system helps maintain generator readiness.
- Built-in cellular connectivity allows you to monitor generator performance remotely through Generac Mobile Link. The system can provide operating updates and maintenance alerts, with some features requiring a premium subscription. Improved cold-start performance and a sloped roof design help the generator operate in challenging weather conditions.
- The generator is designed to start automatically when a compatible transfer switch detects a utility power failure. Professional installation is required, including proper electrical connections, fuel supply, and compliance with local codes. The transfer switch and installation equipment should be confirmed before purchase, as they may not be included with this model.
- Product Type: Home Standby Generator
- Rated Output: 14,000 watts (14 kW)
- Fuel Type: Natural Gas or Liquid Propane
Detailed Product Description
Powered by the Generac G-Force 800 Series engine, this generator delivers 14,000 watts of standby power. Its air-cooled design and aluminum enclosure are built for outdoor installation. Electronic fuel and ignition controls help improve fuel efficiency, while the integrated oil-level monitoring system helps maintain generator readiness.
Built-in cellular connectivity allows you to monitor generator performance remotely through Generac Mobile Link. The system can provide operating updates and maintenance alerts, with some features requiring a premium subscription. Improved cold-start performance and a sloped roof design help the generator operate in challenging weather conditions.
The generator is designed to start automatically when a compatible transfer switch detects a utility power failure. Professional installation is required, including proper electrical connections, fuel supply, and compliance with local codes. The transfer switch and installation equipment should be confirmed before purchase, as they may not be included with this model.
Product Type: Home Standby Generator
Rated Output: 14,000 watts (14 kW)
Fuel Type: Natural Gas or Liquid Propane
Engine Series: Generac G-Force 800
Engine Displacement: 817cc
Cooling System: Air-Cooled
Main Circuit Breaker: 60 Amp
Enclosure Material: Aluminum
Controller: Power Zone 200
Connectivity: Built-In Cellular
Remote Monitoring: Generac Mobile Link
Oil Capacity: Approximately 2.5 quarts
Battery Requirement: 12V AGM battery, Group BTX20L, minimum 310 CCA
Weight: Approximately 391 lbs
Dimensions: 46.4 x 26.3 x 30.7 inches (L x W x H)
Sound Level: Approximately 65 dB(A) at 23 feet under normal-load test conditions
Warranty: 5-Year Limited Warranty, subject to manufacturer terms
The Generac 7258 is a practical choice for homeowners seeking dependable automatic backup power, remote monitoring, and a permanently installed generator designed for residential use.
Technical Specifications
| Product | Generac 14 kW Home Standby Generator 7258 |
|---|---|
| Category | Generators |
| Engine Displacement | 817 cc |
| Rated Output | 14 kW |
What’s Included
Package contents and optional accessories vary by the exact product configuration; refer to the included components and manufacturer documentation.
Applications
Backup power or outdoor power applications appropriate to the generator’s electrical rating, fuel type and installation requirements.
Care & Maintenance
- Inspect power cables, connections and ventilation before operation.
- Follow the manufacturer’s fuel, oil, battery and service schedule.
- Operate combustion generators outdoors, away from doors, windows and air intakes.
Warranty Information
Warranty coverage and service are subject to the applicable seller and manufacturer terms supplied with the product.

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