Generac 25kW Protector Series Liquid-Cooled Generator
- Base Model #: RG02515A
- Variant #: RG02515A
The #1 selling brand of home standby generators. Serving Greater Houston with reliable, automatic power protection.
Generac Standby Generator, 14kW | Cellular
Financing options offer you solutions that meet your budget.
Electronic fuel & ignition control optimizes fuel use for a more cost-efficient and lower emission back-up power solution.*
*On average versus Generac Guardian Series standby generators.
Long, best-in-class service intervals mean you spend less time on maintenance and more time enjoying the comfort that comes with owning a standby generator.
Remote diagnostics monitor your generator’s performance and help detect issues before they become a problem, helping you save time & money on maintenance.
Built-in Cellular Connectivity allows you to monitor performance and control your generator with Mobile Link whether you’re home or away.
Mobile LinkTM keeps you connected and provides real-time updates and maintenance alerts.*
*Requires Mobile Link TM premium subscription
Oil level sensors monitor oil level to help ensure generator readiness.
Improved cold start performance enables generator start-up in cold climates.
Sloped roof and rear air intake reduce risk of snow and ice intrusion.
Compatible with ecobee by Generac thermostats and Generac PWRcell battery systems to seamlessly monitor & control your home’s energy.
Every Generac Standby Generator comes with a 5-year limited warranty, and over 65 years of innovation behind it.
24/7/365 Customer Support Team is ready all day, every day, from our headquarters in Wisconsin to answer any questions you might have.
Generac generators and engines are engineered and assembled in the USA*.
*Using domestic and foreign parts
Is The Liquid-Cooled 25kW Right For Your Application?
The Generac 25kW Protector Series represents a step up to commercial-grade backup power. Unlike air-cooled residential generators, this liquid-cooled unit is engineered for extended runtime, higher duty cycles, and applications requiring maximum reliability and power quality.
Key Features
Built for Reliaility & Convenience
Liquid-Cooled Engine
Designed for extended runtime and higher duty cycles than air-cooled units.
Mobile Link™ Cellular Monitoring
Built-in cellular connectivity provides constant monitoring from anywhere. No WiFi required.
TruePower™ Technology
Hospital-grade power quality protects the most sensitive computers, and electronics.
Quiet-Test™ Mode
Programmable weekly, biweekly, or monthly self-tests at reduced RPM for quieter operation.
Automatic Operation
Detects power outages instantly and turns on automatically. No manual starting required.
5-Year Warranty
Comes standard with a 5-year limited warranty for peace of mind.
Downloads/Manuals
| File Type | Manual (PDF) | Item Number | Download |
|---|---|---|---|
| Emissions Warranty Statement | EWAR HSB | A0006652600 | English |
| Emissions Warranty Statement | EWAR HSB ES-MX | A0007528060 | Spanish |
| Emissions Warranty Statement | EWAR HSB FR-CA | A0007528063 | French |
| Emissions Warranty Statement | EWAR HSB PT | A0007528065 | Portuguese |
| Install Manual | IMNL G G 10-28kW 60HZ Y20 EN | A0004332575 | English |
| Install Manual | IMNL G G 10-28kW 60HZ Y20 ES-MEX | A0005151075 | Spanish |
Technical Specifications
| Specification | Value |
|---|---|
| Power Output | 25,000 Watts (25kw) |
| Fuel Type | Natural Gas/Liquid Propane |
| Voltage | 120/240 Single Phase |
| Engine | 4-Cylinder Inline Liquid-Cooled |
| Noise Level | Quiet-Test Mode Enabled |
| Controller | Evolution™ LCD Display |
| Weight | 777 lbs |
| Warranty | 5-Year Limited |
Trusted by Houston Homeowners for Over 20 Years
Don’t just take our word for it — see what our customers say
Flexible Financing Available
We offer competitive financing options to help fit a new generator into your budget.
Frequently Asked Questions
Get answers to common questions about generator installation
The 24kW Guardian Series provides 6,000 more watts than the 18kW (33% more power), allowing you to run larger homes (3,000-4,500 sq ft) or multiple high-demand appliances simultaneously. It features True Power™ Technology for superior power quality protecting sensitive electronics, and its compact design takes up 70% less space than competitive generators with similar output. The Guardian Series also includes the Evolution™ controller with an intuitive LCD display.
Yes. We pull all required electrical and gas permits for Houston, Harris County, and surrounding jurisdictions. We coordinate all inspections and ensure your installation passes code requirements. This is included in your installation price.
Yes. According to Remodeling Magazine’s Cost vs. Value report, standby generators provide a 50–65% ROI at resale in markets prone to outages. In Houston post-Harvey and post-Uri, generators have become a significant selling feature, particularly in neighborhoods that lost power for extended periods.
Generac home standby generators require service every 2 years or 200 hours of operation (whichever comes first). The unit automatically runs a self-test every week for 12 minutes. We offer prepaid maintenance plans and send reminders when service is due. Your first two services are included with installation.
Contact Our Team
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Professional electricians with years of experience in pool and spa lighting.
Direct Contact Available
Prefer to call? Reach us directly at (713) 467-1125
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