Best Gasoline Whole House Generators for Reliable Home Backup Power
When the power goes out unexpectedly, having a reliable gasoline whole house generator ensures your home stays powered, safe, and comfortable. This article reviews the top gasoline whole house generators available, offering powerful, dual fuel, and even tri-fuel options suitable for comprehensive home backup. Below is a summary of the five selected models we will explore, highlighting their key features and capabilities.
| Generator | Power Output (Watts) | Fuel Type | Special Features | Brand |
|---|---|---|---|---|
| DuroMax XP13000EH | 13,000 | Gas & Propane | Electric start, Transfer switch ready | DuroMax |
| Generac Guardian 24kW | 24,000 | Gasoline Standby | WiFi enabled, 200 Amp transfer switch, Aluminum build | Generac |
| DuroStar DS13000MX | 13,000 | Gas & Propane | CO Alert Safety, Remote electric start | DuroStar |
| DuroMax XP15000HX | 15,000 | Gas & Propane | CO Alert, Remote start, All copper windings | DuroMax |
| A-iPower 8200W Dual Fuel | 8,200 Starting / 6,500 Running | Gas & Propane | CO sensor, Multiple outlets, Sound level 68dB | A-iPower |
DuroMax XP13000EH 13,000-Watt Dual Fuel Portable Generator

The DuroMax XP13000EH portable generator delivers 13,000 watts of power, sufficient to run critical household systems during outages. Its dual fuel capability lets you switch between gasoline and propane, providing flexibility in fuel sources during emergencies. The robust DuroMax engine ensures durability and long-lasting performance. Its electric start allows easy operation without manual effort. This model is transfer switch ready, making it compatible with standard home electrical systems for seamless integration. Ideal for emergencies, RVs, and job sites, the XP13000EH is built to deliver whole home backup power reliably.
Generac Guardian 24kW Home Standby Generator with 200 Amp Switch

With an impressive 24,000-watt output, the Generac Guardian 24kW generator is a premium choice for whole house standby power. It includes a 200 Amp transfer switch mounted in a durable aluminum enclosure rated for outdoor installation. The WiFi-enabled G-Force engine permits remote monitoring of performance and maintenance alerts from any location, enhancing user convenience. Backed by a 5-year limited warranty, this unit signifies a reliable, long-term investment for homeowners who desire automated, hassle-free power backup solutions.
DuroStar DS13000MX 13,000-Watt Dual Fuel Generator

The DuroStar DS13000MX offers 13,000 watts of powerful energy and dual fuel capability for gasoline or propane use. Its CO Alert safety feature automatically shuts down the unit in dangerous carbon monoxide conditions, prioritizing family safety. This generator comes transfer switch ready and includes remote electric start functionality, providing ease of use. Its heavy-duty construction suits whole home backup, job site power, and RV camping, delivering versatility in various scenarios.
DuroMax XP15000HX 15,000-Watt Dual Fuel Portable Generator

The DuroMax XP15000HX delivers a robust 15,000 watts capacity with dual fuel support for gasoline and propane. It features an advanced 670cc OHV engine with all copper windings, improving generator durability and performance longevity. CO Alert safety technology is integrated to protect users from toxic fumes. The remote electric start enhances operational convenience, making this model a powerful and reliable option for whole house power, emergency use, and RV applications.
A-iPower 8200W Dual Fuel Portable Generator with CO Sensor

The A-iPower 8200W Dual Fuel generator operates on gasoline and propane with 8,200 starting watts and 6,500 running watts on gas. It is powered by a 322cc OHV performance series engine with a cast iron sleeve for improved heat dissipation and lifespan. Safety is enhanced by a built-in CO sensor indicator, and the control panel features multiple outlets including USB-A and USB-C ports. This model offers a quieter operation at 68 dB and is suited for job sites, RVs, and whole house emergency backup.
Buying Guide for Gasoline Whole House Generators
Power Output and Load Capacity
When selecting a whole house generator, determine the total wattage your home requires during an outage. This includes essential appliances and HVAC systems. Generators in the 13,000 to 24,000 watt range typically cover full home backup needs. Choose a model that can handle the starting surge wattage of devices like refrigerators and air conditioners.
Fuel Type and Flexibility
Gasoline is the most common fuel, easily accessible for emergencies. Dual fuel models provide the option to switch between gasoline and propane, which burns cleaner and has a longer shelf life. Tri-fuel generators add natural gas capability for added convenience. Consider the availability and storage of fuel when deciding which generator suits your needs.
Safety Features
Carbon monoxide (CO) detection and automatic shutdown systems are critical for safe generator operation, especially in residential settings. Look for models equipped with CO Alert or similar sensors. Transfer switch readiness is essential to safely connect your generator to home wiring and prevent dangerous backfeeding to utility lines.
Ease of Use and Features
Electric or remote start capabilities improve convenience, eliminating the need for manual recoil starts. Control panels with digital displays and multiple outlet types including USB can enhance usability. WiFi connectivity and remote monitoring allow performance tracking and maintenance alerts for added peace of mind.
Durability and Warranty
Generators with heavy-duty engines, such as OHV engines with copper windings, often last longer and perform better under load. Outdoor-rated enclosures protect the unit from elements. A solid warranty period, typically 3-5 years, reflects manufacturer confidence and provides buyer security.