10 Best Natural Gas Generators 2025 in the United States

The Generac Guardian 26kW Home Standby Generator is designed to provide reliable whole-house power backup, delivering a strong 26,000 watts of clean and stable electricity suitable for most residential needs. It runs on natural gas or propane, which are cleaner fuels compared to gasoline, and the G-Force engine is built for durability and lower maintenance. The generator features an electronic ignition for easy automatic starting during outages and includes a 200 Amp transfer switch for seamless power transfer to your home.

In terms of noise, it is described as “super quiet” with a fully enclosed aluminum casing, helping it blend into outdoor environments without being too loud. At 518 pounds and fairly large dimensions, it is not portable and intended for fixed outdoor installation. The generator is designed for standby use during power outages rather than continuous operation.

Maintenance is simplified by the G-Force engine’s heavy-use capability and lower upkeep needs. WiFi connectivity allows remote monitoring of performance and status alerts. Installation requires a professional electrician due to complexity and safety considerations. With a 5-year warranty, this generator is a reliable, quiet, and relatively low-maintenance option for homeowners seeking automatic and seamless whole-house power protection, though it is less suitable for those needing portability or extended continuous run times.

The Generac 7210 24kW Air Cooled Guardian Series is a robust natural gas generator ideal for residential use, particularly during power outages. One of its standout features is the comprehensive power output of 24,000 watts, which can effectively keep an entire home running. The included 200-amp transfer switch ensures seamless integration with your home’s electrical system, providing peace of mind during emergencies.

A key strength of this generator is its smart controls, which include Wi-Fi connectivity for remote monitoring. Users can check the generator's performance and receive maintenance alerts via the Mobile Link app, making it simple to ensure everything is running smoothly even when you're not home. Additionally, the True Power Technology guarantees clean power with very low harmonic distortion, which is crucial for sensitive electronics.

In terms of installation and use, Generac recommends professional setup by a licensed electrician, which may be a drawback for DIY enthusiasts. The generator weighs 455 pounds, making it less portable than smaller models, but it is designed for permanent outdoor installation, which can be an advantage in terms of durability and functionality. The 5-year limited warranty offers added assurance, and while some users may find the noise level during operation to be higher than expected, this is a common trade-off for powerful generators. The Generac 7210 is a strong contender in the natural gas generator category, ideal for homeowners seeking reliable backup power with smart features. Its weight and installation needs may not suit everyone, and those looking for portable options should consider alternatives.

The Generac 7043 is a powerful standby generator designed for residential use, delivering a robust 22kW of clean, reliable power with minimal harmonic distortion. This makes it suitable for homeowners who want to ensure seamless electricity supply during outages, covering their entire house with the included 200-amp transfer switch. The generator's Wi-Fi connectivity allows for remote monitoring, letting users track performance and receive maintenance alerts straight from their smartphones—a fantastic feature for peace of mind when away from home.

In terms of noise level, it’s important to note that most standby generators can produce noticeable sound when operating. Portability might be a concern as this generator weighs 466 pounds, which indicates it’s intended as a stationary unit rather than one that can be easily moved.

The engine is built for performance, ensuring less frequent maintenance needs due to its durable design. The included 5-year warranty adds a layer of confidence for users regarding the longevity of the product. Installation will require a certified electrician, which could be an added cost for some homeowners. The price point of the Generac 7043 may be higher compared to smaller, less powerful generators, making it more of an investment. Additionally, potential buyers should consider their specific power needs, as those living in smaller homes or those who do not require whole-house coverage may find it excessive.