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Generac 3,300-Watt Gas Powered Portable Inverter vs Westinghouse

Updated July 2026 — Westinghouse leads on peak watts and running watts.

The Generac 3 is ideal for portability and light usage, while the Westinghouse 12500 Watt excels in power output and runtime for heavy-duty applications.

Why Generac 3,300-Watt Gas Powered Portable Inverter is better

Portability

Generac 3 is lightweight and compact.

Price

Generac 3 is cheaper by $150.

User-Friendly

Generac 3 has LED indicators for easy monitoring.

Why Westinghouse is better

Power Output

Westinghouse provides 12,500 peak watts.

Runtime

Westinghouse runs up to 12 hours on a full tank.

Dual Fuel

Westinghouse can operate on gasoline or propane.

Overall score

Generac 3,300-Watt Gas Powered Portable Inverter
75
Westinghouse
90

Specifications

SpecGenerac 3,300-Watt Gas Powered Portable InverterWestinghouse
Starting MethodManualRemote
USB Ports20
Engine Type4-Stroke4-Stroke
Safety FeaturesCOsenseLow Oil Shutdown
Warranty2 Years3 Years

Dimension comparison

Generac 3,300-Watt Gas Powered Portable InverterWestinghouse

Overview of the Generac 3 and Westinghouse 12500 Watt Generators

The Generac 3 and Westinghouse 12500 Watt generators cater to different needs and preferences in the generator market. The Generac 3 is aimed at portability and light usage, whereas the Westinghouse 12500 Watt generator is designed for heavy-duty applications and home backup. With a price difference of $150, the Generac 3 retails for $849.00 while the Westinghouse is priced at $999.00.

The Generac 3 is a 3,300-watt gas-powered portable inverter generator, ideal for camping, RV use, and as a backup power source at home. Its lightweight and compact design makes it easy to carry. In contrast, the Westinghouse 12500 Watt generator is a dual fuel powerhouse capable of producing 12,500 peak watts, making it better suited for powering large appliances and providing long-term backup during outages.

Power Output Comparison

When it comes to power output, the Westinghouse 12500 Watt generator significantly outshines the Generac 3. The Westinghouse offers 12,500 peak watts and 9,500 running watts when using gasoline, while it provides 11,200 peak watts and 8,500 running watts on propane. In contrast, the Generac 3 delivers a maximum of 3,300 watts.

This difference presents a clear advantage for the Westinghouse when it comes to powering multiple appliances or larger equipment during emergencies or outdoor activities. For example, the Westinghouse can easily handle the electrical needs of an air conditioner, refrigerator, and sump pump simultaneously, whereas the Generac 3 is better suited for smaller devices and light-duty tasks.

Fuel Efficiency and Runtime

The Generac 3 is designed with fuel efficiency in mind, offering an Economy Mode that adjusts engine speeds to reduce fuel consumption. While specific runtime details are not provided, it is implied that the Generac 3 operates efficiently for outdoor use.

On the other hand, the Westinghouse 12500 Watt generator boasts a remarkable runtime of up to 12 hours on a full 6.6-gallon fuel tank. This extended runtime makes it ideal for sustained use during power outages or long camping trips. The Westinghouse’s dual fuel capability also allows for flexibility, as it can run on either gasoline or propane, making it a versatile choice.

Portability and Design

The Generac 3 is particularly noted for its lightweight and compact design, making it an excellent choice for users who prioritize portability. Its small size and weight facilitate easy transport for camping trips and outdoor activities. This generator features USB ports for device charging, enhancing its usefulness in various scenarios.

In contrast, the Westinghouse 12500 Watt generator, while still portable, is bulkier and heavier due to its powerful engine and larger fuel tank. It comes equipped with heavy-duty never-flat wheels and a lift bracket for easier mobility, but it is not as convenient to carry around as the Generac 3. Therefore, if portability is a primary concern, the Generac 3 leads the way.

User-Friendly Features

The Generac 3 is equipped with several user-friendly features, including LED indicators for low oil and overload conditions, which provide peace of mind during operation. Additionally, it features parallel-ready capability, allowing users to connect two generators for increased power output if needed.

The Westinghouse 12500 Watt generator also excels in user-friendly design. It includes a remote start key fob for effortless operation from a distance, along with a digital hour meter that keeps track of run time and maintenance needs. Its multiple outlet options, including GFCI 120V outlets and a transfer switch-ready outlet, enhance its functionality for various applications.

Safety Features

Safety is a crucial consideration when selecting a generator. The Generac 3 features COsense Technology, which monitors carbon monoxide levels and automatically shuts down the generator if dangerous levels are detected. This feature is particularly important for users who plan to operate the generator in enclosed spaces.

Similarly, the Westinghouse 12500 Watt generator includes an automatic low oil shutdown feature, which protects the engine from damage due to low oil levels. Furthermore, it has rubber covers on its outlets to prevent accidental electrical shocks. Both models prioritize user safety, but the Generac 3's COsense Technology offers a unique edge for indoor safety.

Price Comparison

The Generac 3 is priced at $849.00, making it about 17% cheaper than the Westinghouse 12500 Watt generator, which retails for $999.00. While the price difference reflects the varying capabilities of the two generators, potential buyers should consider their specific power needs when making a decision.

For users who require a portable generator for light-duty tasks, the Generac 3 provides excellent value. However, for those needing substantial power for home backup or heavy-duty applications, the Westinghouse may justify its higher price with its performance capabilities and extensive features.

Which should you buy?

Choosing between the Generac 3 and the Westinghouse 12500 Watt generator ultimately depends on your power needs and intended use. If you are looking for a lightweight, portable generator for outdoor activities or home backup, the Generac 3 is a great choice, especially given its affordability at $849.00. However, if you require a robust generator capable of running multiple large appliances during power outages, the Westinghouse 12500 Watt generator, despite its higher price of $999.00, offers superior power output and runtime. Consider your specific requirements carefully to make the best decision for your needs.