Best 100 Amp Propane Generator Options for Home Backup
The following article highlights top generators that can run on propane and come with high wattage outputs suitable for larger homes or remote power needs. Each model supports dual-fuel or tri-fuel configurations, remote start, transfer switch readiness, and safety features. Read on to compare capabilities and key considerations for selecting a dependable propane generator.
Summary of Selected Products
| Product | Fuel Types | Peak Watts | Running Watts | Special Features |
|---|---|---|---|---|
| Westinghouse 14500 Peak Watt Tri-Fuel | Gas/Propane/Natural Gas | 14,500 | 11,500 (Gas) | Remote start, transfer switch ready, long run times |
| Westinghouse 12500 Peak Watt Tri-Fuel | Gas/Propane/Natural Gas | 12,500 | 9,500 (Gas) | Remote start, variety of outlets, CO/lite safety |
| Westinghouse 12500 Watt Dual Fuel | Gas/Propane | 12,500 | 9,500 (Gas) | Digital hour meter, VFT display |
| Westinghouse 12500 Peak Watt Dual Fuel (CO Sensor) | Gas/Propane | 12,500 | 9,500 (Gas) | CO sensor, sturdy safety features, multiple outlets |
| PowerSmart 3800 Watt Dual Fuel | Gas/Propane | 3,800 | 3,300 (Gas) | Quiet operation, inverter power for electronics, RV ready |
Westinghouse 14500 Peak Watt Tri-Fuel

The Westinghouse 14500 Peak Watt Tri-Fuel generator offers flexible fuel options—gasoline, propane, and natural gas—making it suitable for home backup in diverse situations. It provides up to 14,500 peak watts and 11,500 running watts on gasoline, with slightly lower running figures on propane and natural gas. A heavy-duty 550cc engine ensures robust performance, while a large 9.5-gallon tank supports lengthy runtime. The unit includes a remote electric start and is designed to be transfer-switch ready, enabling rapid connection to home circuits during outages. For propane users, it can be a practical emergency power source for essential circuits.
Westinghouse 12500 Peak Watt Tri-Fuel

This tri-fuel Westinghouse model delivers 12,500 peak watts and up to 9,500 running watts on gasoline, with higher efficiency on propane and natural gas. It features remote start via included key fob, electric and recoil start options, and a long runtime (up to 12 hours on a 6.6-gallon tank). The generator is designed with multiple outlets, including transfer switch-ready configurations and RV-capable outlets. A digital hour meter and automatic low oil shutdown add reliability for longer outages and unattended operation.
Westinghouse 12500 Watt Dual Fuel

This dual-fuel unit offers 12,500 peak watts and 9,500 running watts on gasoline, with propane performance at 11,200 peak and 8,500 running watts. It includes a remote start with a key fob and both electric and recoil start options. A 6.6-gallon fuel tank with a fuel gauge supports up to roughly 12 hours of operation, depending on fuel. The generator provides multiple outlets, including RV-ready capabilities, and a digital hour meter paired with a cast-iron sleeve engine for durability.
Westinghouse 12500 Peak Watt Dual Fuel (CO Sensor)

This model mirrors the dual-fuel design with 12,500 peak watts and 9,500 running watts on gasoline, plus 11,200 peak and 8,500 running watts on propane. It adds a carbon monoxide sensor for enhanced safety during operation. Features include a remote start with a key fob, a 6.6-gallon fuel tank with gauge, transfer switch-ready outlets, and a digital hour meter. The CO sensor helps monitor indoor air quality during generator use, making it appealing for home backup scenarios where occupants are present.
PowerSmart 3800 Watt Dual Fuel Inverter

The PowerSmart inverter generator offers dual-fuel capability (gasoline and propane) with 3,800 surge watts and 3,300 rated watts on gasoline, and 3,500 surge watts with 3,100 rated watts on propane. It emphasizes quiet operation (about 70dB at 23 feet) and clean power suitable for sensitive electronics thanks to a pure sine wave output with less than 3% total harmonic distortion. It is RV-ready and well-suited for camping, tailgating, or home backup where noise and power quality matter, while still providing enough wattage for essential appliances and devices.
Westinghouse 13500 Peak Watt Tri-Fuel

This tri-fuel generator provides 13,500 peak watts and 10,500 running watts on gasoline, with propane and natural gas performance at different levels. It includes remote electric start and transfer switch readiness, plus a sizable 9.5-gallon tank for extended runtimes and a digital hour meter. A durable Westinghouse engine with a cast-iron sleeve supports long-term use, while dual electrical outlets and RV-ready options increase versatility for home backup and outdoor events alike.
Westinghouse Outdoor Power Equipment 14500 Peak Watt

This outdoor power equipment model shares the same core capability of 14,500 peak watts and 11,500 running watts on gasoline, with propane and natural gas options. It is designed for larger homes and longer outages, featuring a large fuel-tank and a built-in fuel gauge. It emphasizes portability, remote/electric start, and transfer switch readiness, making it a strong option for homeowners seeking robust, long-lasting backup power in diverse fuel scenarios.
Buying Guide: Key Considerations For Choosing A 100 Amp Propane Generator
Power output and fuel flexibility: For reliable backup power, assess peak versus running watts and ensure propane compatibility. Tri-fuel or dual-fuel models provide resilience if one fuel source is unavailable.
Starting method and control: Remote electric start, key fob, or manual recoil start influence convenience during emergencies. Transfer switch readiness simplifies integrating with home circuits.
Runtime and tank size: Longer runtimes reduce refueling needs during outages. Tank capacity (gallons) and fuel gauge functionality help plan power usage more effectively.
Safety features: Look for automatic low-oil shutdown, CO sensors, and rubber-covered outlets to protect users and appliances from voltage spikes and exposure to the elements.
Outlets and compatibility: Ensure the generator supplies standard 120V and, if needed, 240V options for RVs and larger circuits. RV-ready and L14-30R/14-50R receptacles offer flexibility for different loads.
Engine durability: A cast-iron sleeve and robust OHV engines typically deliver longer life under repeated cycling and high-load conditions.
Noise and portability: Inverter-based models tend to run more quietly and deliver clean power for electronics, though they may offer lower peak outputs than traditional open-frame units. Consider the balance between quiet operation and available wattage for your specific needs.