Exploring powerful, large-capacity portable generators helps homeowners stay prepared for outages and worksites. The selections below focus on tri-fuel and dual/fuel models capable of delivering substantial peak and running watts, with features like electric start, transfer-switch readiness, and CO sensors. This guide highlights five top options and key considerations to help you compare performance, reliability, and ease of use.
| Product | Brand | Approximate Power (Peak / Running) | Fuel Types | Notable Features |
|---|---|---|---|---|
| Westinghouse 14500 Peak Watt Tri-Fuel | Westinghouse Store | 14,500 / 11,500 (Gas) • 13,500 / 10,500 (Propane) • 12,000 / 9,500 (Natural Gas) | Gas, Propane, Natural Gas | Remote start, transfer switch ready, long run time |
| WEN 11000-Watt DF1100T | WEN Store | 11,000 / 8,300 (Gas) • 9,500 / 7,500 (Propane) | Gas, Propane | Dual fuel, wheel kit, electric start |
| Westinghouse 18000 Peak Watt Tri-Fuel | Westinghouse Store | 18,000 / 14,500 (Gas) • 16,000 / 13,000 (Propane) • 14,400 / 11,600 (Natural Gas) | Gas, Propane, Natural Gas | CO sensor, VFT data center, robust engine |
| Westinghouse 28000 Peak Watt Tri-Fuel | Westinghouse Store | 28,000 / 20,000 (Gas) • 25,200 / 18,000 (Propane) • 22,400 / 16,000 (Natural Gas) | Gas, Propane, Natural Gas | Large run time, wide outlet options |
| DuroMax XP13000EH | DuroMax Store | 13,000 / — (Dual Fuel) | Gas, Propane | Electric start, whole-home backup |
Note: Each model offers distinct advantages for different scenarios, including home backup, job sites, or remote work. When evaluating, consider fuel availability, noise levels, runtime at typical loads, and the ease of integration with a transfer switch.
Westinghouse 14500 Peak Twin Fuel Generator

The Westinghouse 14500 Peak Watt tri-fuel model combines substantial power with versatility. It runs on gasoline, propane, or natural gas, delivering up to 14,500 peak watts (gas) and 11,500 running watts, or optimized figures for propane and natural gas. A heavy-duty 550cc 4-stroke OHV engine supports long runtimes, and the unit can operate up to 19 hours on a full 9.5-gallon tank. For larger homes or remote worksites, the tri-fuel capability reduces fuel logistics. The remote electric start adds convenience, while transfer-switch readiness simplifies integration with home electrical systems.
WEN 11,000-Watt DF1100T Dual Fuel Generator

The WEN DF1100T offers seamless switching between gasoline and propane with a straightforward dial, delivering 11,000 surge watts (gas) and 8,300 running watts, or 9,500 surge watts and 7,500 running watts on propane. It operates at 120V/240V, making it well-suited for transfer switches and emergency backups. An electric start powers the 457cc four-stroke OHV engine, allowing quick ignition at the touch of a key. The built-in wheel kit enhances portability for job sites or home use, with a balance of power, reliability, and mobility.
Westinghouse 18000 Peak Watt Tri-Fuel Generator

This unit expands power availability with 18,000 peak watts on gasoline and 14,500 running watts, plus 16,000/13,000 on propane and 14,400/11,600 on natural gas. A 713cc V-Twin OHV engine provides robust performance, while CO sensing adds a safety layer for indoor or semi-enclosed environments. With a 10.5-gallon tank, it delivers up to 16 hours at 25% load. The digital readout keeps track of voltage, frequency, and lifetime hours, and multiple outlets offer transfer-switch compatibility and interlock options for secure, automated operation.
Westinghouse 28000 Peak Watt Tri-Fuel Generator

Designed for substantial power needs, the 28000 peak-watt model supports gasoline at 28,000 peak watts and 20,000 running watts, propane at 25,200/18,000, and natural gas at 22,400/16,000. It provides run times up to 13 hours at 25% load on a 17.2-gallon tank with a gauge. This tri-fuel workhorse includes a heavy-duty 999cc V-Twin OHV engine, reinforced steel handles with quick-release pins, automatic low-oil shutdown, and a digital readout for lifetime hours, volts, and frequency. A broad outlet configuration and transfer-switch readiness enable flexible home backup or job site use.
DuroMax XP13000EH 13,000-Watt Dual Fuel

The XP13000EH provides 13,000 watts of power with dual-fuel capability, making it a solid option for whole-home backup during emergencies. DuroMax generators are built around a robust engine designed for power and durability, with an electric start for easy ignition. The dual-fuel design ensures flexibility in fuel sources when gasoline is scarce or propane is preferred for odor or safety reasons. This model emphasizes reliability and user-friendly operation for home systems and larger setups.
Buying Guide: Key Purchase Considerations
- Power needs and fuel options: Assess your home’s peak load and typical running watts. Tri-fuel units offer maximum flexibility if you have limited fuel infrastructure or want to run larger appliances simultaneously.
- Starting method and control: Electric start is convenient, but manual options or remote start may matter for accessibility. A digital readout for volts, frequency, and runtime helps with monitoring and maintenance.
- Runtime and fuel capacity: Larger fuel tanks extend operation between fills, but weight and portability matter for relocation or campsite use. Consider online run-time estimates at your expected load.
- Transfer switch readiness and safety: Ensure compatibility with your home transfer switch and interlock kits. Look for automatic low-oil shutdown and CO sensors if available.
- Outlets and power distribution: Verify the availability of 120V/240V outlets, 50A and 30A options, and protective covers to withstand weather and dust.
- Portability and build quality: Heavy-gauge frames, reinforced handles, and quality engines impact long-term durability in storms, job sites, or RV use.
- Noise considerations: Higher-watt units can be louder. If noise is a concern, compare decibel ratings or select models with noise-reduction features or enclosure options.
- Maintenance and support: Evaluate warranty terms, available parts, and ease of servicing in your region. A vendor with strong customer support reduces downtime after outages.
- Safety and emissions: CO sensors, low-idle modes, and THD (Total Harmonic Distortion) under 5% help protect sensitive electronics and improve overall safety.