If you’re seeking a backup power solution that keeps your home running during outages and works with a natural gas line, consider a tri-fuel generator. These units run on gasoline, propane, or natural gas, offering flexibility and resilience for varied needs. The top options below are best for larger homes, frequent outages, and jobsites where reliable power is critical. They’re suited for homeowners who want continuous power without swapping fuel types mid-emergency, and for those who expect long run times and remote start convenience.
Summary table of selected products
| Product | Best For | Key Benefit |
|---|---|---|
| Westinghouse 14500 Peak Watt Tri-Fuel Home Backup Portable Generator | Larger homes needing robust peak power | Highest peak watts among tri-fuel options |
| Westinghouse 13500 Peak Watt Dual Fuel Home Backup Portable Generator | Mid-size homes with flexible fuel | Strong power with dual-fuel versatility |
| Westinghouse 8200 Peak Watt Tri-Fuel Portable Inverter Generator | Electronics-heavy loads and quiet operation | Inverter efficiency with CO sensor |
| Westinghouse 18000 Peak Watt Tri-Fuel Home Backup Portable Generator | Very large homes and demanding outages | Massive tri-fuel power with CO sensor |
| DuroMax XP13000HXT Tri Fuel Generator | Flexible fuel on a budget | CO alert and triple-fuel capability |
Westinghouse 14500 Peak Watt Tri-Fuel Home Backup Generator

Power profile: 14,500 peak watts (gasoline), 13,500 peak watts (propane), 12,000 peak watts (natural gas). Running watts scale similarly and offer long runtimes on large fuel tanks. Best for buyers who need top-end peak performance to support high-load appliances during outages.
Best for: Large homes or properties with high simultaneous loads, where starting multiple appliances is common. The heavy-duty 550cc engine and cast iron sleeve emphasize durability for extended outages.
Why selected: This model provides the highest peak wattage in the tri-fuel class among the listed options, ensuring capability to power air conditioners, well pumps, and other critical systems at once. A long runtime on a full tank adds reliability for multi-day outages.
Limitation: Fuel economy can vary with load; plan for adequate fuel storage and automatic transfer switch compatibility for seamless operation during outages.
Westinghouse 13500 Peak Watt Dual Fuel Generator

Power profile: 13,500 peak watts (gasoline), 12,500 peak watts (propane). Long runtimes up to 19 hours on a 9.5-gallon tank. Dual-fuel flexibility supports varied fuel availability and cost considerations.
Best for: Mid-to-large homes with variable fuel access. The included features like a remote start and multiple outlets make it convenient for homes with diverse electronics and devices.
Why selected: The dual-fuel capability combines convenience with strong performance and a flexible power solution for outages or remote work scenarios.
Limitation: It requires proper transfer switch configuration to maximize safe operation with a full home load, and owners should monitor oil levels with automatic shutdown features in place for protection.
Westinghouse 8200 Peak Watt Tri-Fuel Inverter Generator

Power profile: Gasoline 8200 peak / 6600 running, propane 7380 peak / 5940 running, natural gas 6560 peak / 5280 running. Inverter technology provides clean power suitable for electronics and sensitive devices.
Best for: Home users who need quieter operation and cleaner power for electronics, plus basic home backup capability with a 50A transfer-capable outlet.
Why selected: Combines inverter efficiency with tri-fuel flexibility and a compact footprint, making it a practical choice for smaller outages or campsites that require stable power for electronics.
Limitation: Inverter models may have lower peak output than traditional open-frame units; size of loads should be planned accordingly to avoid overloading the system.
Westinghouse 18000 Peak Watt Tri-Fuel Generator

Power profile: Gas 18,000 peak / 14,500 running, propane 16,000 peak / 13,000 running, natural gas 14,400 peak / 11,600 running. CO sensor adds safety for indoor or semi-enclosed use with proper ventilation.
Best for: Very large homes or job sites requiring substantial power for cooling, pumps, and appliances simultaneously during outages.
Why selected: The CO sensor and high peak wattage deliver robust capabilities for demanding outages while maintaining safety features typical of higher-end units.
Limitation: Larger footprint and higher fuel consumption under heavy loads; ensure storage and ventilation guidelines are followed for safe operation.
DuroMax XP13000HXT Tri Fuel Generator

Power profile: 13,000 watts continuous, with tri-fuel operation for gasoline, propane, and natural gas. Includes CO alert for safety and a robust 500cc engine for reliable performance.
Best for: Budget-conscious buyers who want substantial tri-fuel capability and a CO alert feature for added protection.
Why selected: Combines strong delivering power with essential safety features and a flexible fuel choice, suitable for mid-to-large outages or remote work sites where fuel access varies.
Limitation: CO alert helps safety, but proper ventilation remains essential; as with all portable generators, heavy use requires careful handling and maintenance.
Buying Guide
What to consider when choosing a tri-fuel heat pump backup generator
Power needs: Estimate your essential loads and peak requirements. Larger homes need higher peak watts; smaller spaces can rely on mid-range outputs. Consider motorized appliances and AC units to calculate required watts.
Fuel flexibility: Tri-fuel capability adds resilience during fuel shortages. Check availability, cost, and access for gasoline, propane, and natural gas in your area.
Run time and fuel capacity: Look for larger tanks or engine efficiency features. Longer runtimes during outages reduce refueling interruptions and stress on your power system.
Safety features: CO sensors, automatic low-oil shutdown, and proper ventilation are critical for safe operation in semi-enclosed spaces. Ensure compliance with local codes and installation standards.
Transfer switch compatibility: A transfer switch or interlock kit is essential for safe, code-compliant connection to your home electrical system. Verify outlets, amperage, and RV-ready options as needed.
Noise and emissions: Inverter-based units generally run quieter and produce cleaner power, which is better for electronics and neighborhoods with noise restrictions. However, most high-watt tri-fuel generators are louder than small portable models.
Portability vs. stationary needs: If you require a unit to move between sites, prioritize weight, wheel kits, and ease of transport. For permanent setups, installation considerations and cabinet options may matter more.
FAQ
- What does tri-fuel mean? It means the generator can run on gasoline, propane, or natural gas, giving you flexible fuel options during outages.
- Are tri-fuel generators safe for indoor use? They include safety features like CO sensors, but they must be used with proper ventilation and installed according to local codes.
- Is inverter technology better for home backup? Inverter models offer cleaner power and quieter operation, which is beneficial for electronics, but may have lower peak outputs than traditional open-frame units.
- Do these units require a transfer switch? Yes, for safe connection to a home’s electrical system. A transfer switch or interlock kit is recommended for reliable and code-compliant use.
- How do I choose the right wattage? Start with essential circuits: fridge, air conditioner, sump pump, lighting, and communications. Add future needs to avoid under-sizing the unit.
- What maintenance is typical for tri-fuel generators? Regular oil changes, fuel stabilization, and periodic testing are advisable. Follow the manufacturer’s maintenance schedule for best results.