5 Best Generators for Whole House Backup Power
The best generators for whole house backup depends on your needs. The WEN TF1450X is best for maximum fuel flexibility with tri-fuel capability, while the DuroMax XP13000HX excels at safety-conscious operation with CO Alert technology. For budget-minded buyers, the DuroStar DS13000MX stands out with its affordable price and remote electric start feature.
Choosing the right whole house generator means considering power output, fuel options, and safety features. All five generators reviewed here offer transfer switch compatibility and enough wattage to keep essential appliances running during outages.
Quick Comparison Table
| Product | Peak Watts | Fuel Options | Engine Size | CO Detection | Electric Start |
|---|---|---|---|---|---|
| DuroMax XP13000EH | 13,000W | Gas & Propane | 500cc | No | Yes |
| DuroMax XP13000HX | 13,000W | Gas & Propane | 500cc | Yes (CO Alert) | Yes |
| WEN TF1450X | 14,500W | Gas, Propane & Natural Gas | 500cc | Yes (Watchdog) | Yes |
| Generac GP9500 | 12,500W | Gas, Propane & Natural Gas | N/A | Yes (COsense) | Yes |
| DuroStar DS13000MX | 13,000W | Gas & Propane | 500cc | Yes (CO Alert) | Yes (Remote) |
Best Generators for Whole House
1. WEN TF1450X – Best Tri-Fuel Generator with Maximum Flexibility
Best for: Homeowners who want the ultimate fuel flexibility with gas, propane, and natural gas options.
Key Features:
| Feature | Details |
| Peak Power | 14,500 watts on gas |
| Fuel Options | Gas, propane, natural gas |
| Safety | Watchdog CO shutdown sensor |
| Runtime | 12 hours at half-load |
| Tank Capacity | 8.2 gallons |
The WEN TF1450X is the best tri-fuel generator for homeowners seeking maximum fuel versatility during power outages. With 14,500 surge watts on gasoline, it delivers the highest power output in this roundup.
The all-metal construction and 500cc OHV engine provide reliable performance across all three fuel types. The simple fuel selection dial makes switching between gas, propane, and natural gas effortless.
Safety is paramount with the WEN Watchdog CO Shutdown Sensor that automatically turns off the generator if dangerous carbon monoxide levels are detected. The electric start eliminates manual pulling for convenient operation.
The fully loaded power panel includes four 120V household outlets plus transfer-switch-ready outlets for whole home backup. The 8.2-gallon tank provides up to 12 hours of runtime at half-load on gasoline.
This generator excels for homeowners who want natural gas hookup capability alongside portable fuel options, making it the most versatile choice available.
Pros:
- Tri-fuel capability for maximum flexibility
- Highest power output at 14,500 watts
- CO Watchdog automatic shutdown
- 12-hour runtime at half-load
Cons:
- Lower output on natural gas
- Requires NG hookup installation
2. DuroMax XP13000HX – Best Generator with Advanced CO Safety
Best for: Families prioritizing carbon monoxide safety with automatic shutdown protection.
Key Features:
| Feature | Details |
| Peak Power | 13,000 watts dual fuel |
| Safety | CO Alert automatic shutdown |
| Windings | All copper construction |
| Power Panel | Six outlet configurations |
| Frame | Heavy-duty all metal |
The DuroMax XP13000HX is the best dual-fuel generator for homeowners who prioritize safety without compromising power. The integrated CO Alert technology automatically shuts down the unit if harmful carbon monoxide levels are detected.
Built with a powerful 500cc OHV DuroMax engine featuring all copper windings, this generator is designed for longevity and reliable performance. The heavy-duty all-metal construction eliminates plastic components that can fail over time.
The front-facing control panel allows you to switch between gasoline and propane in seconds with push-button electric start. The fully loaded power panel includes four GFCI household outlets, multiple twist-lock outlets, and a 50-amp transfer switch-ready connection.
Dual fuel capability gives you flexibility to run on propane for cleaner emissions and longer shelf life or gasoline for maximum power output. The intuitive interface makes operation straightforward even during stressful outage situations.
This generator is ideal for safety-conscious families who want robust whole home backup power with advanced CO detection technology.
Pros:
- CO Alert automatic shutdown safety
- All copper windings for durability
- Heavy-duty all-metal construction
- Six outlet configurations
Cons:
- Higher price point
- No natural gas option
3. DuroStar DS13000MX – Best Budget Whole House Generator
Best for: Budget-conscious homeowners needing reliable whole house backup with remote start.
Key Features:
| Feature | Details |
| Peak Power | 13,000 watts dual fuel |
| Start System | Remote electric start |
| Safety | CO Alert technology |
| Control Panel | Front-facing fuel selector |
| Transfer Switch | 50-amp outlet ready |
The DuroStar DS13000MX is the best budget generator offering 13,000 watts of reliable power at an unbeatable price point. Despite the lower cost, it doesn’t skimp on essential features like CO Alert safety technology.
The heavy-duty build quality and 500cc engine deliver dependable performance during storms and outages. Remote electric start capability adds convenience, allowing you to fire up the generator without leaving your home.
Dual fuel technology lets you choose between gasoline for maximum power or propane for longer run times and cleaner emissions. The intuitive front-facing control panel makes fuel switching and operation simple.
The 50-amp heavy-duty outlet connects directly to a transfer switch for whole home power distribution. CO Alert technology provides peace of mind by automatically shutting down if dangerous carbon monoxide levels are detected.
This generator delivers exceptional value for homeowners who want professional-grade features without the premium price tag.
Pros:
- Most affordable option
- Remote electric start included
- CO Alert safety feature
- 13,000 watts of power
Cons:
- Fewer outlet configurations
- Basic power panel design
4. Generac GP9500 – Best Brand Name Tri-Fuel Generator
Best for: Homeowners who want the reliability and support of the Generac brand name.
Key Features:
| Feature | Details |
| Peak Power | 12,500 watts tri-fuel |
| Safety | COsense Technology |
| Outlets | Covered for protection |
| Wheels | Never-flat heavy-duty |
| Frame | Steel-tube cradle |
The Generac GP9500 is the best brand-name generator offering tri-fuel capability with the backing of America’s most trusted generator manufacturer. With 12,500 starting watts, it provides ample power for whole home backup.
The rugged steel-tube cradle and covered outlets provide superior protection in harsh environments and outdoor conditions. Never-flat heavy-duty wheels make transportation easy even across rough terrain.
COsense Technology automatically monitors carbon monoxide levels and shuts down the generator if dangerous concentrations are detected. The fuel source selector allows seamless switching between gas, propane, and natural gas without unit shutdown.
Electric start with included battery eliminates manual cranking for hassle-free operation during emergencies. The long-lasting OHV engine and large-capacity fuel tank deliver up to 9.5 hours of runtime at 50% load.
This generator is perfect for homeowners who value brand reputation and want tri-fuel versatility with premium build quality.
Pros:
- Trusted Generac brand name
- Tri-fuel capability
- COsense safety technology
- Never-flat wheels
Cons:
- Lower wattage than competitors
- Higher price for features
5. DuroMax XP13000EH – Best Heavy-Duty Construction Generator
Best for: Users demanding maximum durability with all-metal construction and no plastic parts.
Key Features:
| Feature | Details |
| Peak Power | 13,000 watts dual fuel |
| Construction | All-metal frame and panel |
| Engine | Robust 500cc DuroMax |
| Control | Front-facing fuel selector |
| Outlets | Wide variety including 50-amp |
The DuroMax XP13000EH is the best heavy-duty generator featuring all-metal construction with absolutely no plastic components. This industrial-grade build quality ensures years of reliable performance in demanding conditions.
The robust 500cc DuroMax engine at the core delivers consistent power designed to last through countless power outages. Dual fuel capability provides flexibility to run on gasoline or propane depending on availability and preference.
Push-button electric start makes operation effortless, while the front-facing interface allows quick fuel type changes in seconds. The heavy-duty all-metal power panel resists damage and weathering better than plastic alternatives.
Transfer switch-ready 50-amp outlet connects directly to your home’s electrical system for whole house backup power. The wide variety of outlet configurations accommodates multiple devices and appliances simultaneously.
This generator excels for users who prioritize maximum durability and refuse to compromise on construction quality.
Pros:
- All-metal construction no plastic
- Robust 500cc engine
- Push-button electric start
- Multiple outlet options
Cons:
- No CO detection system
- Only dual fuel not tri-fuel
How to Choose the Best Generator for Whole House
Power Output Requirements
Calculate your home’s essential power needs before buying a generator. Add up the wattage of critical appliances like your refrigerator, furnace, well pump, and lights.
Most whole house generators need 10,000 to 15,000 watts to power essential systems comfortably. Choose a generator with at least 20% more capacity than your calculated needs to avoid overloading.
Fuel Type Flexibility
Dual fuel generators run on gasoline and propane, while tri-fuel models add natural gas capability. Propane stores indefinitely without degrading, making it ideal for emergency preparedness.
Natural gas hookup eliminates fuel storage concerns but requires professional installation. Consider which fuel sources are readily available in your area during emergencies.
Safety Features
Carbon monoxide detection is essential for any generator used near living spaces. Look for automatic shutdown systems that turn off the unit if dangerous CO levels are detected.
GFCI-protected outlets prevent electrical shocks in wet conditions. Transfer switch compatibility ensures safe connection to your home’s electrical system without backfeeding power to utility lines.
Runtime and Fuel Efficiency
Larger fuel tanks provide longer runtime between refills during extended outages. Check the manufacturer’s runtime specifications at 50% load for realistic expectations.
Propane typically offers longer runtime than gasoline due to cleaner combustion and fuel stability. Consider having multiple fuel sources available for maximum flexibility during prolonged power outages.
Build Quality and Durability
All-metal construction resists weather damage better than plastic components. Heavy-duty frames protect internal components during transport and storage.
Copper windings last longer than aluminum alternatives in generator motors. Look for robust engines from reputable manufacturers with proven track records in portable power equipment.
Frequently Asked Questions
What size generator do I need to power my whole house?
Most homes need 10,000 to 15,000 watts to power essential appliances including refrigerators, furnaces, well pumps, and lights. Calculate your specific needs by adding up wattage requirements of critical devices.
Can I connect a portable generator directly to my home’s electrical panel?
You must use a transfer switch installed by a licensed electrician to safely connect a generator to your home’s electrical system. Direct connection without a transfer switch is dangerous and illegal in most areas.
How long can a whole house generator run continuously?
Most portable generators can run 8 to 12 hours on a full tank at 50% load. Allow the engine to cool down every 12 to 24 hours and check oil levels regularly during extended operation.
Is propane or gasoline better for whole house generators?
Propane stores indefinitely without degrading and burns cleaner, while gasoline provides slightly higher power output. Dual fuel generators offer the best flexibility by allowing you to use whichever fuel is available.
Do I need CO detection on my whole house generator?
Yes, carbon monoxide detection with automatic shutdown is a critical safety feature that can save lives. Never operate a generator without proper ventilation and CO monitoring systems in place.
Final Thoughts
The WEN TF1450X offers the best overall value with tri-fuel capability and highest power output at 14,500 watts. For budget-conscious buyers, the DuroStar DS13000MX delivers excellent features at an unbeatable price point.
Consider your fuel availability, power requirements, and safety priorities when choosing a generator. All five models reviewed here provide transfer switch compatibility and sufficient power for whole home backup during outages.
Invest in a quality generator now to ensure your family stays comfortable and safe during the next power outage.