Best Dual Fuel Whole House Generators for Reliable Home Power
The best dual fuel whole house generators provide flexible fuel options, strong continual power, and safe operation during outages. This guide highlights five top options that balance power, durability, and practical features for different homes. Ideal buyers include homeowners seeking scalable backup power, rural properties requiring longer run times, and those who want easy transfer-switch readiness. Below is a concise comparison and a buying guide to help you choose.
| Product | Fuel Options | Best For | Runtime Note |
|---|---|---|---|
| Westinghouse 12500 Watt Dual Fuel Portable | Gas or Propane | Mid-size homes with portable backup needs | Up to 12 hours on 6.6 gal |
| DuroMax XP13000EH | Gas or Propane | Homes needing substantial power quickly | High peak power for storms |
| DuroStar DS13000MX | Gas or Propane | Budget-conscious, larger backup | CO alert for safety |
| Westinghouse 13500 Peak Watt Dual Fuel | Gas or Propane | Longer outages with more peak capacity | Up to 19 hours on large tank |
| Westinghouse Outdoor 14500 Peak Watt | Gas or Propane | Largest portable option for big homes | Runs long on 9.5 gal tank |
Westinghouse 12500 Watt Dual Fuel Portable Generator
Key power outputs include 9500 running watts and 12500 peak watts on gasoline, and 8500 running watts with 11200 peak watts on propane. It features remote electric start, a digital hour meter, and a VFT display for real-time voltage, frequency, and hours. The unit is transfer switch ready and offers multiple outlets (two standard 120V and one 30A/50A RV-ready configuration) with rubber outlet covers for safety. Best for: homeowners needing robust portable backup with quick-start capability; suitable for mid-size homes during outages. Caution: portability may require careful placement and a proper transfer switch for full house coverage, and fuel storage guidelines must be followed.
DuroMax XP13000EH Dual Fuel Portable Generator
This 13,000-watt dual-fuel generator provides strong whole-home power with gasoline or propane. DuroMax is highlighted for dual-fuel technology and scalable power for emergencies. Best for: larger homes or work sites that require high output and the flexibility of fuel choice. Caution: data notes emphasize general capability; confirm transfer-switch compatibility and local power needs before use.
DuroStar DS13000MX 13,000-Watt Dual Fuel
With 13,000 watts of reliable power and dual-fuel capability, this model targets whole-home backup with the option of gasoline for maximum power or propane for longer run times and easier storage. It includes a CO alert feature for added safety. Best for: households prioritizing high-output backup and safety features. Limitation: CO alert adds safety, but maintenance access and neighborhood noise should be considered in installation planning.
Westinghouse 13500 Peak Watt Dual Fuel
This model delivers 10500 running watts on gasoline and 12500 peak watts on propane, with a 9.5-gallon fuel tank and 19-hour runtime. It includes dual GFCI outlets, transfer-switch readiness, and a CO shutdown along with a digital hour meter. Best for: users who need higher peak capability and longer operation on a single tank. Caution: ensure proper exhaust clearance and adherence to local regulations for portable generators used as home backups.
Westinghouse Outdoor 14500 Peak Watt Dual Fuel
Designed for larger homes, this unit offers up to 14,500 peak watts (gasoline) and 13,500 peak watts/11,500 running watts (propane). It runs up to 19 hours on a 9.5-gallon tank with a built-in fuel gauge. Best for: bigger homes needing robust backup power and longer run times. Limitation: higher initial footprint means more space and ventilation considerations for safe outdoor operation.
DuroMax XP13000HX 13,000-Watt Dual Fuel
This model combines 13,000 watts of power with dual-fuel flexibility and CO Alert for safety. It uses a 500cc OHV engine and copper windings to emphasize durability. Best for: families needing heavy-duty power with enhanced safety features. Choose this if you want proven dual-fuel performance and CO detection; avoid if you require ultra-quiet operation in a close-neighborhood setting.
Buying Guide: How to Choose a Dual Fuel Whole House Generator
- Power needs: Calculate your essential loads (HVAC, refrigerator, sump pump) and total surge watts. Look for units with enough running watts to cover critical circuits plus a buffer for startup surges.
- Fuel flexibility: Dual fuel offers propane and gasoline, which is advantageous during supply disruptions. Consider fuel availability and storage safety in your area.
- Transfer-switch readiness: If you plan to connect to your home’s electrical system, ensure the generator is transfer switch ready or compatible with your automatic transfer switch (ATS).
- Runtime and fuel tank size: Larger tanks extend runtime but require space and proper outdoor placement. Match tank size to typical outage durations in your region.
- Safety features: CO shutdown, low-oil shutdown, RV-ready outlets, and rubber outlet covers reduce risk during operation and maintenance.
- Noise and location: Inverter-based models tend to be quieter. Consider placement away from living areas with adequate ventilation and weather protection.
- Maintenance and durability: Look for robust engines (OHV, cast-iron sleeves) and components designed for long-term reliability, especially if you experience frequent outages.
FAQ
- What is the difference between running watts and peak watts? Running watts refer to continuous power, while peak watts indicate the maximum surge at startup for appliances.
- Can I run my whole house on a portable dual fuel generator? Portable units can power essential circuits if paired with a transfer switch; full-home coverage requires higher capacity and proper installation.
- Is propane a good long-term fuel option? Propane stores well and has a long shelf life, but availability and pressure considerations affect runtime.
- Do all dual fuel generators require installation? Transfer switches require professional installation; portable units use manual or automatic transfer options depending on setup.
- What maintenance is needed for reliability? Regular oil changes, spark plug checks, air filter maintenance, and battery checks for electric starts are recommended.
- Which generator is best for a small home? For smaller homes, look for models with 9,000-10,000 running watts and proven transfer switch compatibility to cover essential circuits without overprovisioning.