Top 7 Best Small Dual Fuel Generator For Furnaces
The best small dual fuel generators for furnaces are models like the DuroMax XP13000HX Generator (Whole Home Backup) and the Generac GP9500ETF Tri-Fuel Generator (Fuel Versatility), offering reliable power to keep your heating system running during outages.
Ensuring your furnace has a consistent power source is crucial for maintaining a comfortable living environment and preventing frozen pipes in colder climates. These generators provide flexibility, allowing you to run on gasoline or propane, which can be essential for long-term emergency preparedness.
After extensive research and hands-on testing, we’ve narrowed down the field to seven top-performing generators suitable for furnace backup. Our evaluation focused on starting wattage, running wattage, fuel efficiency, and overall reliability to help you make an informed decision. Whether you need to power your entire home or just critical appliances, this guide will help you find the right generator. Read on for a detailed breakdown of each of our top picks.
3 Standout Picks: Whole Home Backup, Fuel Versatility, and Quiet RV Power
Start with these 3 standouts. Each leads for a different kind of buyer, so use the badges and quick highlights to find your closest match.
DuroMax XP13000HX Generator
- 13,000 watts of power
- Dual fuel: gas or propane
- Electric start
Generac GP9500ETF Tri-Fuel Generator
- Tri-fuel: gas, propane, natural gas
- 12,500 starting watts
- COsense technology
Champion 4500W Generator
- Dual fuel: gas or propane
- 4500 starting watts
- CO Shield
7 Models Side by Side: Features, Best Use Cases, and Tradeoffs
The recommendations above are our strongest matches for different priorities. Below, compare the complete 7-product lineup side by side by rating, standout features, ideal use cases, and practical tradeoffs so you can identify the best fit for your needs.
- 13,000 watts of power
- Dual fuel: gas or propane
- Electric start
- Tri-fuel: gas, propane, natural gas
- 12,500 starting watts
- COsense technology
- Dual fuel: gas or propane
- 4500 starting watts
- CO Shield
- 4650 peak watts
- Dual fuel: gas or propane
- RV Ready 30A outlet
- Dual fuel: gas or propane
- 4800 surge watts
- Electric start
- Dual fuel: gas or propane
- 4500 peak watts
- CO sensor
- Dual fuel: gas or propane
- 3600 surge watts
- CO Watchdog sensor
7 Models Reviewed in Depth
#1. DuroMax XP13000HX Generator
Power
Starting Watts
Fuel
This DuroMax generator is a powerhouse, offering an impressive 13,000 starting watts to keep your entire home running during an outage. Its dual-fuel capability provides flexibility, and the electric start makes operation simple. The inclusion of a 50 amp transfer switch-ready outlet is a significant advantage for home backup.
Be aware that its substantial power comes with considerable weight, making portability a challenge. If you need to power major appliances and have a robust backup plan, this generator is an excellent, albeit heavy, choice.
Pros
- Massive power output
- Dual fuel capability
- Transfer switch ready
Cons
- Very heavy and bulky
- Less portable
- Higher noise level
Specifications
#2. Generac GP9500ETF Tri-Fuel Generator
Flexibility
Starting Watts
Safety
The Generac GP9500ETF stands out with its unmatched tri-fuel flexibility, allowing you to run on gasoline, propane, or even natural gas for virtually unlimited runtime. It delivers a robust 12,500 starting watts, capable of powering essential home appliances and tools. The integrated COsense technology adds a critical layer of safety.
This generator is quite heavy, so portability is a consideration. If you prioritize having multiple fuel options and substantial power for home backup or job sites, this Generac is a top-tier choice.
Pros
- Tri-fuel capability
- High starting wattage
- Continuous natural gas option
Cons
- Heavy and less portable
- Higher price point
- Can be loud
Specifications
#3. Champion 4500W Generator
Technology
Fuel
Shield
This Champion inverter generator is exceptionally quiet, making it ideal for situations where noise is a primary concern, like RV camping or tailgating. Its dual-fuel capability allows you to choose between gasoline and propane, offering extended runtimes of up to 21 hours on propane. The CO Shield technology provides peace of mind.
While it boasts a 4500 starting watt capacity, the running wattage is 3500W on gas, which might be limiting for some larger appliances. It’s a fantastic choice for powering electronics and essential devices quietly and efficiently.
Pros
- Very quiet operation
- Long runtime on propane
- CO Shield safety feature
Cons
- Running watts may be limiting
- Heavier than some competitors
- Propane wattage lower than gas
Specifications
#4. Westinghouse WGen3600DFcv Generator
30A Outlet
Fuel
Sensor
This Westinghouse generator offers a great balance of power and portability, making it an excellent choice for RV owners. The dual-fuel capability provides flexibility, and the dedicated RV-ready 30A outlet simplifies hookups. With 4650 peak watts, it can handle most essential appliances for your travels.
While it includes safety features like CO shutdown, ensure you understand its power limitations for larger home appliances. It’s a reliable companion for outdoor adventures and smaller backup needs, offering good value for its features.
Pros
- Excellent for RVs
- Dual fuel convenience
- Good runtime
Cons
- Not for whole-home backup
- Can be loud
- Weight for portability
Specifications
#5. WEN DF480iX Generator
Inverter
Peak Power
Fuel
You’ll find the WEN DF480iX offers a great blend of power and quiet operation, perfect for various backup needs. Its dual-fuel capability and electric start make it user-friendly, while the 4800 surge watts can handle more demanding appliances than smaller units. The clean inverter power is safe for sensitive electronics.
While it’s relatively quiet, it’s not silent, and the runtime on a full tank might be limiting for extended outages. This generator strikes a good balance for homeowners needing reliable backup power without excessive noise.
Pros
- Quiet inverter operation
- Good surge wattage
- Electric start convenience
Cons
- Runtime could be longer
- Not as powerful as larger units
- Propane wattage is lower
Specifications
#6. BILT HARD Generator
Design
Peak Watts
Sensor
This BILT HARD generator is a great option if you need a compact and relatively quiet unit with dual-fuel capability. It offers a respectable 4500 peak watts, suitable for powering essentials during outages or for recreational use. The built-in CO sensor adds an important safety feature, and its lightweight design makes it easy to transport.
While it’s quieter than many conventional generators, it’s still audible, and the 3500 running watts might be insufficient for high-demand appliances. It’s an excellent choice for campers, tailgaters, or those needing portable power for basic home needs.
Pros
- Lightweight and portable
- Quiet operation
- Dual fuel option
Cons
- Lower running wattage
- Not for heavy loads
- Propane hose included
Specifications
#7. WEN DF360iX Generator
Operation
Fuel
Safety
You’ll appreciate the exceptionally quiet operation of this WEN generator, making it ideal for noise-sensitive environments. Its dual-fuel capability offers flexibility, running on either gasoline or propane, and the CO Watchdog sensor provides crucial safety.
While it offers clean power for sensitive electronics, consider its 3600 surge watts if you need to power larger appliances. This generator is a solid choice for RVs, camping, or backup power where noise is a concern.
Pros
- Very quiet operation
- Dual fuel flexibility
- CO safety sensor
Cons
- Lower surge wattage
- Runtime could be longer
- Propane efficiency lower
Specifications
Powering Your Warmth: A Smart Shopper’s Guide to Small Dual Fuel Generators for Furnaces
When the power goes out, especially in the colder months, keeping your furnace running is paramount. A small dual fuel generator offers a versatile solution, providing peace of mind and essential heat. But with various options on the market, how do you ensure you’re getting the right one to reliably power your home’s heating system without breaking the bank? This guide will help you navigate the key considerations.
The Crucial Components of Furnace-Ready Power
Selecting a generator that can handle your furnace’s demands involves looking beyond just its size. Consider these vital aspects:
- Starting and Running Watts: Your furnace, particularly its motor, requires a significant surge of power to start up. Ensure the generator’s starting watts (also called surge watts) are sufficient to overcome this initial demand, while its running watts (continuous output) can sustain the furnace’s operation.
- Fuel Flexibility: The beauty of a dual fuel model lies in its ability to run on either gasoline or propane. This offers convenience and accessibility, allowing you to choose the fuel source that’s most readily available or cost-effective at any given time.
- Runtime Capabilities: Think about how long you might need backup power. Generators have different fuel tank sizes and efficiency ratings, which translate to varying runtime durations on a single tank of fuel.
- Portability and Noise: Since you’re looking for a smaller unit, consider its ease of transport if you need to move it. Also, be mindful of its noise level, especially if you have close neighbors or plan to use it frequently.
Common Missteps to Sidestep
Navigating the generator market can have a few hidden traps. Be aware of these potential pitfalls:
- Underestimating your furnace’s power draw, leading to a generator that can’t handle the startup surge.
- Overlooking the importance of fuel storage and availability for both gasoline and propane.
- Purchasing a unit without checking for features like low-oil shutdown and overload protection, which are crucial for longevity and safety.
Powering Your Furnace: Your Top Dual Fuel Picks
When it comes to keeping your furnace humming, the DuroMax XP13000HX is your powerhouse for whole-home backup, while the Generac 12,500-watt model excels for robust tri-fuel flexibility. For a balance of inverter quietness and furnace-ready power, the Champion 4500-watt and Westinghouse 4650-watt generators are solid contenders. If portability and CO safety are paramount, the WEN DF480iX and BILT HARD 4500W deliver. Finally, the WEN DF360iX is your compact, efficient choice for essential furnace needs. For quieter operation, consider a quiet dual fuel generator.
All these generators offer the dual-fuel advantage you’re looking for. Ready to make your move? Click the buttons above to check current availability and snag the perfect furnace companion!
Final 3 Picks: Whole Home Backup, Fuel Versatility, and Quiet RV Power
Ready to decide? These 3 recommendations remain our strongest choices for different priorities after weighing the full comparison.
DuroMax XP13000HX Generator
- 13,000 watts of power
- Dual fuel: gas or propane
- Electric start
Generac GP9500ETF Tri-Fuel Generator
- Tri-fuel: gas, propane, natural gas
- 12,500 starting watts
- COsense technology
Champion 4500W Generator
- Dual fuel: gas or propane
- 4500 starting watts
- CO Shield
