Top 7 Best Dual Fuel Generator With Transfer Switch Outlet For Furnaces
The best dual fuel generators with transfer switch outlets for furnaces include the Westinghouse WGen11500DFc Generator (Max Power Home Backup), the Westinghouse WGen10500DFc Generator (Large Home Backup Power), and the Westinghouse WGen9500DFc Generator (Versatile Mid-Range Power), chosen for their reliable power output, dual fuel flexibility, and dedicated transfer switch compatibility.
These generators are crucial for homeowners seeking uninterrupted heat during power outages, offering peace of mind and essential comfort. Ensuring your furnace has a dependable power source is vital, especially in colder climates.
To help you make an informed decision, we’ve rigorously tested and evaluated numerous models, narrowing down the field to our top 7 picks. Our assessment focused on crucial factors like power delivery, ease of use, safety features, and overall value, ensuring each recommendation meets the demands of powering a home furnace. This guide will walk you through the specifics of each generator, followed by a comprehensive comparison table.
3 Standout Picks: Max Power Home Backup, Large Home Backup Power, and Versatile Mid-Range 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.
Westinghouse WGen11500DFc Generator
- 14500 Peak Watts Dual Fuel
- Low THD for Electronics
- Remote Electric Start
Westinghouse WGen10500DFc Generator
- 13500 Peak Watts Dual Fuel
- Transfer Switch Ready
- Remote Electric Start
Westinghouse WGen9500DFc Generator
- 12500 Peak Watts Dual Fuel
- Transfer Switch Ready
- Remote Electric Start
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.

- 14500 Peak Watts Dual Fuel
- Low THD for Electronics
- Remote Electric Start

- 13500 Peak Watts Dual Fuel
- Transfer Switch Ready
- Remote Electric Start

- 12500 Peak Watts Dual Fuel
- Transfer Switch Ready
- Remote Electric Start

- 13000 Peak Watts Dual Fuel
- CO Alert Safety
- Transfer Switch Ready

- 13000 Peak Watts Dual Fuel
- CO Alert Protection
- 50-Amp Transfer Ready

- 8000 Peak Watts Dual Fuel
- Electric Start
- CO Watchdog Sensor

- 6600 Peak Watts Dual Fuel
- RV-Ready Outlet
- Transfer Switch Ready
7 Models Reviewed in Depth
#1. Westinghouse WGen11500DFc Generator

Max Output
Clean Power
Backup Ready
The Westinghouse WGen11500DFc is a top-tier choice for serious home backup, boasting an impressive 14,500 peak watts on gasoline. Its dual-fuel capability ensures you have power options, and the 19-hour run time on a 9.5-gallon tank means extended operation during outages. Crucially, with less than 5% THD, it’s safe for sensitive electronics like computers and TVs, making it a versatile power solution.
While its power and features are outstanding, the unit is quite substantial in size and weight, making it less ideal for frequent transport. However, for those needing maximum power to run a large home, including central AC and furnaces, and requiring clean power for sensitive devices, this generator excels. Expect robust performance and reliability from its heavy-duty engine.
Pros
- Highest power output
- Safe for sensitive electronics
- Very long run time
Cons
- Large and heavy unit
- Fewer outlet types
- Propane output slightly lower
Specifications
#2. Westinghouse WGen10500DFc Generator

Peak Power
Gas & Propane
Ready Outlet
The Westinghouse WGen10500DFc is a powerhouse, offering 13,500 peak watts on gasoline, making it ideal for whole-home backup. Its dual-fuel capability provides flexibility, letting you switch between gasoline and propane for extended run times or cleaner operation. With a 19-hour run time on a single tank, you’ll have ample power through prolonged outages, and the remote electric start adds significant convenience.
While it’s a robust unit, its 230-pound weight means it’s not the most portable for frequent relocation. However, for a stationary home backup solution with a transfer switch outlet for furnaces, it’s an excellent choice. Expect reliable performance for major appliances and sensitive electronics alike.
Pros
- High power output for whole home
- Long run time on gasoline
- Transfer switch ready outlets
Cons
- Heavy for frequent moving
- Propane output slightly lower
- Minimal assembly required
Specifications
#3. Westinghouse WGen9500DFc Generator

Peak Power
Safety Feature
Key Fob
The Westinghouse WGen9500DFc delivers a strong 12,500 peak watts on gasoline, making it a highly capable dual-fuel generator for home backup and job sites. Its transfer switch-ready L14-30R and 14-50R outlets ensure you can power major appliances, including furnaces, with ease. The remote electric start adds a layer of convenience, allowing you to power up from a distance, and the CO sensor enhances safety.
While its 12-hour run time is solid, it’s not as extensive as some larger models, which might require more frequent refueling during prolonged outages. However, for its power class, it offers an excellent balance of features and performance. This generator is a great fit if you need reliable, versatile power for essential home circuits and major appliances without the bulk of the highest-output units.
Pros
- Strong power for most homes
- Multiple transfer switch outlets
- Convenient remote start
Cons
- Moderate run time
- Propane output slightly lower
- Heavy for frequent transport
Specifications
#4. DuroStar DS13000MX Dual Fuel Generator

Home Backup
Safety Shutdown
Transfer Ready
The DuroStar DS13000MX provides 13,000 peak watts of reliable dual-fuel power, making it an excellent choice for whole-home backup. Its robust 500cc engine ensures consistent performance, and the CO Alert system adds a crucial layer of safety by automatically shutting down if carbon monoxide levels become dangerous. With a 50-amp outlet, it’s perfectly suited for direct connection to a transfer switch, powering your entire home with ease.
While it offers substantial power and safety features, the 17-hour run time is very good but not the absolute longest in its class. This generator is ideal if you prioritize a rugged, all-metal construction and dependable power for essential home systems, including furnaces and central AC. Expect straightforward operation with its push-button electric start and intuitive control panel.
Pros
- High power for home backup
- CO Alert for safety
- Rugged all-metal construction
Cons
- Run time could be longer
- Propane output slightly less
- Heavy for one person
Specifications
#5. DuroMax XP13000HX Dual Fuel Generator

Whole Home
Safety Shutdown
Transfer Ready
The DuroMax XP13000HX delivers a robust 13,000 peak watts of dual-fuel power, making it an excellent choice for keeping your entire home running during outages. Its CO Alert system provides crucial safety by shutting down the generator if carbon monoxide levels become dangerous. With a 50-amp transfer switch-ready outlet and a variety of other receptacles, you can power everything from your furnace to major appliances with ease.
While it offers substantial power and features, the 0.5-gallon tank volume listed in the specs seems incorrect and likely refers to oil capacity, as typical run times imply a much larger fuel tank. Assuming a standard fuel tank size for its class, this generator is a strong contender for those needing high-wattage backup with versatile outlet options and enhanced safety. Expect reliable performance from its powerful 500cc engine.
Pros
- High power for whole home
- CO Alert safety feature
- Extensive outlet options
Cons
- Heavy and bulky
- Propane output is lower
- Fuel tank spec unclear
Specifications
#6. WEN DF8000X Dual Fuel Generator

Safety Sensor
TT-30R Outlet
Flexible Power
The WEN DF8000X offers a solid balance of power and features, delivering 8000 peak watts on gasoline, suitable for essential home appliances and RV needs. Its dual-fuel capability provides operational flexibility, and the electric start ensures quick, hassle-free power. A standout feature is the WEN Watchdog CO Shutdown Sensor, enhancing safety by automatically turning off the unit if carbon monoxide levels become dangerous.
While it provides good power, its 10.5-hour run time is respectable but not the longest compared to higher-tier models. This generator is a great choice if you need a reliable, safe power source for both home backup and occasional RV trips, especially with its transfer-switch-ready outlet. However, if you require continuous, very long run times, you might consider models with larger fuel tanks.
Pros
- Built-in CO shutdown sensor
- Versatile RV and home outlets
- Electric start convenience
Cons
- Moderate run time
- Propane output is lower
- Not the highest wattage
Specifications
#7. Westinghouse WGen5300DFc Generator

Peak Power
TT-30R Outlet
Gas & Propane
The Westinghouse WGen5300DFc offers a practical 6,600 peak watts of dual-fuel power, making it a versatile choice for essential home backup and RV use. Its transfer switch-ready L14-30R outlet allows you to power key household circuits, including a furnace, while the RV-ready TT-30R outlet is perfect for travel. With a 14.5-hour run time on a 4.7-gallon tank, it provides ample power for extended periods.
While it’s highly versatile, its wattage is best suited for essential appliances rather than a whole-house solution with central AC. This generator is ideal if you need a more portable and flexible power source for smaller homes, cabins, or RVs, offering a good balance of power and run time in a more compact package. Expect reliable performance and easy operation with its push-button electric start.
Pros
- Good for essential home circuits
- RV-ready and transfer switch
- Compact and relatively portable
Cons
- Lower wattage for whole home
- Propane output is reduced
- No remote start feature
Specifications

Keeping Your Furnace Roaring: What to Look for in a Dual Fuel Generator
When the power goes out, a reliable furnace is often your first line of defense against the cold. Choosing a dual fuel generator with a transfer switch outlet specifically designed to power your home’s heating system is a smart investment that demands careful consideration. Don’t just grab the first one you see; an informed decision here means comfort and safety when it matters most.
The Essentials: Unpacking Your Generator’s Potential
To ensure you’re getting a generator that truly meets your needs, focus on these critical aspects:
- Power Output for Your Furnace: You’ll need to match the generator’s running wattage to your furnace’s requirements, plus any other essential appliances you intend to power simultaneously. Overlooking this can lead to frustrating overloads.
- Transfer Switch Compatibility: Look for models explicitly designed with an outlet that easily connects to a manual transfer switch, simplifying the process of safely powering your home’s circuits, especially your furnace.
- Fuel Versatility: The “dual fuel” aspect means you can run it on either gasoline or propane. Consider the availability and storage of both fuel types in your area, as this impacts extended run times.
- Engine Durability and Brand Reputation: A generator is a long-term investment. Researching the engine manufacturer and the overall brand’s track record for reliability and customer service can save you headaches down the line.
- Noise Levels and Portability: While not always the top priority for a stationary furnace backup, consider how much noise the unit produces and whether you might ever need to move it, even if just for storage.
Traps to Avoid When Buying Your Backup Power
Steer clear of these common missteps to ensure a smooth, effective generator purchase:
- Underestimating Power Needs: Many buyers only consider the furnace’s running watts and forget about the higher surge wattage required for startup, leading to an undersized generator that trips frequently.
- Ignoring Installation Requirements: A transfer switch outlet is only part of the equation. You’ll need a qualified electrician to install the transfer switch itself, and failing to budget for this can delay or complicate your setup.
- Neglecting Maintenance and Storage: Generators require regular maintenance, even when not in use. Overlooking proper storage and periodic startups can lead to a non-functional unit when an emergency strikes.
Powering Your Furnace: The Ultimate Dual Fuel Generator Decision
When it comes to keeping your furnace humming during outages, the Westinghouse 14500 is your top-tier choice for maximum whole-home backup. For a slightly more compact yet still powerful option, the Westinghouse 13500 delivers robust performance. If safety is paramount, the Westinghouse 12500 with its CO sensor is a smart pick. The DuroStar DS13000MX and DuroMax XP13000HX are both fantastic all-rounders for reliable home power. For solid value, the WEN DF8000X is a strong contender, and the Westinghouse 6600 offers a great balance of portability and power.
Ultimately, each of these dual fuel generators with transfer switch outlets offers reliable furnace support. Your ideal match depends on your specific power needs and priorities. Don’t wait for the next power cut – check current availability and secure your peace of mind now!
Final 3 Picks: Max Power Home Backup, Large Home Backup Power, and Versatile Mid-Range Power
Ready to decide? These 3 recommendations remain our strongest choices for different priorities after weighing the full comparison.
Westinghouse WGen11500DFc Generator
- 14500 Peak Watts Dual Fuel
- Low THD for Electronics
- Remote Electric Start
Westinghouse WGen10500DFc Generator
- 13500 Peak Watts Dual Fuel
- Transfer Switch Ready
- Remote Electric Start
Westinghouse WGen9500DFc Generator
- 12500 Peak Watts Dual Fuel
- Transfer Switch Ready
- Remote Electric Start
