Top 7 Best Dual Fuel Generator With CO Shutoff For Furnaces
The best dual fuel generators with CO shutoff for furnaces include options like the Westinghouse WGen9500DFc Generator (Whole Home Power), the WEN DF8000X Generator (Home Backup Power), and the WEN DF452iX Generator (Quiet RV Power), chosen for their reliable performance, safety features, and versatile fuel options.
These generators provide peace of mind by ensuring your essential home appliances, including your furnace, remain operational during power outages, all while prioritizing user safety with integrated carbon monoxide detection. Having a dependable generator means avoiding the discomfort and potential damage caused by a cold house during a storm.
Our team has meticulously researched and tested numerous models, narrowing the field to seven top-performing dual fuel generators. We evaluated each on criteria such as power output, fuel efficiency, noise levels, and the effectiveness of their CO shutoff technology. Read on for our detailed comparison to help you find the perfect generator for your home backup needs.
3 Standout Picks: Whole Home Power, Home Backup Power, 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.
Westinghouse WGen9500DFc Generator
- 12500 peak watts
- Dual fuel, remote start
- CO sensor included
WEN DF8000X Generator
- 8000 surge watts
- Dual fuel, electric start
- CO Watchdog sensor
WEN DF452iX Generator
- 4500 watts dual fuel
- Remote electric start
- Very quiet operation
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.

- 12500 peak watts
- Dual fuel, remote start
- CO sensor included

- 8000 surge watts
- Dual fuel, electric start
- CO Watchdog sensor

- 4500 watts dual fuel
- Remote electric start
- Very quiet operation

- 6800 surge watts
- Dual fuel, electric start
- CO Watchdog sensor

- 4800 surge watts
- Dual fuel, electric start
- CO Watchdog sensor

- Dual fuel (gas/propane)
- CO Watchdog sensor
- RV ready

- 4500 peak watts
- Dual fuel, CO sensor
- Quiet inverter power
7 Models Reviewed in Depth
#1. Westinghouse WGen9500DFc Generator

Home Power
Electric Start
Sensor Safety
The Westinghouse WGen9500DFc is a powerhouse, offering substantial 9500 running watts on gasoline, capable of keeping your entire home powered during an outage. You’ll appreciate the convenience of remote electric start and the flexibility of dual-fuel operation, running on either gas or propane.
With its integrated CO sensor and transfer-switch-ready outlets, this generator prioritizes safety and ease of integration into your home’s electrical system. While its weight makes it less portable, it’s an excellent choice for homeowners seeking robust backup power without compromise.
Pros
- Massive power output
- Remote start convenience
- Dual fuel capability
Cons
- Very heavy
- Less portable
- Higher price point
Specifications
#2. WEN DF8000X Generator

Backup Power
Watchdog Sensor
Start
The WEN DF8000X is a robust generator designed for significant home backup needs, offering a substantial 6500 running watts on gasoline. You’ll appreciate the ease of electric start and the flexibility of dual-fuel operation, allowing you to use either gasoline or propane.
Its integrated CO Watchdog sensor adds a critical layer of safety, automatically shutting down the unit if dangerous carbon monoxide levels are detected. While it’s not the most portable option, its power output and safety features make it a reliable choice for keeping essential home systems running during outages. It’s ideal for homeowners needing dependable backup power.
Pros
- High running wattage
- Electric start for convenience
- Dual fuel capability
Cons
- Heavy and less portable
- Propane running watts are lower
- No remote start
Specifications
#3. WEN DF452iX Generator

Quiet
Start
Watchdog
The WEN DF452iX stands out for its exceptionally quiet operation, making it perfect for campgrounds and situations where noise is a concern. You’ll love the convenience of the remote electric start, allowing you to power up from a distance, and the flexibility of its dual-fuel system.
With the integrated CO Watchdog sensor, safety is a top priority. While its 3500 running watts are sufficient for most RV needs and essential home circuits, it may not be enough for heavy-duty appliances. This generator is an excellent choice for those prioritizing quietness and remote operation for medium power demands.
Pros
- Extremely quiet operation (58 dBA)
- Convenient remote start
- Dual fuel with auto-selection
Cons
- Heavier than smaller models
- Propane running watts lower
- Limited for whole-home backup
Specifications
#4. WEN DF680iX Generator

Charging Ready
Watchdog Sensor
Fuel Power
The WEN DF680iX is uniquely positioned for those needing backup power for electric vehicles, offering a bonded-neutral 240V configuration for Level 2 charging. You’ll also benefit from its robust 5100 running watts on gasoline and the convenience of electric start.
Its dual-fuel capability and integrated CO Watchdog sensor provide flexibility and safety. While it’s a bit heavy, the onboard wheels and handle aid portability. This generator is an excellent, specialized choice for EV owners needing reliable off-grid charging or significant home backup power.
Pros
- EV Level 2 charging capable
- High running watts
- Dual fuel and CO sensor
Cons
- Propane running watts lower
- Heavier for its class
- No remote start
Specifications
#5. WEN DF480iX Generator

Fuel Power
Watchdog Sensor
Ready Outlets
The WEN DF480iX offers a great balance of power and portability, making it suitable for both RV adventures and home backup needs. You’ll appreciate the convenience of electric start and the flexibility of its dual-fuel design, running on gasoline or propane.
Its quiet operation and CO Watchdog sensor ensure safety and minimal disturbance. While it might not power an entire large home, it’s excellent for essential appliances and sensitive electronics. Consider this if you need a versatile generator for various scenarios.
Pros
- Good power for its size
- Electric start
- CO sensor included
Cons
- Propane wattage is lower
- Not as quiet as smaller models
- Limited for whole-home use
Specifications
#6. WEN DF360iX Generator

Watchdog Sensor
Fuel Design
Ready Power
You’ll appreciate the quiet operation of the WEN DF360iX, making it ideal for camping or residential backup without disturbing your neighbors. Its dual-fuel capability offers flexibility, running on either gasoline or propane, and the integrated CO Watchdog sensor provides crucial safety.
This generator is a solid choice for powering essential appliances or RVs. However, if you need to run high-demand equipment, you might find its 2900 running watts a bit limiting. It’s best suited for users prioritizing quietness and safety for moderate power needs.
Pros
- Very quiet operation
- Dual fuel flexibility
- Built-in CO sensor
Cons
- Lower running watts
- Propane wattage is less
- No remote start
Specifications
#7. BILT HARD 4500W Generator

Fuel Power
Sensor Safety
Inverter Power
The BILT HARD 4500W generator offers impressive value, providing dual-fuel capability and a CO sensor at a competitive price point. You’ll appreciate its quiet inverter power, making it suitable for sensitive electronics and noise-conscious environments like campgrounds.
Its compact and lightweight design enhances portability, perfect for RVs or tailgating. While the propane running watts are slightly lower, it still delivers ample power for essential devices. This generator is a fantastic budget-friendly option for moderate power needs where safety and quiet operation are key.
Pros
- Excellent value for money
- Quiet operation
- Compact and lightweight
Cons
- Lower propane wattage
- Recoil start only
- Less powerful than larger models
Specifications

Powering Your Peace of Mind: The Smart Dual Fuel Generator with CO Shutoff
When the power goes out, especially during colder months, keeping your furnace running is paramount. A dual fuel generator offers flexibility in fuel choice, while a carbon monoxide (CO) shutoff feature adds a critical layer of safety. Investing in the right unit means ensuring warmth and security without compromising on safety, so it’s worth taking a moment to understand what makes a generator truly suitable for your home’s needs.
Unpacking the Essentials for Your Home’s Guardian
Before you commit, consider these key aspects to ensure your generator is up to the task.
- Fuel Versatility: The ability to run on both gasoline and propane is a significant advantage, allowing you to choose the most convenient or readily available fuel source during an outage.
- CO Sensor and Auto-Shutoff: This is a non-negotiable safety feature. A built-in carbon monoxide sensor will detect dangerous levels of the odorless gas and automatically shut down the generator, preventing a potentially fatal buildup.
- Wattage Requirements: Determine the total wattage needed to power your furnace and any other essential appliances you want to keep running simultaneously. Overestimating slightly is usually better than underestimating.
- Noise Level: Generators can be loud. Consider the decibel rating if noise is a concern for you or your neighbors, especially if you live in a densely populated area.
- Portability and Storage: Think about where you’ll store the generator and how easily you’ll need to move it. Size, weight, and the presence of wheels can make a big difference.
Navigating the Purchase: Common Missteps to Sidestep
Avoid these common pitfalls to make a confident and safe purchase.
- Ignoring the CO Shutoff: This safety feature is crucial, especially for indoor or near-home use. Never opt for a generator without it if you intend to use it for furnace backup.
- Underestimating Power Needs: Failing to calculate the total wattage required for your furnace and other essential items can lead to a generator that can’t handle the load, leaving you without heat when you need it most.
- Overlooking Fuel Storage Logistics: Consider how you will store both gasoline and propane safely and accessibly for when an outage occurs.
Your Furnace’s New Best Friend: The Top Dual Fuel Picks
For serious home backup power, the Westinghouse 12500 is your go-to, while the WEN DF8000X offers robust power for larger needs. If portability and quieter operation are key, the WEN DF452iX and DF680iX are excellent choices, with the DF480iX and DF360iX fitting smaller budgets and lighter loads. The BILT HARD 4500W is a solid all-rounder for various scenarios.
All these generators feature that crucial CO shutoff for furnace safety and run on both gas and propane. Ready to secure your peace of mind? Click the buttons above to check current availability and make your choice!
Final 3 Picks: Whole Home Power, Home Backup Power, and Quiet RV Power
Ready to decide? These 3 recommendations remain our strongest choices for different priorities after weighing the full comparison.
Westinghouse WGen9500DFc Generator
- 12500 peak watts
- Dual fuel, remote start
- CO sensor included
WEN DF8000X Generator
- 8000 surge watts
- Dual fuel, electric start
- CO Watchdog sensor
WEN DF452iX Generator
- 4500 watts dual fuel
- Remote electric start
- Very quiet operation
