If you’re looking for a dual fuel generator to power sensitive electronics, you’ll want to consider a dual fuel generator with low THD.
What is THD?
Total harmonic distortion (THD) is the amount that a voltage waveform or current is distorted. High THD reduces the efficiency of a portable generator. Low THD is requires for sensitive electronics, look for inverter generators to run these as they have lower THD levels.
Generator THD usually ranges from 1-2% up to 25%. Generators are considered to produce clean power under 6% THD.
Best Dual Fuel Generators with Clean Power
Dual fuel generators are multi fuel machines that use gasoline or propane as fuel to provide electricity for appliances and electronic devices.
We believe the best dual fuel generators with low THD (under 5%) to be the following models:
Champion 2000 Watt Inverter Generator
- Using gasoline, produces 2000 starting watts and 1600 running watts. Using propane, it produces 1800 starting watts and 1440 running watts.
- Ez Start dial -- Operate your 2000-Watt portable generator right out of the box on either gasoline or propane, plus Ultra-Quiet operation of 53 dba from 23 feet is perfect for camping, Tailgating and more
- Parallel ready -- If you choose to buy the optional parallel kit, The space-saving design is parallel ready and can connect with another 2000-Watt inverter to double your output power
- Dual fuel -- Operate your 2000-Watt portable generator right out of the box on either gasoline or propane, plus the unit holds 0. 6-Quarts of oil (Recommended 10W-30) and has a low oil shut-off sensor
- Ultra-quiet operation -- 53 dba from 23 feet is perfect for camping, Tailgating or to backup a few home essentials, Featuring 2000 starting watts, 1600 running watts and up to 11 hours run time
- Champion Support -- Includes 3-year limited with FREE lifetime technical support from dedicated experts
Westinghouse iGen4500DF (Ebay)
DuroMax XP2300iH (Ebay)
Champion 2000 Watt Inverter Generator
- Using gasoline, produces 2000 starting watts and 1600 running watts. Using propane, it produces 1800 starting watts and 1440 running watts.
- Ez Start dial -- Operate your 2000-Watt portable generator right out of the box on either gasoline or propane, plus Ultra-Quiet operation of 53 dba from 23 feet is perfect for camping, Tailgating and more
- Parallel ready -- If you choose to buy the optional parallel kit, The space-saving design is parallel ready and can connect with another 2000-Watt inverter to double your output power
- Dual fuel -- Operate your 2000-Watt portable generator right out of the box on either gasoline or propane, plus the unit holds 0. 6-Quarts of oil (Recommended 10W-30) and has a low oil shut-off sensor
- Ultra-quiet operation -- 53 dba from 23 feet is perfect for camping, Tailgating or to backup a few home essentials, Featuring 2000 starting watts, 1600 running watts and up to 11 hours run time
- Champion Support -- Includes 3-year limited with FREE lifetime technical support from dedicated experts
The Champion 2000 Watt Generator stands out in that it’s the most affordable option on this list.
No lack of compromise with performance because this generator gets up to 11.5 hours of run time on gasoline at 25% load (Up to 34 hours on propane).
It’s also the lightest generator in its class at under 40 lbs. This, along with its convenient top handle makes the Champion 2000 easily portable.
Features
- 79 cc 4 Stoke OHV Engine
- Includes two covered 120V 20A household outlets with clean electricity (less than 3% THD)
- Starting Watts: 2,000/Running Watts: 1,700
- Noise level: 53 dB
- Demensions (in): 17.3 x 11.5 x 17.7
- Weight: 39.5 lbs
- Includes USB Adapter, battery charging cables, engine oil, and oil funnel.
- CARB Compliant
- EPA Certified
PROS
- Lightweight and easily portable
- Long run time
- Affordable
- Quiet
CONS
- Not as quiet as others
- Using gasoline, produces 2000 starting watts and 1600 running watts. Using propane, it produces 1800 starting watts and 1440 running watts.
- Ez Start dial -- Operate your 2000-Watt portable generator right out of the box on either gasoline or propane, plus Ultra-Quiet operation of 53 dba from 23 feet is perfect for camping, Tailgating and more
- Parallel ready -- If you choose to buy the optional parallel kit, The space-saving design is parallel ready and can connect with another 2000-Watt inverter to double your output power
- Dual fuel -- Operate your 2000-Watt portable generator right out of the box on either gasoline or propane, plus the unit holds 0. 6-Quarts of oil (Recommended 10W-30) and has a low oil shut-off sensor
- Ultra-quiet operation -- 53 dba from 23 feet is perfect for camping, Tailgating or to backup a few home essentials, Featuring 2000 starting watts, 1600 running watts and up to 11 hours run time
- Champion Support -- Includes 3-year limited with FREE lifetime technical support from dedicated experts
Features
- Strong 4500 Peak Watts, 3700 running Watts.
- THD-Less than 3%
- Up to 18 hours run time at 25% load
- If you’re within 260 feet of the generator, you can easily control the stop and start button with the remote key fob.
- Very quiet at 52 dB
- 104 lbs
- 5 power outlets
- Three years warranty from the manufacturer
PROS
- High run time (Up to 18 hours)
- Powerful remote start key fob, capable of function up to 260 feet away
- Quiet
CONS
- Expensive
- Heavy
DuroMax XP2300iH (Ebay)
The DuroMax XP2300iH is another option to consider. It performs a solid 6.5 hour run time at 50% load. Its very quiet at only 52 dB compared to most other generators.
Although still easily portable with its top grip handle, it’s a bit heavier than others. Dual fuel options with the DuroMax XP2300iH for either gasoline or propane. However, this is one of the more expensive generators in its class.
Features
- 80 cc 4 Cycle Air Cooled Engine
- Engine speed: 3600-5300 RPM
- Starting Watts: 2,300/Running Watts: 1,800
- Noise level: 52 dB
- Demensions (in): 22x14x20
- Weight: 60 lbs
- CARB Compliant
- EPA Certified
PROS
- Inverter technology provides clean energy preventing power surges. Making it ideal for sensitive electronics like computers, tablets and phones
- Quiet
CONS
- Heavy
- Run time not as long as others
Inverter Generators
Inverter generators convert AC (alternating current) power into DC (Direct current) power and ultimately converts it back to AC power which results in clean, surge free electricity for appliances and electronics.
Because of this, Inverter generators typically have lower THD than conventional generators. When generator shopping for low THD models, look for inverter generators.
Also Read: 16 Things You Should Know about Dual Fuel Generators
Frequently Asked Questions (FAQs)
Can Dual Fuel Generator Run on Natural Gas?
No, dual fuel generators do not typically run on natural gas. Dual fuel generators usually run gasoline or propane. Tri-fuel generators can run on gasoline, propane, or natural gas.
Can You Convert a Dual Fuel Generator to Natural Gas?
Yes, there are tri fuel conversion kits you can use to convert a dual fuel generator into a tri fuel generator.
What Dual Fuel Generators are Made in the USA?
Here are a few dual fuel generators made in the USA.
- Westinghouse WGEN7500DF Generator
- DuroMax XP10000EH Portable Generator
- Pulsar 12000 Dual Fuel Generator
What is the Quietest Dual Fuel Generator?
The Westinghouse iGen4500 IS very quiet at 52 dB.
So, Which is Best?
There is no one size fits all answer.. as each model has its own specializations in addition to your own preferences, usage needs and budget.
Below is the best option for each category
Cleanest Power– Tie (Westinghouse iGen4500 and Champion 2000 both less than 3% THD)
- Using gasoline, produces 2000 starting watts and 1600 running watts. Using propane, it produces 1800 starting watts and 1440 running watts.
- Ez Start dial -- Operate your 2000-Watt portable generator right out of the box on either gasoline or propane, plus Ultra-Quiet operation of 53 dba from 23 feet is perfect for camping, Tailgating and more
- Parallel ready -- If you choose to buy the optional parallel kit, The space-saving design is parallel ready and can connect with another 2000-Watt inverter to double your output power
- Dual fuel -- Operate your 2000-Watt portable generator right out of the box on either gasoline or propane, plus the unit holds 0. 6-Quarts of oil (Recommended 10W-30) and has a low oil shut-off sensor
- Ultra-quiet operation -- 53 dba from 23 feet is perfect for camping, Tailgating or to backup a few home essentials, Featuring 2000 starting watts, 1600 running watts and up to 11 hours run time
- Champion Support -- Includes 3-year limited with FREE lifetime technical support from dedicated experts
Performance- Champion 2000
- Using gasoline, produces 2000 starting watts and 1600 running watts. Using propane, it produces 1800 starting watts and 1440 running watts.
- Ez Start dial -- Operate your 2000-Watt portable generator right out of the box on either gasoline or propane, plus Ultra-Quiet operation of 53 dba from 23 feet is perfect for camping, Tailgating and more
- Parallel ready -- If you choose to buy the optional parallel kit, The space-saving design is parallel ready and can connect with another 2000-Watt inverter to double your output power
- Dual fuel -- Operate your 2000-Watt portable generator right out of the box on either gasoline or propane, plus the unit holds 0. 6-Quarts of oil (Recommended 10W-30) and has a low oil shut-off sensor
- Ultra-quiet operation -- 53 dba from 23 feet is perfect for camping, Tailgating or to backup a few home essentials, Featuring 2000 starting watts, 1600 running watts and up to 11 hours run time
- Champion Support -- Includes 3-year limited with FREE lifetime technical support from dedicated experts
Price- Champion 2000
- Using gasoline, produces 2000 starting watts and 1600 running watts. Using propane, it produces 1800 starting watts and 1440 running watts.
- Ez Start dial -- Operate your 2000-Watt portable generator right out of the box on either gasoline or propane, plus Ultra-Quiet operation of 53 dba from 23 feet is perfect for camping, Tailgating and more
- Parallel ready -- If you choose to buy the optional parallel kit, The space-saving design is parallel ready and can connect with another 2000-Watt inverter to double your output power
- Dual fuel -- Operate your 2000-Watt portable generator right out of the box on either gasoline or propane, plus the unit holds 0. 6-Quarts of oil (Recommended 10W-30) and has a low oil shut-off sensor
- Ultra-quiet operation -- 53 dba from 23 feet is perfect for camping, Tailgating or to backup a few home essentials, Featuring 2000 starting watts, 1600 running watts and up to 11 hours run time
- Champion Support -- Includes 3-year limited with FREE lifetime technical support from dedicated experts
Portability- Champion 2000
- Using gasoline, produces 2000 starting watts and 1600 running watts. Using propane, it produces 1800 starting watts and 1440 running watts.
- Ez Start dial -- Operate your 2000-Watt portable generator right out of the box on either gasoline or propane, plus Ultra-Quiet operation of 53 dba from 23 feet is perfect for camping, Tailgating and more
- Parallel ready -- If you choose to buy the optional parallel kit, The space-saving design is parallel ready and can connect with another 2000-Watt inverter to double your output power
- Dual fuel -- Operate your 2000-Watt portable generator right out of the box on either gasoline or propane, plus the unit holds 0. 6-Quarts of oil (Recommended 10W-30) and has a low oil shut-off sensor
- Ultra-quiet operation -- 53 dba from 23 feet is perfect for camping, Tailgating or to backup a few home essentials, Featuring 2000 starting watts, 1600 running watts and up to 11 hours run time
- Champion Support -- Includes 3-year limited with FREE lifetime technical support from dedicated experts
Safety- DruoMax XP2300iH
Noise – Tie (DuroMAX 2300 and Westinghouse iGen4500 both at 52 dB)
Conclusion
Each of the above models are dual fuel generators with low THD and can be used to safely power sensitive electronic devices.
We believe the best overall dual fuel generator with clean power to be the Champion 2000 Watt Dual fuel Inverter generator due to its affordable price, portability, long run time and low THD level.
- Using gasoline, produces 2000 starting watts and 1600 running watts. Using propane, it produces 1800 starting watts and 1440 running watts.
- Ez Start dial -- Operate your 2000-Watt portable generator right out of the box on either gasoline or propane, plus Ultra-Quiet operation of 53 dba from 23 feet is perfect for camping, Tailgating and more
- Parallel ready -- If you choose to buy the optional parallel kit, The space-saving design is parallel ready and can connect with another 2000-Watt inverter to double your output power
- Dual fuel -- Operate your 2000-Watt portable generator right out of the box on either gasoline or propane, plus the unit holds 0. 6-Quarts of oil (Recommended 10W-30) and has a low oil shut-off sensor
- Ultra-quiet operation -- 53 dba from 23 feet is perfect for camping, Tailgating or to backup a few home essentials, Featuring 2000 starting watts, 1600 running watts and up to 11 hours run time
- Champion Support -- Includes 3-year limited with FREE lifetime technical support from dedicated experts
The Westinghosue iGen4500 is the most powerful option with up to 4500 peak Watts.
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