Illustration of a camper van with a portable generator
|

Dual Fuel Generators for RVs: Models with TT-30R Outlets

ByZoe Johnson

An RV generator has to fit a 30 amp RV outlet, stay quiet enough for a campground and run on a fuel you can carry. Dual fuel models cover the last point, since they run on gasoline or a propane tank. This guide compares the dual fuel models in our generator comparison tool that list a TT-30R RV outlet, using manufacturer figures retrieved on 4 November 2026.

Models with a TT-30R outlet

Specification Champion201050 4000W Dual Fuel InverterInverterChampion201278 4500W Electric Start Dual Fuel InverterInverterChampion201321 4500W Dual Fuel Open Frame InverterInverterWestinghouseiGen5000DFInverter
Price and ownership cost
Listed price (USD, estimate)Not publishedChampion's product page does not state a priceNot publishedChampion's product page does not state a priceNot publishedChampion's product page does not state a price$1,199.00Westinghouse MSRP
Price per rated watt (derived)n/an/an/a$0.31per watt, first fuel listed
Warrantynot stated on the page reviewed3 years limited, free lifetime technical support3 years limited, free lifetime technical support3 years residential, 1 year commercial
MaintenanceNot statedNot statedNot statedNot stated
Oil capacityNot statedNot statedNot statedNot stated
Power
Rated output by fuel
  • 3,000 W gasoline
  • 2,700 W propane
  • 3,500 W gasoline
  • 3,150 W propane
  • 3,650 W gasoline
  • 3,285 W propane
  • 3,900 W gasoline
  • 3,500 W propane
Starting or surge watts4,000 W4,500 W4,500 W5,000 W
Fuel typesGasoline / PropaneGasoline / PropaneGasoline / PropaneGasoline / Propane
EngineNot statedNot statedNot statedNot stated
Displacement (cc)149 cc212 cc224 cc224 cc
Runtime, fuel use and running cost
Fuel tank (gal)1.54 gal2.3 gal4.02 gal3.4 gal
Runtime on a tank, as stated
  • 10 h gasoline, 1/4 load
  • 25 h propane, 1/4 load, 20 lb tank
  • 14 h gasoline, 1/4 load
  • 21 h propane, 1/4 load
  • 22 h gasoline, 1/4 load
  • 21 h propane, 1/4 load
  • 18 h gasoline, 1/4 load
  • 22 h propane, 1/4 load, 20 lb tank
Fuel use, as statedNot statedNot statedNot statedNot stated
Fuel per kWh (derived)0.205 galgasoline at 25% load, from tank size and stated runtime0.187 galgasoline at 25% load, from tank size and stated runtime0.201 galgasoline at 25% load, from tank size and stated runtime0.194 galgasoline at 25% load, from tank size and stated runtime
Fuel cost per kWh at your price (derived)
Fuel cost per hour at that load (derived)
Size and comfort
Weight (lb)51.8 lb99.2 lb92.6 lb104.7 lb
DimensionsNot statedNot statedNot statedNot stated
Noise (as stated)64 dBA at 23 ft61 dB(A) at 23 ft64 dB(A)52 dBA
Starting methodRecoilElectric, RecoilElectricElectric, Remote, Recoil
Features
Inverter outputYesYesYesYes
Total harmonic distortionNot statedunder 3%Not stated3% or less
Automatic voltage regulation (AVR)Not statedNot statedNot statedNot stated
CO sensor shutdownNot statedNot statedNot statedNo
Transfer switch readyNot statedNot statedNot statedNo
Parallel capableNot statedYesYesYes
Outlets and connections5-20R duplex, TT-30R (25 A), 12V DC5-20R duplex, TT-30R, two USB, parallel portTT-30R RV, 5-20R duplex, 12V 8A DC, parallel ports5-20R duplex, two USB, TT-30R
Fit
Suited toCamping and outdoors, RV and travel trailer, Essential circuitsCamping and outdoors, RV and travel trailer, Essential circuitsCamping and outdoors, RV and travel trailer, Essential circuitsCamping and outdoors, RV and travel trailer, Essential circuits
Also worth knowingRuns on gasoline or propaneDual fuel; two USB ports; parallel portOpen frame design; battery included for electric start; parallel portsInverter output, key fob start
Honest take
Advantages
  • Runs on gasoline or propane, with up to 25 hours on a 20 lb propane tank at 25% load
  • 3,000 running watts on gasoline at 51.8 lb
  • Inverter output suits laptops and other electronics
  • Runs on gasoline (3,500 W) or a 20 lb propane tank (3,150 W)
  • 21 hours stated on propane at 25% load
  • Stated THD under 3%, with a TT-30R RV outlet
  • 22 hours stated on gasoline and 21 hours on propane, both at 25% load
  • Runs at 3,650 W on gasoline and 3,285 W on propane
  • At 92.6 lb it is lighter than the 99.2 lb 201278 while holding a 4.02 gal tank
  • 52 dBA stated, quieter than the other dual fuel models listed
  • Inverter output at 3% THD or less is safe for electronics
  • Dual fuel with 18 hours on gasoline at 25% load
  • Electric, remote and recoil start, parallel capable
Drawbacks
  • Propane output drops to 2,700 running watts
  • Recoil start only
  • Small 1.54 gal gasoline tank
  • 99.2 lb, heavier than the 92.6 lb open frame 201321
  • Gasoline tank is 2.3 gal, so gasoline run time (14 h at 25%) is shorter than propane
  • Champion does not publish a price on the product page
  • Total harmonic distortion is not listed on the page
  • Stated noise is 64 dB(A), higher than the 61 dB(A) of the 201278
  • Champion does not publish a price on the product page
  • Costs nearly twice the WGen3600DF for similar running watts
  • 104.7 lb is heavy for an inverter
  • No CO sensor listed
  • Not transfer-switch ready
Source
Where the figures come fromChampion Power Equipment product pageRetrieved 2026-11-02Champion Power Equipment product pageRetrieved 2026-11-04Champion Power Equipment product pageRetrieved 2026-11-04Westinghouse product page (address still shows the earlier iGen4500DF name; page lists the iGen5000DF)Retrieved 2026-11-02

All five list a TT-30R receptacle. That is the 30 amp, 120 V RV plug. Check your RV’s inlet and inverter or converter before buying.

What stands out

  • Lightest: Champion 201050 at 51.8 lb. The others are 92.6 lb (201321), 99.2 lb (201278), 104.7 lb (iGen5000DF) and 120 lb (WGen3600DF).
  • Most gasoline running watts: iGen5000DF at 3,900 W, then the 201321 at 3,650 W, the WGen3600DF at 3,600 W, the 201278 at 3,500 W and the 201050 at 3,000 W.
  • Propane run time at 25% load: 25 hours (201050), 21 hours (201278 and 201321), 22 hours (iGen5000DF) and 16.5 hours (WGen3600DF). These depend on the propane tank the maker used.
  • Noise: iGen5000DF 52 dBA, 201278 61 dB(A), 201321 64 dB(A), 201050 64 dBA and WGen3600DF 68 dBA. Measurement distances differ.
  • Price: the WGen3600DF is $629 MSRP and the iGen5000DF $1,199 MSRP. Champion states none.

What size for an RV?

A single 30 amp RV circuit is 3,600 W at 120 V, and an air conditioner can need a high starting surge. Add up what you will run with the load calculator and check the air conditioner’s nameplate. The Champion 201278 and 201321 list parallel ports, so you can link a second unit if the maker’s parallel kit suits your setup.

Rules for RV use

  • Run the generator outdoors, away from windows, doors and vents, because of carbon monoxide. Read the generator safety guide.
  • Many campgrounds limit quiet hours or generator use. Check the rules where you stay.
  • Propane is convenient when you already carry a tank, but it lowers the output by roughly 10%.

What we could not verify

  • Champion prices and CO sensors. They are not stated on the pages we reviewed.
  • Campground noise limits. These are set locally and are not in our data.
  • Reliability on the road. We have no failure data.

Frequently asked questions

What size dual fuel generator do I need for an RV?

Add up your running watts. A 30 amp RV circuit supplies 3,600 W at 120 V, and the models above run from 3,000 W to 3,900 W on gasoline.

Is propane or gasoline better in an RV?

Propane is easier to store, while gasoline gives about 10% more output. A dual fuel unit lets you pick, depending on your tank and trip.

Can I run an RV air conditioner on these?

That depends on the air conditioner’s starting and running watts against the generator’s ratings. Check its nameplate before you buy.

Photo of Zoe Johnson

Zoe Johnson writes for Generator Flow, covering generator sizing, fuel and runtime, safe installation, maintenance and troubleshooting.

Similar Posts