Best Tri Fuel Generators in 2026: 15 Picks by Stated Details
The best tri fuel generator in this shortlist is the GENMAX 13,500 watt tri fuel inverter, because its title states all 6 details this guide compares: tri fuel (gasoline, propane and natural gas), an inverter type, the watts group, electric start, a 50A outlet (RV ready) and a CO sensor. The other 14 picks are ordered by how many details their titles state, then by their place in the pool. Every pick is compared on stated details and live prices only.
15 picks from 12 generators that match this guide with a price we can quote today, made by 14 makers. Every price below is live and carries the moment it was read.
The picks at a glance
Which one should you buy?
- For a home with a natural gas line: A tri fuel title names gasoline, propane and natural gas, so a home with a natural gas line already has one of the three fuels available. The top pick is an inverter title that states all three fuels and names a CO sensor, electric start and a 50A outlet. See pick 1
- For a home on a propane tank: Tri fuel titles include propane among the three fuels named. The Generac 12,500 starting watt portable title names propane as one option and states electric start and a CO sensor. See pick 4
- For a weekend camping trip: An inverter title keeps the stated details simple for a portable setup. The WEN 13,000 title names an inverter, tri fuel, electric start and a CO sensor. See pick 2
- For an RV with a matching 50A inlet: A title that names an RV outlet appears in this catalogue as RV ready. The Generac 12,500 watt title names an RV outlet and electric start; check the outlet against the plug on your own rig and read the maker's page. See pick 8
The 15 picks
1 Most stated details in the shortlist
GENMAX 13500W Tri-Fuel Inverter Generator（2026 Model ）— 50A Outlet
- Type
- Inverter
- Fuel
- Tri Fuel
- Watts
- Over 9000 W
- Electric start
- Yes
- RV ready
- Yes
- CO sensor
- Yes
$2,899.99 (as of 10/18/2026 23:14 PDT - Details)
Ranks first because the title states all 6 details this guide reads: fuel, type, watts group, electric start, RV ready and a CO sensor. No other pick in this shortlist states as many listed details.
Pros
- Title names an inverter and all three fuels: gasoline, propane and natural gas
- Title names a 50A outlet (RV ready in the catalogue)
- Title names a CO sensor
- Title names electric start and ATS in the title
Cons
- No running watt figure stated in the title
- Weight, tank size and noise are not stated by the seller
Good fit if
- For a buyer who wants the most stated details in one tri fuel title
- For a buyer who wants an inverter with a 50A outlet named in the title
Skip if
- For a buyer who wants an open frame portable rather than an inverter
- For a buyer who needs details the title does not state, such as runtime or noise
Verdict: The title states more listed details than any other tri fuel pick here.
2 Inverter with CO sensor and electric start
WEN 13,000-Watt 120V/240V Tri-Fuel Inverter Generator
- Type
- Inverter
- Fuel
- Tri Fuel
- Watts
- Over 9000 W
- Electric start
- Yes
- CO sensor
- Yes
Ranks second with 5 stated details: fuel, type, watts group, electric start and a CO sensor. It is the first of the 5-detail picks by pool order.
Pros
- Title names an inverter and tri fuel: gasoline, propane and natural gas
- Title names a CO sensor
- Title names electric start
- One of the picks tied at 5 stated details
Cons
- No RV outlet named in the title
- No running watt figure stated in the title
Good fit if
- For a buyer who wants an inverter with a CO sensor named in the title
- For a buyer who wants electric start on a tri fuel unit
Skip if
- For a buyer who wants an RV ready outlet named in the title
- For a buyer who wants an open frame portable title
Verdict: A tri fuel inverter title that names electric start and a CO sensor.
3 Inverter with CO sensor and remote start
Westinghouse 12000 Peak Watt Tri-Fuel Portable Inverter Generator
- Type
- Inverter
- Fuel
- Tri Fuel
- Watts
- Over 9000 W
- Electric start
- Yes
- CO sensor
- Yes
Tied at 5 stated details with 4 other picks, it follows the WEN entry by pool order. The title calls the first figure a peak figure.
Pros
- Title names an inverter and tri fuel
- Title names a CO sensor
- Title names remote electric start
- Title states the first figure as 12,000 peak watts
Cons
- No RV outlet named in the title
- No running watt figure stated in the title
Good fit if
- For a buyer who wants remote start named in the title
- For a buyer who wants a tri fuel inverter with a CO sensor
Skip if
- For a buyer who wants an RV ready outlet named in the title
- For a buyer who prefers a conventional open frame portable
Verdict: A tri fuel inverter with remote start and a CO sensor named in the title.
4 Portable tri fuel with electric start and CO sensor
Generac 12,500 Starting Watt Tri-Fuel Portable Generator
- Type
- Portable
- Fuel
- Tri Fuel
- Watts
- Over 9000 W
- Electric start
- Yes
- CO sensor
- Yes
$1,169.00 (as of 10/18/2026 23:14 PDT - Details)
With 5 stated details it ties with 4 other picks and ranks by pool order after the Westinghouse 12,000. The title states the first figure as starting watts.
Pros
- Title names a portable generator and tri fuel
- Title names electric start
- Title names a CO sensor
- Title states the first figure as 12,500 starting watts
Cons
- No RV outlet named in the title
- No running watt figure stated in the title
Good fit if
- For a buyer who wants a portable title with a CO sensor
- For a buyer who wants electric start on a tri fuel portable
Skip if
- For a buyer who wants an inverter title
- For a buyer who wants an RV outlet named in the title
Verdict: A portable tri fuel title that names electric start and a CO sensor.
5 Inverter with CO sensor and remote electric start
Westinghouse 8200 Peak Watt Tri-Fuel Portable Inverter Generator
- Type
- Inverter
- Fuel
- Tri Fuel
- Watts
- 5001 to 9000 W
- Electric start
- Yes
- CO sensor
- Yes
Tied at 5 stated details, it ranks by pool order among the 5-detail picks. It is one of 2 picks in this shortlist whose first watt figure falls in the 5,001 to 9,000 W group.
Pros
- Title names an inverter and tri fuel
- Title names a CO sensor
- Title names remote electric start
- One of 2 picks in the 5,001 to 9,000 W group in this shortlist
Cons
- No RV outlet named in the title
- No running watt figure stated in the title
Good fit if
- For a buyer who wants a tri fuel inverter in the 5,001 to 9,000 W group
- For a buyer who wants remote electric start and a CO sensor named
Skip if
- For a buyer who wants a first figure over 9,000 W
- For a buyer who wants an RV outlet named in the title
Verdict: A tri fuel inverter with remote start and a CO sensor, in the 5,001 to 9,000 W group.
6 Home backup title with CO sensor and remote start
Westinghouse 18000 Peak Watt Tri-Fuel Home Backup Portable Generator
- Type
- Portable
- Fuel
- Tri Fuel
- Watts
- Over 9000 W
- Electric start
- Yes
- CO sensor
- Yes
Tied at 5 stated details with 4 other picks, it ranks by pool order. The title carries a home backup label and names remote electric start.
Pros
- Title names a home backup portable generator and tri fuel
- Title names a CO sensor
- Title names remote electric start
- Title states the first figure as 18,000 peak watts
Cons
- No RV outlet named in the title
- No running watt figure stated in the title
Good fit if
- For a buyer who wants a home backup label in the title
- For a buyer who wants remote electric start and a CO sensor named
Skip if
- For a buyer who wants an inverter title
- For a buyer who wants an RV outlet named in the title
Verdict: A home backup portable that names tri fuel, remote start and a CO sensor.
7 Portable tri fuel with remote electric start
Westinghouse 14500 Peak Watt Tri-Fuel Home Backup Portable Generator
- Type
- Portable
- Fuel
- Tri Fuel
- Watts
- Over 9000 W
- Electric start
- Yes
With 4 stated details it ranks after the 5-detail picks, by pool order. The title names remote electric start but does not name a CO sensor or an RV outlet.
Pros
- Title names a portable generator and tri fuel
- Title names remote electric start
- Title states the first figure as 14,500 peak watts
- Home backup label in the title
Cons
- No CO sensor named in the title
- No RV outlet named in the title
Good fit if
- For a buyer who wants a portable with remote electric start
- For a buyer who wants a home backup label in the title
Skip if
- For a buyer who wants a CO sensor named in the title
- For a buyer who wants an RV outlet named in the title
Verdict: A portable tri fuel title with remote electric start and a home backup label.
8 Names electric start and an RV outlet
Generac 12,500 Watt Tri Fuel Generator with EFI and Electric Start | Gas
- Fuel
- Tri Fuel
- Watts
- Over 9000 W
- Electric start
- Yes
- RV ready
- Yes
$1,399.00 (as of 10/18/2026 23:14 PDT - Details)
With 4 stated details it ranks by pool order. It is one of 2 picks in this shortlist with an RV ready outlet named in the title.
Pros
- Title names an RV outlet (RV ready in the catalogue)
- Title names electric start
- Title states a 12,500 watt figure
- Tri fuel named in the title
Cons
- Type of generator not stated by the seller
- No CO sensor named in the title
Good fit if
- For a buyer who wants an RV outlet named in the title
- For a buyer who wants electric start in the title
Skip if
- For a buyer who wants the title to name the generator type
- For a buyer who wants a CO sensor named in the title
Verdict: A tri fuel title that names electric start and an RV outlet.
9 Inverter with wireless remote start
Champion 11,000-Watt Remote Start Tri Fuel Portable Inverter Generator
- Type
- Inverter
- Fuel
- Tri Fuel
- Watts
- Over 9000 W
- Electric start
- Yes
$1,999.99 (as of 10/18/2026 22:48 PDT - Details)
With 4 stated details it ranks by pool order. The title names a wireless remote start, a detail that one other pick in this shortlist also carries.
Pros
- Title names an inverter and tri fuel
- Title names wireless remote start
- Title states an 11,000 watt figure
Cons
- No CO sensor named in the title
- No RV outlet named in the title
Good fit if
- For a buyer who wants wireless remote start in the title
- For a buyer who wants a tri fuel inverter
Skip if
- For a buyer who wants a CO sensor named in the title
- For a buyer who wants an RV outlet named in the title
Verdict: A tri fuel inverter with wireless remote start named in the title.
10 Inverter tri fuel with electric start
Pulsar PGD105TiSCO Tri Fuel Inverter Generator
- Type
- Inverter
- Fuel
- Tri Fuel
- Watts
- Over 9000 W
- Electric start
- Yes
With 4 stated details it ranks by pool order. The title names all three fuels and electric start, and leaves a CO sensor and an RV outlet unstated.
Pros
- Title names an inverter and tri fuel
- Title names electric start
- Title states a 10,500 watt figure
- Title names gasoline, propane and natural gas
Cons
- No CO sensor named in the title
- No RV outlet named in the title
Good fit if
- For a buyer who wants the three fuels named in the title
- For a buyer who wants a tri fuel inverter with electric start
Skip if
- For a buyer who wants a CO sensor named in the title
- For a buyer who wants an RV outlet named in the title
Verdict: A tri fuel inverter title with electric start and all three fuels named.
11 Highest stated watt figure here: 28,000 W
DuroMax XP28000iHT 28
- Type
- Inverter
- Fuel
- Tri Fuel
- Watts
- Over 9000 W
- Electric start
- Yes
$7,999.00 (as of 10/18/2026 23:01 PDT - Details)
With 4 stated details it ranks by pool order. It holds the highest first watt figure of the 15 picks, at 28,000 watts.
Pros
- Title states a 28,000 watt figure, the highest in this shortlist
- Title names an inverter and tri fuel
- Title names remote start
Cons
- No CO sensor named in the title
- No RV outlet named in the title
Good fit if
- For a buyer who wants the highest stated watt figure among these picks
- For a buyer who wants a tri fuel inverter with remote start
Skip if
- For a buyer who wants a CO sensor named in the title
- For a buyer who wants an RV outlet named in the title
Verdict: A tri fuel inverter that states the highest first watt figure in this list.
12 Portable with CO sensor and ATS in the title
GENMAX 15000W Tri-Fuel Portable Generator
- Type
- Portable
- Fuel
- Tri Fuel
- Watts
- Over 9000 W
- CO sensor
- Yes
$1,899.99 (as of 10/18/2026 23:14 PDT - Details)
With 4 stated details it ranks by pool order. The title names a CO sensor but does not name electric start.
Pros
- Title names a portable generator and tri fuel
- Title names a CO sensor
- Title names an ATS in the title
Cons
- No electric start named in the title
- No RV outlet named in the title
Good fit if
- For a buyer who wants a portable with a CO sensor named
- For a buyer who wants an ATS label in the title
Skip if
- For a buyer who wants electric start named in the title
- For a buyer who wants an inverter title
Verdict: A portable tri fuel title that names a CO sensor and an ATS.
13 Names a CO sensor and electric start
WEN 14,500-Watt 120V/240V Tri-Fuel Generator for Gas
- Fuel
- Tri Fuel
- Watts
- Over 9000 W
- Electric start
- Yes
- CO sensor
- Yes
With 4 stated details it ranks by pool order. The title names a CO sensor and electric start but does not name the type of machine.
Pros
- Title names a CO sensor
- Title names electric start
- Title states a 14,500 watt figure
- Transfer-switch ready label in the title
Cons
- Type of generator not stated by the seller
- No RV outlet named in the title
Good fit if
- For a buyer who wants a CO sensor and electric start in one title
- For a buyer who wants a transfer-switch ready label in the title
Skip if
- For a buyer who wants the title to name the generator type
- For a buyer who wants an inverter title
Verdict: A tri fuel title that names a CO sensor, electric start and a transfer-switch ready label.
14 Wireless remote start inverter below 9,000 W
Champion 8500-Watt Remote Start Tri Fuel Portable Inverter Generator
- Type
- Inverter
- Fuel
- Tri Fuel
- Watts
- 5001 to 9000 W
- Electric start
- Yes
$1,542.00 (as of 10/18/2026 22:48 PDT - Details)
With 4 stated details it ranks by pool order. It is one of 2 picks whose first watt figure falls in the 5,001 to 9,000 W group.
Pros
- Title names an inverter and tri fuel
- Title names wireless remote start
- One of 2 picks in the 5,001 to 9,000 W group in this shortlist
Cons
- No CO sensor named in the title
- No RV outlet named in the title
Good fit if
- For a buyer who wants a tri fuel inverter in the 5,001 to 9,000 W group
- For a buyer who wants wireless remote start in the title
Skip if
- For a buyer who wants a CO sensor named in the title
- For a buyer who wants a first watt figure over 9,000 W
Verdict: A tri fuel inverter with wireless remote start, in the 5,001 to 9,000 W group.
15 Open frame inverter naming a CO sensor
GENMAX 10500 Peak Watt Tri Fuel Open Frame Inverter Generator
- Type
- Inverter
- Fuel
- Tri Fuel
- Watts
- Over 9000 W
- CO sensor
- Yes
$1,399.99 (as of 10/18/2026 23:14 PDT - Details)
With 4 stated details it ranks by pool order. It is the only pick in this shortlist whose title names an open frame inverter.
Pros
- Title names an open frame inverter and tri fuel
- Title names a CO sensor
- Title states a 10,500 peak watt figure
Cons
- No electric start named in the title
- No RV outlet named in the title
Good fit if
- For a buyer who wants an open frame label in the title
- For a buyer who wants a CO sensor named in the title
Skip if
- For a buyer who wants electric start named in the title
- For a buyer who wants an RV outlet named in the title
Verdict: The only open frame inverter title in this shortlist, with a CO sensor named.
Side by side
How we picked
The pool holds 19 tri fuel generator listings whose titles say the generator runs on gasoline, propane and natural gas. The shortlist takes 15 of them, ordered first by how many of the 6 details each title states (type, fuel, watts group, electric start, RV ready and a CO sensor), then by the order they appear in the pool. The pick with the most stated details ranks first; picks tied on detail count follow pool order. Every listing is compared on the details stated in its title and on the live price shown with its clock time. The catalogue has no data for runtime, noise, fuel use, weight or tank size, so those are never compared here. The first watt figure a title prints is often the starting (peak) figure; the running figure is on the maker's page.
How to choose
What tri fuel means in a title
A tri fuel title names three fuels: gasoline, propane and natural gas. All 19 listings in this pool carry that label. The EIA pages in the sources describe what gasoline, propane and natural gas are; the catalogue does not state how a generator is converted between fuels or how any fuel is stored or refilled.
Inverter, open frame or standby
A title may name the type of machine: an inverter, an open frame portable or a standby unit. Inverter, open frame and standby are different kinds of generator, and a standby unit is installed by a professional. This guide compares only what the title states: it never claims one type is quieter, cleaner or safer than another.
Starting watts and running watts in a title
The first watt figure a title prints is often the starting (peak) figure, and the running figure is lower and printed on the maker's page. This catalogue groups only the first figure, for example Over 9,000 W or 5,001 to 9,000 W. The guide never states what a figure will actually run.
Electric start, RV outlets and CO sensors as listing words
A title may name electric start, an RV ready outlet or a CO sensor. Those are listing words from the seller, and the catalogue has no data on how they perform. If a title names an RV outlet, check the outlet against the plug on your own rig and read the maker's page.
Who connects a generator to a house
Any connection of a generator to a home is a job for a licensed electrician, the maker and the local permit office. This guide never describes backfeeding, an inlet box, a transfer switch, a panel or wiring steps. Standby and whole house connections follow the same rule.
What this guide leaves out (and why)
The catalogue holds no data on measured output, runtime, fuel use, tank size, noise, weight, engine size, emissions or warranty. This guide compares only the details each listing title states and the live price printed on the page. Anything else belongs on the maker's page.
Questions
What does tri fuel mean in a listing title?
A tri fuel title names three fuels: gasoline, propane and natural gas. All 19 listings in this pool are tri fuel titles. The EIA pages in the sources explain what each fuel is. The catalogue does not state how a generator is converted between fuels or how fuel is stored; read the maker's manual for that.
Is the first watt figure the running figure?
The first figure a title prints is often the starting (peak) figure. The running figure is usually lower and is printed on the maker's page. This catalogue groups only the first figure, such as Over 9,000 W or 5,001 to 9,000 W, and the guide never states what a figure will run.
What does this guide compare?
Each listing is compared on the details stated in its title: type, fuel, watts group, electric start, RV ready and a CO sensor. The ordering rule ranks titles with more stated details first. The guide cannot compare runtime, noise, fuel use, weight or tank size because the catalogue has no data for them.
Does this guide explain how to connect a generator to a house?
No. Any connection of a generator to a home is for a licensed electrician, the maker and the local permit office. This guide never describes a transfer switch, an inlet, a panel or wiring steps, and it never advises plugging a generator into a house outlet.
Does this guide cover noise, runtime or fuel use?
No. The catalogue has no data for noise, runtime, fuel use, tank size or weight, so those are never compared here. To read about what those pages do cover, use the maker's manual and the CPSC, CDC and EPA pages in the sources.
Recent updates
- : First published.