Product images: Amazon listings

GENMAX 17,000W Tri-Fuel Inverter Review

Name: GENMAX 17,000W Tri-Fuel Inverter
Brand: GENMAX
SKU: B0DGKHZWFX

7.7Very good · out of 10Rated from the listing's specs, no buyer reviews yet

Written from the listing's specs, not from our own use · How we rate

If you're after 13,500 running and 17,000 peak watts, the GENMAX 17,000W Tri-Fuel Inverter delivers, with gasoline, propane and natural gas on one panel and an inverter engine that idles down at light load on top. Think of it for whole-house backup on three fuels: 7.7/10 on what its listing documents.

See current price ↗Prices change often: the listing shows today's.

Check the price on Amazon ↗Affiliate link · price and stock on Amazon

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Specifications

Brand	GENMAX
Category	Inverter generators
Running output	13500 W
Peak output	17000 W
Listed fuels	gasoline, natural gas, propane
CO sensor	Stated in the listing
Transfer switch ready	Stated in the listing
Outlets named in the listing	50 A (14-50R), USB
Stated warranty	3 years
CARB compliant	Stated in the listing
ASIN	B0DGKHZWFX

Full listing title: GENMAX 17000w Peak Tri-Fuel Inverter Generator-Features 2-Wire Auto Start/Stop,Ultra-Quiet Tech,CO Sensor,Digital Display&Dual 50A Outlets-Ideal for Home Backup&Construction Sites,EPA/CARB Compliant

Listing evidence

Running output	Exact listing
Peak output	Exact listing

Updated October 2026

Exact listing, ASIN B0DGKHZWFX

Rating method published

Compared with its closest rivals

Two generators that are also inverters, of about the same size, closest to it on our rating, each with a dated price.

Compare side by side ↗

GENMAX 17,000W Tri-Fuel Inverter

7.7Very good · out of 10See current price ↗

Stated: 13,500 W running · 17,000 W peak · Gasoline, Propane, Natural gas
Inverter generators

This product ↑

GENMAX 12,500W Tri-Fuel Inverter

7.7Very good · out of 10$2,649.99 Price on Sep 30, 2026 · may have changed

Stated: 10,500 W running · Gasoline, Propane, Natural gas
Inverter generators

See the review ↗

DuroMax XP16000iH

7.3Good · out of 10$4,866.50 Price on Sep 30, 2026 · may have changed

Stated: 13,000 W running · 16,000 W peak · Gasoline, Propane
Inverter generators

See the review ↗

13,500 running watts, 17,000 at start-up

That's the running figure the listing states, on gasoline. On paper that covers the fridge, the freezer, the sump pump and, through a transfer switch, the furnace or a well pump; the start-up surge of the biggest motor is the number to check.

What it has going for it

What changes on the night the power goes out

Three fuels. Natural gas from the house line means no refuelling at 2 a.m., and it is also the lowest-output fuel of the three. The hookup is a job for a licensed gas fitter, not a hose and a guess.

Inverter. The engine speeds up and slows down with the load, so it is quieter and thriftier at 3 a.m. when only the fridge and a lamp are on. The clean sine wave is kinder to laptops, TVs and the furnace control board.

Extension cords or a transfer switch?

Extension cords: the fridge, the freezer and a lamp or two plug straight into the 120 V outlets on the frame. It costs little, but the furnace, the well pump and anything hard-wired stay off.

A transfer switch: the listing names a 50 amp outlet. An inlet box on the outside wall takes that plug, and an electrician wires it to a transfer switch or an interlock. After that, the furnace and the well pump run off the generator as well; the electrician's bill comes on top.

Great for you if…

You want most of the house running, not just the fridge
Your house already has a natural gas line
Laptops, TVs or a furnace board will be plugged in

Skip it if…

You'd rather wait for buyer reviews: none are captured for this listing yet
Neighbours are close and you want a number: the listing gives no dB figure

What GENMAX promises

The seller states, word for word, in the GENMAX 17,000W Tri-Fuel Inverter listing:

Delivers 17,000 starting watts (13,500 running watts) for powering your entire home during emergencies or running heavy tools on demanding job sites – instant power in seconds, anytime, anywhere.
Advanced inverter technology produces pure sine wave power (≤3% THD) safe for sensitive electronics like laptops and phones.
Comprehensive safeguards: overload,thermal,low-voltage,CO auto-shutdown (sensors detect carbon monoxide).
Digital LCD displays runtime, voltage, and load status.
The cartridge-type air filter allows replacement without removing the fuel tank or other parts, simplifying maintenance.

Their words and their figures, not our measurements. How loud it is twenty feet from your bedroom window, and whether it catches your well pump's start-up surge, no listing can tell you.

GENMAX 17,000W Tri-Fuel Inverter, view 3

Outlets, fuel and what's in the box

What the GENMAX 17,000W Tri-Fuel Inverter listing names:

13,500 running watts, 17,000 peak
Runs on gasoline, propane and natural gas
Outlets named: 50 amp, USB
Electric start
CO sensor
CARB compliant

Warranty & support: A 3-year warranty, as stated in the listing · CARB compliance stated (all 50 states).

That is the maker's promise, not ours. Keep the order confirmation, and register the GENMAX 17,000W Tri-Fuel Inverter if the maker asks you to.

Read the manual for the fuel, the oil grade and what each outlet is rated for before the first start.

GENMAX 17,000W Tri-Fuel Inverter, view 4

Price and availability

See current price ↗

We have no recent price on file for this listing, so we don't print an old one.

Add the hookup to the budget: a heavy cord, an inlet box and an electrician's visit for the transfer switch or interlock.

The button opens the exact listing (ASIN B0DGKHZWFX), where today's price, stock and seller apply.

GENMAX 17,000W Tri-Fuel Inverter, view 5

A better fit for your load list?

Want a CO shutoff? The WEN 14,500W Tri-Fuel, CO Watchdog (7.8/10) names a CO sensor that shuts the engine off.

Well pump or central air on the list? The Westinghouse 28,000W Tri-Fuel (7.8/10) is rated 20,000 running watts.

Only the fridge and a few lights? The Westinghouse 5,000W Dual Fuel Inverter (9.2/10) is a 3,900 W inverter.

Our take

The verdict

The GENMAX 17,000W Tri-Fuel Inverter earns its place with 13,500 running and 17,000 peak watts and gasoline, propane and natural gas on one panel. No buyer reviews yet, so this GENMAX inverter generator has to win you over on paper. The catch with the GENMAX: no word on the propane rating or the runtime. We'd pick it if you want most of the house running, not just the fridge; otherwise, put it next to the GENMAX 12,500W Tri-Fuel Inverter first.

Check the price on Amazon ↗Affiliate link · price and stock on AmazonAll inverter generators →

Living with it

Delivery day

Fill it with oil before the first start, then run it for a few minutes outside with a small load.

The first outage

Push the start button, let it warm up, then add loads one at a time, the biggest motor first. Propane or gas: decide before the storm and have the hose and the tank ready.

Between storms

Run it every month or so for 20 minutes and keep the battery charged. On propane you avoid stale gas in the carburetor; on gas, add stabiliser or run it dry before storage. Our maintenance schedule has the full list.

Upkeep

First oil change after the break-in hours in the manual (the hour meter counts them), then on schedule. Air filter and spark plug once a season, and a cover for the months it sits.

The one thing we'd check first

Before the GENMAX 17,000W Tri-Fuel Inverter ships, check your hookup: 13,500 running watts are only useful through an inlet box and a transfer switch or interlock, so price in the electrician.

Before you buy

Your load list

13,500 running watts and 17,000 at start-up, per the listing. Write down what has to run at the same time, add the biggest motor surge (well pump, sump pump, AC), and let our sizing calculator do the sums.

How it reaches the house

Ask an electrician to quote an inlet box plus a transfer switch or an interlock before you buy, so the total is no surprise. Our interlock vs transfer switch guide compares the two.

Where it will run

Outside only, about 20 ft from doors, windows and vents, exhaust pointing away (the CO sensor is a backup, not a permission). Pick the spot now, before the storm. Our CO safety and placement guide has the details.

Fuel for three days

Gasoline goes stale in a few months without stabiliser; propane keeps. Check the propane rating in the manual if propane is your plan. Our fuel storage guide covers storage.

How it compares

How the GENMAX 17,000W Tri-Fuel Inverter stacks up against the closest alternative, the GENMAX 12,500W Tri-Fuel Inverter.

Criterion	GENMAX 17,000W Tri-Fuel Inverter	GENMAX 12,500W Tri-Fuel Inverter
Our rating	7.7/10	7.7/10
Running watts	13,500 W	10,500 W
Peak watts	17,000 W	Not stated
Runtime	Not stated	10.4 h

Both score 7.7/10. The GENMAX 12,500W Tri-Fuel Inverter adds a longer stated runtime (10.4 h), while the GENMAX 17,000W Tri-Fuel Inverter brings more running watts (13,500 W) and a higher peak (17,000 W).

Compare side by side ↗See the GENMAX 12,500W Tri-Fuel Inverter review →

The score in detail

How we rated it

Our score: 7.7/10

Key specifications

9 / 10

Build, warranty & certifications

7 / 10

Listing documentation

8 / 10

Fit & compatibility

8 / 10

This product has no captured buyer-review record yet, so its rating comes from the documented listing alone: four criteria scored out of 10 (key specifications; build, warranty and certifications; listing documentation; fit and compatibility), placed on a 4.5–8.5 scale. Read the full methodology.

Read the methodology →

Frequently asked questions

Is the GENMAX 17,000W Tri-Fuel Inverter any good?

We rate it 7.7/10 (very good). The rating comes from its documented listing alone, as no customer-review record is captured yet.

How many watts does the GENMAX 17,000W Tri-Fuel Inverter deliver?

The listing or manual states 13,500 W running and 17,000 W peak, usually for gasoline. Size your load list against the running watts and keep the peak for motor starts; propane and natural gas ratings are lower. These are the seller's figures, not our measurements (our sizing calculator turns your loads into a running and peak pair).

Which fuels does the GENMAX 17,000W Tri-Fuel Inverter run on?

The listing names gasoline, propane and natural gas. Output differs by fuel, so check the per-fuel running watts in the manual and whether the hoses you need come in the box. Run it outdoors only, away from doors, windows and vents.

What do you get with the GENMAX 17,000W Tri-Fuel Inverter?

Its listing states 13,500 running watts (17,000 at start-up), gasoline, propane and natural gas on one panel, clean inverter power, a 50 amp outlet for an inlet box or an RV, a built-in CO sensor and push-button electric start. These are the seller's figures, not our measurements: how loud it is in your driveway and how it handles your well pump's surge can't be read from a listing.

What should I check before ordering the GENMAX 17,000W Tri-Fuel Inverter?

Your load list: 13,500 running watts and 17,000 at start-up, per the listing. Write down what has to run at the same time, add the biggest motor surge (well pump, sump pump, AC), and let our sizing calculator do the sums. How it reaches the house: ask an electrician to quote an inlet box plus a transfer switch or an interlock before you buy, so the total is no surprise. Our interlock vs transfer switch guide compares the two. Where it will run: outside only, about 20 ft from doors, windows and vents, exhaust pointing away (the CO sensor is a backup, not a permission). Pick the spot now, before the storm. Our CO safety and placement guide has the details. Fuel for three days: gasoline goes stale in a few months without stabiliser; propane keeps. Check the propane rating in the manual if propane is your plan. Our fuel storage guide covers storage.

Where can I buy the GENMAX 17,000W Tri-Fuel Inverter?

We link to the exact listing on Amazon, where today's price, stock and seller apply. It is an affiliate link, and it has no effect on the rating.

Have you used the GENMAX 17,000W Tri-Fuel Inverter yourselves?

No, we haven't used it ourselves. Everything on this page comes from its listing, read line by line and weighed with our published formula, plus our editors' read of how it compares with its rivals.

Inverter generators ↗All GENMAX products Comparison tool All product reviews