The Longest Running Generator For 2024

Scott Nelson By, Scott Nelson
Updated
Longest Running Generator
Longest Running Generator

Our Top Picks

1. Best Overall: Westinghouse Outdoor Power Equipment Portable Generator

This generator features a standard household receptacle, automatic low oil shutdown and digital hour meter to give you real time updates on the voltage output, frequency and lifetime hours. Plus, it's easy to assemble so you can get started right away. Get ready for reliable power with Westinghouse Outdoor Power Equipment Portable Generator. Read Review

2. Best Bang For The Buck: DuroMax XP12000EH Generator

With a powerful DuroMax Engine, dual fuel technology, and detailed safety instructions, this generator allows you to enjoy the freedom and flexibility of fuel choice. Plus, with an automatic shut-off feature, it ensures your generator stays safe and secure even during unexpected power outages. Maneuverability is also no issue with its lightweight design and ergonomic handle. Read Review

3. Best Reliable: Westinghouse Outdoor Power Equipment Portable Generator

This generator comes plug-and-play ready and features an automatic low oil shutdown and digital hour meter for your convenience. Easy to assemble and highly portable, this generator is the perfect choice for your outdoor adventures! Maneuverability and superior portability make it the perfect choice for any outdoor event. Read Review

4. Best Powerful: WEN DF475T Portable Generator

With a simple turn of the selection dial, you can easily adjust voltage to fit your needs. It's great for transfer switches and emergency backup, plus it features electric start powers for easy assembly. Get ready for any situation with the WEN DF475T Portable Generator! Read Review

5. Best Durable: Pulsar G12KBN Heavy Duty Portable Generator

Get the reliable power you need with the new Pulsar G12KBN Heavy Duty Portable Generator. This dual fuel generator is great for emergency situations or natural disasters and is more readily available and easy to store. With convenient drop-down handles, it's also easy to assemble and transport, so you're always ready for whatever comes your way. Read Review

Having reliable electricity is essential in our day-to-day lives, which is why it can be beneficial to have a generator on hand. The longest running generator is the diesel generator, and it has a number of advantages that make it an ideal choice for both residential and commercial applications. Diesel generators are able to run for extended periods of time, so they are great for providing consistent power in the event of a power outage.

They are also more efficient than other types of generators, which means they use less fuel and are more cost-effective. In addition, diesel generators are durable and reliable, so they can last for many years with proper maintenance. With all the benefits of a diesel generator, it's no wonder why it is the longest running generator on the market.

We think the product that comes highly recommended for the longest running generator is Westinghouse Outdoor Power Equipment Portable Generator. Because of featuring a standard household receptacle, automatic low oil shutdown and digital hour meter, this generator gives you real time updates on the voltage output, frequency and lifetime hours. Consider DuroMax XP12000EH Generator as an alternative if you're still undecided. Other suggestions on this list are definitely worth considering, and we've put up a useful shopping guide to help you decide!

Our Top Picks

TOP Choice #1 Westinghouse Outdoor Power Equipment Portable Generator
Our Score:
9.9
Westinghouse Outdoor Power Equipment

All Westinghouse Portable Generators are Functionally Tested in the Factory and May Contain Minimum Residual Oil and/or Fuel Odor; EPA and CARB Compliant; Backed by 3-Year Limited Service, Labor, and Parts Coverage with Nationwide Customer Service Network

Features Two GFCI 120V 5–20R Standard Household Receptacle, One Transfer Switch Ready 120V L14-30R, and One RV Ready 120/240V 14–50R; All Outlets Have Rubber Covers for Added Safety

9500 Running Watts and 12500 Peak Watts (Gasoline); 8500 Running Watts, 11200 Peak Watts (Propane); Remote Start With Included Key Fob, Electric and Recoil Start; Up to 12 Hours of Run Time on a 6. 6 Gallon Fuel Tank With Fuel Gauge

Plug-and-Play: Comes With a Remote Start Key Fob, 12V Battery Charger, Oil, an Oil Funnel, a Tool Kit, and a User’s Manual to Get You Started Right Out of the Box (Minimal Assembly Required)

Powered by a Heavy Duty 457cc Westinghouse 4-Stroke OHV Engine Featuring a Long-Lasting Cast Iron Sleeve With Automatic Low Oil Shutdown and Digital Hour Meter. VFT display gives you real time updates with the voltage output, frequency, and lifetime hours

TOP Choice #2 DuroMax XP12000EH Generator
Our Score:
9.8
DuroMax

Powering everyone anywhere: like all DuroMax generators, the XP12000EH is EPA and CARB approved For use in all 50 States.

Please read the detailed safety instructions in the manual before operating.

Engine Type: 4-Stroke

Powerful DuroMax Engine: the XP12000EH is powered by a DuroMax, 457cc OHV engine.

With Gasoline : Peak Wattage - 12,000., Running Wattage - 9,500., Running Amperage at 120V - 79.17., Running Amperage at 240V - 39.58., Runtime at 25% Load - 19., Runtime at 50% Load - 8

With Propane : Peak Wattage - 11,400., Running Wattage - 9,025., Running Amperage at 120V - 75.21., Running Amperage at 240V - 37.6., Runtime at 25% Load - 14., Runtime at 50% Load - 7

Plenty of power: with 12,000 starting watts and 9, 500 running watts, This unit can handle heavy loads from lights and a refrigerator to a home air conditioner and high amperage power tools.

Dual fuel technology: the ability to run on propane or gasoline allows the freedom and flexibility of fuel choice. Protects your investment by automatically shutting the generator off when it senses that the oil is low

Maximum power: with DuroMax MX2 technology, get the maximum power from each of the 120 volt receptacle. Choose between operating the generator at both 120 V and 240 V Simultaneously, or at 120 only with full power.

TOP Choice #3 Westinghouse Outdoor Power Equipment Portable Generator
Our Score:
9.6
Westinghouse Outdoor Power Equipment

Plug-and-Play Comes With Oil, an Oil Funnel, a Tool Kit, and a User’s Manual to Get You Started Right Out of the Box (Minimal Assembly Required)

Features Two GFCI (Ground Fault Circuit Interrupter) 5–20R 120V Household Duplex Receptacle and One Transfer Switch Ready L14-30R 120/240V Twist-Lock Receptacle; All Outlets Have Rubber Covers for Added Safety

Powered by a 420cc Westinghouse 4-Stroke OHV Engine Featuring a Long-Lasting Cast Iron Sleeve With Automatic Low Oil Shutdown and Digital Hour Meter

6000 Running Watts and 7500 Peak Watts; Electric and Recoil Start; Up to 13 Hours of Run Time on a 6. 6 Gallon Fuel Tank With Fuel Gauge

All Westinghouse Portable Generators are Functionally Tested in the Factory and May Contain Minimum Residual Oil and/or Fuel Odor; EPA and CARB Compliant; Backed By 3-Year Limited Service, Labor, and Parts Coverage and Nationwide Customer Service Network

4 WEN DF475T Portable Generator
Our Score:
9.5
WEN

Switch between gasoline (4750 surge watts, 3800 running watt) and propane (4350 surge, 3500 running) with the simple turn of the selection dial

4-gallon tank provides up to 11 hours of half load run time

Includes two 120V GFCI outlets (5-20R), a 120V/240V NEMA 30A twist lock (L14-30R), a 12V DC cigarette-lighter-style plug, a bottle of oil, a wheel and handle kit, a 47-inch LPG connection hose, and a 2-year warranty

Electric start powers the 224cc 4-stroke OHV engine with the turn of a key

Voltage easily goes from 120V to 240V, perfect for transfer switches and emergency backup

Convenient drop-down handles and 10” never-flat wheels for added mobility and easy storage

A 8 gallon fuel tank gives you up to 12 hours of continuous operation at half load when running on gasoline

Dual fuel capability allows you to choose between gasoline & LPG fuel sources; great for emergency situations or natural disaster as LPG may be more readily available and easy to store

(4) 120V 20A AC outlets, (1) 120V/240V 30A twist-lock outlet, (1) 120V/240V 50A outlet, (1) 12V DC output provide ample space for powering appliances, tools, and other devices

Includes propane hose & backed by a 1 Year limited

Complete with low oil shut-off, 3-in-1 digital meter, and automatic voltage Regulation for less worry and hassle

12, 000 peak watts/ 9, 500 Rated watts (gasoline) & 10, 800 peak watts/ 8, 550 Rated watts (LPG)

The 457cc, single cylinder, 4-stroke, air cooled, OHV engine with electric start is protected by a durable powder coated frame

212cc 4-stroke CARB-compliant OHV engine produces 4000 surge watts and 3500 rated watts

Generate clean power to safely operate sensitive electronics such as phones, tablets, televisions and computers

Dimensions: 19.8" L x 13.8" W x 18.9" H | Weight: 66.1 lb

Includes two 120V NEMA 5-20R receptacles, two 5V USB ports, one 120V RV-ready TT-30R receptacle

Parallel-ready panel allows you to connect any two WEN inverter generators for increased wattage output

This generator runs on gasoline or propane, giving you the freedom and flexibility of fuel choice

All-new control center with a digital multimeter, push-button start, and a front-facing fuel interface allowing you to change your fuel type in seconds! The digital multimeter displays voltage, frequency, total hours run, and hours until the recommended maintenance

Built using a powerful 500cc OHV DuroMax engine and features ALL COPPER WINDINGS designed to make your generator last for years

Equipped with DuroMax “CO Alert Technology” that will automatically shut down the generator if an unsafe level of carbon monoxide is detected

The fully loaded power panel includes four 120V GFCI household outlets, one 120V 30AMP outlet, one 120/240V 30AMP twist-lock outlet, and a heavy-duty 120/240V 50AMP outlet making it transfer switch ready!

Dimensions: 27.2" W x 27" D x 26.5 H | Weight: 198 lb

10000 Starting Watts. 8000 Running Watts

Electric start Model for easy operation (Battery included)

Large-capacity steel fuel tank with incorporated fuel gauge provides durability and up to an 11 hour run-time at 50% load

Featuring power Rush advanced technology – delivers over 30% more starting capacity allowing you to do more with less

Generac durable OHV engine with splash lubrication provides a long engine life

9 Powermate P0081100 PM3800 Portable Generator
Our Score:
8.8
Powermate

Powerdial Recoil Start (Off/Run/Cold Start) offers three operation settings integrated into one simple-to-use dial.

Large Capacity Steel Fuel Tank provides durability and up to a 21 hour run-time at 25% load.

Ergonomic Frame for easy portability. Low-oil Level shutdown prevents engine damage.

Powered by Generac 212cc OHV Engine provides consistent power for multiple applications.

Fuel gauge allows users to keep track of gasoline levels. Covered outlets provide protection and keep out debris.

【Power Panel】 The covered outlets in this generator include a 120/240V 30A locking outlet (L14-30R), a 120/240V 50 A locking outlet (L14-50R), a 120V 30A outlet, four 120V 20A GFCI protected household outlets (5-20R) all with AC breakers and with a dual USB adapter.

【DUAL FUEL OUTPUT】 458cc 4-stroke OHV engine produces 10000 peak watts and 9000 rated watts with 10.5 gallon fuel tank; Gas or Propane Powered ,giving you the freedom and flexibility of fuel choice. This generator is perfect for emergency home power, job site use or camping with your RV.

【 EASY TO CARRY AND USE】 Strong steel handle and 2 rolling wheels for easy travel; Electric start Enjoy on/off push,button power with electric start, battery included, plus Cold Start Technology ensures a quick start in cold weather.

【CO DETECT】Automatically turns off the generator when an unsafe level of carbon monoxide is detected.

【Extremely Fuel Efficient】Up to 14.5 hours of operation at 50% load for maximum fuel efficiency in "economy mode".

What to Look For in a longest running generator?

A range of elements, including those listed below, influence the longest running generator. The study process varies depending on the material. We'll be able to assist you and provide solutions since we're here to help you.

Please keep in mind the following points before selecting longest running generator:

Warranties

A warranty is usually included with the purchase of a generator. The warranty covers both labor and parts for most residential inverter and portable generators. For standby generators which can be larger investments, you will usually get a 3- to 52024 warranty period.
Certain warranties may also include travel expenses for technicians to visit the generator and fix it. However, this depends on which manufacturer you are using.

Wattage

A generator's wattage is the measure of its ability to provide power for whatever it plugs into. This information is crucial to understand about any generator that you are considering.
However, this number does not represent the entire picture. Wattage is made up of three parts: power needed to turn on an appliance and power required to maintain it running. It also includes power necessary to sustain a power surge, which is when regular juice returns to normal and all appliances start to work again. Many appliances use more power for startup than their run energy consumption. You could overload your generator when you turn on appliances and other devices. If the generator can't provide enough power, it could overload. You need to know how many watts your generator can generate, depending on whether it is powering just one item or the whole house.
An increase in generator costs is generally associated with a higher wattage. Most people agree that it's better to have enough power than not to be able to run your fridge or keep cool by a fan.

Automatic Start

Whole home generators can automatically start when power goes out. This allows the generator to automatically start supplying power when there is no electricity from the utility. This feature is usually only available on standby generators, and not portables. These systems can provide peace of mind and may be more expensive than the security that your generator will automatically turn on without interrupting vital systems like heating and cooling.

Fuel Source

Generators are generally powered by either gasoline, natural gas or propane.
The majority of portable generators run on gasoline and can generally keep fridges and lights running for several hours. These generators can't be relied upon for long-term power backups, such as when there is no electricity for several days.
Propane and natural gas are used more often for large home-standby generators. These fuels can be used for larger home standby generators as they are cleaner-burning and offer on-demand power.
Solar or battery-powered power sources are an alternative to traditional fuel-powered generators. These machines have different capabilities, and their run time can vary widely. However, they might be the best match for you if your power requirements are less than minimal. They are typically used for camping only, not home.

Size

Installing home generators requires space. So make sure that you consider the dimensions of all models. You can find generators in a variety of sizes, from smaller units measuring less than 3ft to more large units measuring 5ft or more. A general rule of thumb is that the generator with the highest power rating will be larger.
Be aware that the clearance between your home and generator may be determined by local codes or model specifications. A small generator may require only 18 inches of clearance.

Type

You need to decide which generator type is best for you: a portable or standby generator. This will help you decide if you just want the lights to stay on or if you need to power other electrical components such as the refrigerator, window, central air conditioner, and the fridge.

FAQs

How long can I expect my generator to last?

The length of time a generator will last depends on several factors, including the type of generator, the quality of the components, and how often it is used. Generally, a well-maintained generator can last anywhere from 5-15 years, depending on the type of generator and the quality of its components.

How often should I service my generator?

It is recommended that you have your generator serviced at least once a year by a qualified technician. This will help ensure that all the components are in good working order and that any potential problems are identified and addressed before they become more serious.

What should I do if my generator stops working?

The first thing to do is make sure the fuel tank is full and the fuel line is clear. If the fuel line is clogged, you will need to clean the fuel line or replace the fuel filter. If the fuel line is clear and the fuel tank is full, you should check the spark plugs and ignition system to make sure they are functioning properly. If the spark plugs or ignition system are not functioning properly, you will need to have them replaced by a qualified technician.

When updated data are available, our system and editor will update a list of longest running generator. Please periodically review our website for the newest data.

We can help you with more than just finding longest running generator.  Please do not hesitate to contact us when you need assistance.


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About Scott Nelson

Scott Nelson

Scott Nelson is a freelance writer who specializes in camping and wildlife topics for CampFireHQ. He has written for several outdoor magazines and websites, and he enjoys nothing more than spending a weekend in the woods with his family. Scott is an experienced camper and backpacker, and he has also spent considerable time studying the behavior of bears and other large mammals.

Read Scott's full bio