7 Best Firman Generators – Reviews and Buying Guide

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Last updatedLast updated: September 19, 2021
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Are you looking for the perfect generator that will solve all your problems? Well, the Firman generators are what you have been looking for. They are designed to provide you with incredible power, larger fuel tanks, and longer running times. Moreover, Firman is known for its customer support. You will never be kept waiting when you have a doubt.

According to Firman, their generators have been specially designed to meet customer requirements. They are meant to provide industry-leading power output so that you never have to worry. With bigger tanks they have, you will be able to keep your generator running longer. Moreover, the Firman generators come with a 3-year warranty, which means that you can keep them working for a long time.

We considered certain parameters and features when evaluating the generators chosen, including generator type, fuel they run on, power output, as well as tank capacity and runtime. During our further research, we pored over customer and expert reviews to understand how each generator works. We have compared the product specifications of all the models to determine which generator would serve you the best. Take a look at our table, detailed reviews of each product, and our buying guide if you are confused as to which Firman generator you should buy.

Top 7 Firman Generators review 2021


Firman P03603Editor’s Choice

  • Generator type: conventional
  • Peak/rated watts: 4550/3550
  • Engine: Max Pro Series 208cc Firman Engine
  • Fuel tank: 5 gal.
  • Run time: 14 hours (50% load)
  • Outlets:(1) TT30R (RV Ready), 1 L530R, (2) 120V Standard (5-20 Duplex)
  • Start type: recoil, electric, remote
  • Sound rating: 68 dB

If you are looking for a generator that will last you for a significant period of time, then you can choose this model. The design is sturdy, and it will last you for years. You can rely on it to get you through all emergencies. The Firman P03603 generator will give you 4550 starting and 3650 running watts, which would be enough for most household purposes.

Firman has integrated its coveted Max Pro Series 208cc engine in this generator. You’ll find that the model doesn’t tend to heat up even when you are using it a lot. The best part is that there is no dip in the performance even after you’ve used it for a while. You will also love the Our Whisper Series muffler which allows the P03603 to be less noisy when running.

If you are in the hunt for a generator that has a massive fuel capacity, then the 5 gallons of this model is a feature you should admire. And the best part, the P03603 comes with a remote start key that will allow you to operate the generator even from a distance.

What are our favorite features?

  • 5-gallon tank runs for 14 hours
  • Has a multi-feature control panel with covered outlets
  • Equipped with 8” never-flat wheels
  • Three ways to start the generator
  • 4-in-1 Data Minder that measures Volts, Hertz, Hours
  • Comes with a Low Oil Indicator
  • 3-year warranty
  • Comes with engine oil, funnel and FIRMAN assembly tool kit

What could be better?

  • Automatic choke operates only with the remote
  • Display is rather dim

Firman H05751Most Durable

  • Generator type: conventional
  • Peak/rated watts: 7125/5700 (gas), 7125/5700 (LPG)
  • Engine: Max Pro Series 439cc Firman Engine
  • Fuel tank: 8 gal.
  • Run time: 13 hours (50% load)
  • Outlets:1 L14-30R Twistlock 30A-120/240VAC, 1 L5-30R 30A-120VAC, 2 5-20R 120V 20A Duplex GFCI Type
  • Start type: recoil, electric
  • Sound rating: 74 dB

You simply cannot go wrong with the FIRMAN H05751 generator which will fulfill all your requirements of a generator. Featuring 7,100 starting and 5,700 running watts, this model has been designed to crush the competition. The Max Pro Series 439cc FIRMAN engine provides a constant power supply to the engine. This makes sure that the model never breaks down. It always remains cool, and there is no overheating.

One of the best things about Firman generators is that they come with mufflers which help to reduce the sound made when running. This model is no exception, and you can expect to be at peace even when using the generator. The whopping 8-gallon fuel capacity is impressive because it allows the generator to run for 13 hours without any trouble. You can simply push a button in order to get the generator going.

Since this model belongs to the Firman Hybrid Series Generators, it can run on both gas and propane. The H03652 has an extended propane hose so that it is easy for you to manage.

Why is it special?

  • High power output
  • 8-gallon tank keeps generator running for 13 hours
  • RV-ready multi-feature control panel
  • High leverage U-shape folding handle
  • 120/240V switch
  • Equal power output on gas and propane
  • Comes with a 5.5-foot propane hose
  • Equipped with 10” Heavy Duty Never-Flat wheels
  • Durable construction
  • Provides excellent run time

What are the flaws?

  • Panel display is not intuitively obvious when in propane mode
  • Propane tends to rush out the hose when it is disconnected from the generator

Firman P08003Easiest to Start

  • Generator type: conventional
  • Peak/rated watts: 10000/8000
  • Engine: Max Pro Series 439cc Firman Engine
  • Fuel tank: 8 gal.
  • Run time: 12 hours (50% load)
  • Outlets:(1) 14-50R 120V/240V – 50A, (1) TT-30R (RV Ready) 120V – 30A, (1) L14-30R 120V/240V – 30A Twist-Lock, (1) L5-30R 120V – 30A, (2) 5-20R Duplex GFCI 120V – 20A
  • Start type: recoil, electric, remote
  • Sound rating: 74 dB

Our last recommendation is definitely not the least. If you want a reliable generator that will not fall apart, then the Firman P08003 is a model that you should consider. Not only does it have the coveted remote start option that will allow you to use it from anywhere, but it also comes with the Firman OHV engine that is known to provide a longer life to generators. This model guarantees high-level performance but requires low maintenance.

The design of this generator is rather sturdy, and it is built to last. In fact, the engine comes with a cast iron sleeve so that it can remain functional for a longer period of time. The automatic low oil shutdown protection ensures that there are no accidents. You will also appreciate the multi-featured control panel, which will allow you to make any adjustments you need. The best part is that it has a Firman custom designed outlet cover to give protection against dirt, and debris.

The P08003 comes with a quiet muffler so that you do not have to tolerate a lot of noise when using the generator. The 8-gallon fuel capacity will last you a while.

Why is it special?

  • Features 10,000 starting watts and 8,000 running watts
  • 8-gallon fuel tank provides 12 hour run time
  • Comes with a 4-in-1 Data Minder
  • Low oil indicator ensures that you always know when to refill the generator
  • Provides power of 120/240V
  • Comes with plenty of power outlets
  • Has provisions for a remote start

What are the flaws?

  • Heavy, which makes it difficult to carry

Firman W01781Most Portable

  • Generator type: inverter
  • Peak/rated watts: 2100/1700
  • Engine: Max Pro Series 80cc FIRMAN Engine
  • Fuel tank: 0.9 gal.
  • Run time: 9 hours (25% load)
  • Outlets:(2) 120V Standard (5-20 Duplex), (1) 12V, (1) USB (5V, 2.1 amps)
  • Start type: recoil
  • Sound rating: 59 dB

You can rely on Firman to provide you with high-quality generators that will pass the test of time. This model is lightweight, which makes it portable. You can carry it from one place to another easily, which is a big advantage when you are trying to cope with a power cut-off. Weighing less than 52 pounds, the Firman W01781 Inverter provides 2100 starting watts as well as 1700 running watts. It comes with Firman’s Max Pro Series 80cc engine which helps to keep the generator cool even when it is running at full capacity. You can rely on the efficiency of this generator because of the Phoenix Fat Head Block. If you are looking for a generator that will not let you down under any circumstance, then this is it.

If you do not like your generator making a lot of noise, then you will appreciate the Whisper Series muffler in this model which keeps it from creating any noise above 54 decibels. Moreover, the 0.9-gallon fuel capacity will give you at least 12 hours of run time. What else could you need? Of course, the Firman First pull also deserves compliments because it is a very reliable recoil system.

The compact design of the model makes it durable, and you will find that the integrated ergonomic handle makes it easy to use.

What are its best features?

  • Easy to start
  • Lightweight
  • Spark arrester approved by the USDA Forest Service
  • Eco-mode
  • Good value

What could be improved?

  • Not as powerful as expected

Firman W03083Best Sound Muffling

  • Generator type: inverter
  • Peak/rated watts: 3300/3000
  • Engine: Max Pro Series 171cc Firman Engine
  • Fuel tank: 1.8 gal.
  • Run time: 9 hours (25% load)
  • Outlets:(1) TT-30R 30A-120VAC, (1) USB 5VDV, (1) 12VDV 8.3A, (1) 5-20R Duplex 20A-120VAC
  • Start type: recoil, electric, remote
  • Sound rating: 58 dB

With Firman equipment, you only get the most high-quality products on the market. You will never have a thing to worry about when you invest in a Firman generator because the company goes the extra mile to ensure that you face no problems. The W03083 comes with a Remote Start Key Fob, which will allow you to operate the model from a distance.

The W03083 Inverter generator will give you 3300 starting watts and 3000 running watts. This will ensure that you face no shortage when you are stuck in an emergency. The power in the generator comes from the Max Pro Series 171cc Firman engine. Not only does the engine keep the generator cool, but the addition of the Phoenix Fat Head Block ensures that the generator does not lose its efficiency at any point. The Whisper Series muffler makes sure that the generator does not make a lot of noise when running. If you like a serene environment, then you will appreciate this feature.

The massive 1.8-gallon fuel capacity of the generator will keep it running for at least 9 hours. In order to get the generator working, all you have to do is press a button on the remote start key fob. The Firman 0HV engine (Max-Pro Series) gives you the perfect harmony of durability and performance. You can also use the Fuel Economy Mode to cut down on fuel consumption.

What makes it stand out?

  • Remote start
  • Comes with an economy mode
  • Multi-featured control panel with outlet cover
  • Fuel-efficient
  • Good value for money

Which disadvantages must you keep in mind?

  • Difficult to start when it is cold
  • Generator might be louder than advertised if the control panel has a loose wire connector
RELATED: 10 Best Inverter Generators to Power Anything from Tools to Sensitive Electronics

Firman H03652Budget Pick

  • Generator type: conventional
  • Peak/rated watts: 4550/3650 (gas), 4100/3300 (LPG)
  • Engine: Max Pro Series 208cc Firman Engine
  • Fuel tank: 5 gal.
  • Run time: 14 hours (50% load on gas), 10.5 hours (50% load on 20lb propane tank)
  • Outlets:(1) TT-30R (RV Ready) 120V – 30A, (2) 5-20R Duplex 120V – 20A, (1) L5-30R 120V – 30A
  • Start type: recoil
  • Sound rating: 67 dB

FIRMAN H03652 Duel Fuel generator will give you everything you want in one model. Featuring 4550 starting watts and 3650 running watts, this generator is powerful, and you will never feel deficient. The power is supplied to the generator by the Max Pro Series 208cc FIRMAN engine. In case you do not like your generators to make noise, then you will find the Whisper Series muffler helpful. However, you should keep in mind that while this generator does not create a lot of sound, it is also not the quietest model on the market.

If you don’t want to get into the hassle of refueling your generator every other day, then you will love the massive fuel tank which comes with this model. It provides extended run-time, and has a built-in tank gauge that makes the process easier for you.

This generator comes with a rubberized Thresher handle that will make it easy for you to start the generator even when you are wearing heavy gloves. This model is a part of their Hybrid Series Generators and can run on gasoline or propane. When you are traveling, you will have the flexibility of choosing the fuel that is available to you.

Why did it make our list?

  • Runs on gasoline or propane
  • Comes with a 5-foot propane hose
  • Equipped with 8” heavy duty Never-Flat wheels
  • 3-in-1 data minder which can measure volts, hertz, and hours
  • Fuel-efficient
  • Runs for a fairly long time

What is not ideal about it?

  • Can be difficult to get the generator going
  • Noisy
RELATED: 10 Best Dual-Fuel Generators to Easily Switch Between Gas and Propane

Firman H08051Best Runtime on Gas

  • Generator type: conventional
  • Peak/rated watts: 10000/8000 (gas), 9059/7250 (LPG)
  • Engine: Max Pro Series 439cc Firman Engine
  • Fuel tank: 8 gal.
  • Run time: 12 hours (50% load)
  • Outlets:(1) 5-20R Duplex 120V – 20A GFCI, (1) L5-30R 120V – 30A, (1) L14-30R 120V/240V Twist-Lock, (1) 14-50R Dual Voltage 120V/240V – 50A
  • Start type: recoil, electric
  • Sound rating: 74 dB

You should not set your expectations low when it comes to Firman generators, because they will always exceed them no matter what. The H08051 has been designed to impress, and you will surely fall in love with it. It gives users the versatility of using two fuels which means that you can take your pick when you are traveling. You will not have to spend time worrying about how you will make the generator work in case the fuel runs out.

This model will give you an extended run time of at least 14 hours. As a part of the Hybrid series collection, the H08051 is very well-designed. The 8-gallon fuel tank comes with an integrated fuel gauge. The extended propane hose (5′) makes it convenient for you to use the generator when you are running it off a larger propane tank. Since the H08051 runs on both gas and liquid propane, it is not likely that you will ever be in a situation where the generator completely fails you.

What do we love it for?

  • Provides dual fuel versatility
  • Simple design that can be understood both by beginners and professionals
  • Comes with an ergonomically designed padded handle which you can use easily
  • Provides power of 120/240V
  • Comes with 5.5-foot propane hose
  • Runs decently on both gas and propane
  • Equipped with a 3-in-1 Data Minder that can measure volts, hertz, and even hours
  • Low Oil Indicator
  • Ьany outlets

What were we disappointed with?

  • Runs only for 6 hours on propane
  • Rather heavy which makes it not portable

Things to Consider

We know that it can be overwhelming to choose one generator when there are so many options available. We assure you that all the suggested Firman models have been individually vetted because we want you to be happy with your purchase. However, we acknowledge that you might need some help narrowing down the choices. You must remember that you have to take into consideration the purpose for which you’ll be using the generator. Once you’ve answered that question, half your job is done. Then, you just have to go through our buying guide, which will help you to evaluate all your options, so you can make an informed choice.

Firman generators: What is special about them?

7 Best Firman Generators – Reviews and Buying GuideThe Firman generators have exclusive proprietary technologies that go into their making, which set them apart from the other models on the market. You will be surprised at how many features, including the remote start, like some other best remote start generators feature, you get with these generators without having to empty your bank account. The company focuses on making generators so powerful that they can satisfy the customers. The Firman generators also come with bigger fuel tanks which allow them to run for longer stretches of time. You will no longer have to worry about re-fuelling every two hours. Firman is confident in its products, which is why all their generators come with warranty.

Generator type: inverter or conventional?

If you are confused as to whether you should go for an inverter generator or a conventional generator, then you should make your final choice based on your budget constraints. However, you should remember that inverter generators tend to be smaller and lighter as compared to traditional models. Hence, inverters tend to be more portable than standard generators.

Moreover, inverters are quieter and make less sound as compared to traditional generators. They cut down on power fluctuations so that you get a steady supply of power at all times.

How much power do you need?

If you want the perfect generator, then you must first understand how much power output you will be needing. As long as a generator is able to provide you with as much power as you need for your job, it is a viable option. In order to figure out the power output you will need, you have to sum up the power in watts that is required by all the appliances you will be running at the same time. You can use the voltage and the amps to calculate the amount of power they will need. Having a higher margin is a better idea than having insufficient output.

How long do you need to run your generator?

7 Best Firman Generators – Reviews and Buying GuideThe generator you choose will also depend on how long you are planning to use it for. If you want a model that will run for a long stretch of time without having to get refilled, then you need to choose one that has a high fuel tank capacity. The run-time of a generator is directly proportional to its fuel tank capacity. It can be a hassle if your generator stops working in the middle of work, so you should invest in a model that can run for at least 8 hours at a time. This will give you enough time to use the generator and then refuel it.


In case you want to use multiple devices with the help of the generator, it is ideal to have multiple outlets. This will help in spreading the load and allow you to make the most of the available wattage. The feature is helpful when you are traveling or camping, and you need to power everything at once.

Safety features

Nothing is more important than your well-being and safety. You should feel safe when using the generator that you have bought with your hard-earned money. Make sure that the model you buy is able to provide you with clean energy. This will protect you from voltage surges and give you a steady flow of current.

You should also look for a low-oil shut off safety feature in your generator. It means that the generator will stop working when the level of lubricating oil in the machine drops too low. This will protect the engine from excessive wear and tear. Some generators come with an automatic shutoff feature which helps in overload prevention. If your generator is unable to support all the machines that you have plugged in, then it will cut off the power supply in order to prevent mishaps.

Tips and tricks

The following tips will allow you to stay on top of the generator game.

    • You should not operate your generator indoors if it emits carbon monoxide. This can lead to carbon monoxide poisoning
    • Ideally, your portable generator should always be dry. Exposure to water can cause a complete breakdown.
    • Take some effort to understand the importance of the two capacity ratings. Do not confuse the rated/continuous rating with the starting/maximum rating.
    • You should never try to refuel your generator while it is still hot. Once it cools down, refuel it slowly so that there is no spillage.
    • Never back-feed a portable generator.
    • Make sure that you check the filter once a week. You should change the oil every 100 hours to ensure that the machine runs properly.
    • Do not be scared to be stock up on high-quality fuel because you never know when you might need it.
    • Firman generator prices

      Firman generators are as good as high-tiered generators, but they are priced reasonably. You get access to some excellent features for a small investment. Firman believes in letting their generators speak for themselves and do not spend a ton on marketing. This allows them to keep their prices low.

      For example, you can get an inverter generator for around $500 – check out the W01781 model. A mid-range conventional generator, like our top pick P03603, will cost you the roughly same. A larger and more powerful dual-fuel H08051 model is a bit pricier at almost $900, which is, however,


When you are investing in a piece of machinery like a generator, you would expect it to have a decent warranty period so that the company can step up and help you in case something goes wrong. Firman, as a company, stands up for the quality of its products and gives you a warranty on the generators that it manufactures. If you buy a Firman generator, you will get 3 years of limited warranty if you use it for residential purposes. On the other hand, if you are planning to use the Firman generator for commercial reasons, then the warranty will last for 90 days.

Firman inverter generators are definitely quieter than conventional generators. This is because the Firman inverter generators are designed in such a way that they can produce AC current without making noise. The design of the machine contributes significantly to the reduction in the sound. The Firman inverter generator ensures minimal movement inside the model, and it runs at a constant speed. The company makes mechanical provisions to minimize the noise.

Firman makes sure that all their generators come with mufflers to ensure that they do not produce too much sound when operating. The muffler blocks the sounds so that the user cannot hear it.

It is important that you use a generator that is safe and certified. If you want an eco-friendly generator that does not degrade the environment, then you should go for a model that has been approved by the CARB or the California Air Resources Board. CARB is all about environmental protection and targets air pollution as one of the biggest enemies of the modern world. You should get a generator that abides by CARB’s rules and regulations. All the Firman generators mentioned on our list are certified by CARB, which means that they’ve been deemed safe to use.

Firman generators are manufactured in China. The headquarters of Firman is located in Nanjing China along Changjiang Road. The company falls under the umbrella brand known as the SUMEC Group. As it happens, the SUMEC Group is among the most valued members of the SINOMACH. You can rely on Firman generators to be reliable and powerful. They give you a stable performance at all times. Firman has also introduced a manufacturing spot in North America recently. The company is registered in more than 90 countries. Their generators are used in medical care, industries, residences, construction, etc. Firman has also built branches of the company abroad.

Our Verdict

After going through our reviews and referencing our buying guide, you must have narrowed down a list of Firman generators that you are willing to invest in. While we love all the models that we have mentioned above, we admit that we do have certain favorites.

The Firman P03603 is a conventional generator that comes with 14 hours of run time. There are multiple ways in which you can start the machine and get it to work. On the other hand, the Firman P03603 comes with a multi-featured control panel which allows you to adjust the generator any way you like. The 8” never-flat wheels also make it portable. It also comes with a kit!

The Firman H05751 is our second favorite generator. There is no doubt that this model can provide a tremendous boost of power. The multi-featured control panel and the 5.5-foot propane hose make it easy to use.

Our third pick, the Firman P08003 has 10,000 starting watts and 8,000 running watts. The 8-gallon fuel tank will allow your generator to run for a half a day. You will also appreciate the remote start.

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