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Firman P03501 Spec Review

Picture 1 of the Firman P03501
Picture 2 of the Firman P03501
Picture 3 of the Firman P03501
Picture 4 of the Firman P03501

The Firman P03501 is an open frame portable generator with a rated wattage of 3550 W and a starting wattage of 4450 W.

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Description

The P03501 is an open frame portable generator with a bonus cover and wheel kit. With an ergonomic handle and never-flat wheels, this generator is easy to transport for those weekend camping getaways or portable backup power. It features 4450 starting watts and 3550 running watts, with a reliable recoil start system. (source: Firman)

Zoom on the Firman P03501

In summary, the Firman P03501 is a portable generator especially useful for:

  • RV travellers looking for even more independence
  • Homeowners who want to be sure of their ability to power their fridges, cooking tools, heating and lighting equipment during power failures

In the following paragraphs, we shall explore the power characteristics, available outlets, portability and any additional features of the device, along with its emission compliance information.

Power & Run Time

The Firman P03501 in use

The Firman P03501

The Firman P03501's build contains a gasoline-fueled 208 cc Firman Max-Pro Series OHV 4-stroke engine. With a 120V output, it gives a running wattage of 3550W and also a peak wattage of 4450W.

Enjoying a noise rating of 68 dBA (less noisy than an office), this generator gets running thanks to a conventional pull-start mechanism.

With a full tank, the P03501 can operate for around 14 hours at 50% load (fuel consumption around 0.36 GPH), thanks to its fuel capacity of 5 gallons.

The P03501 is unsuitable for the powering of sensitive electronic devices due to its relatively high THD (<25%).

Outlets

The control panel includes the following 4 AC outlets:

Duplex 120V 20A (5-20R)
120V 30A (L5-30R) receptacle
120V 30A (TT-30R) receptacle

This Firman generator is RV Ready, thanks to its TT-30R receptacle (TT stands for 'Travel Trailer').

Portability

With its dimensions of L24.8 x W21.7 x H21.3 in, the conventional, open frame design of the Firman P03501 offers stability and allows the generator to be raised above ground level. The featured design is ideal for the outdoors and all tough environments.

Since the generator weighs 108.5 lbs, it will be incredibly difficult to manually lift it and transport it, even though it is technically considered to 'be portable' (in the sense that it is movable). Never less, it can still be moved quite conveniently with the help of a wheel kit (⌀8") and a folding handle, once it is placed on the ground.

Features

Panel of the Firman P03501

The P03501's control panel

The P03501's control center features a convenient meter, which displays voltage, frequency and lifetime hours to aid you with the monitoring of its status and activity.

In addition to this info, a light indicator serves to show you when its oil levels are insufficient.

The generator allows for a quick, easy and convenient assessment of its gas level, as it is equipped with a built-in fuel gauge.

Security-wise, this product benefits from an automatic low oil shut-off and an overload protection (circuit breaker), which gives you a complete peace of mind when using it.

Apart from the typical documentation and a user manual, which lets you start it right away, the Firman P03501 also is packed along with the following accessories: funnel, tool kit, cover and oil.

Emissions

The Firman P03501 is EPA approved, but NOT CARB-compliant. Thus, it cannot be purchased or sold in California.

Moreover, it features a spark arrestor, making it usable in forested areas.

Product Videos

Video of the Firman P03501

Video of the Firman P03501

The Firman P03501 versus other generators

The following charts are provided to give you an idea of how some of the key specs of the Firman P03501 compare to generators of similar power (between 3500 and 4500 W).

  • At a weight of 108.5 pounds, the Firman P03501 places in the expected weight range of the generators in the 3500-4500 rated wattage range. If weight matters to you, one of the champions in this power range is the WEN GN400i with only 66.1 pounds.
  • As this generator can emit noise as low as 68 dBA, it finds itself in the average expected noise for this kind of power. For those who are looking for a less noisy device, we suggest the Westinghouse iGen4500. With just 52 dBA, it is one of the most quiet devices in this power range.
  • As the P03501 features an autonomy of around 14 hours at 50% load, it has a higher run time than an average generator of its power range. If autonomy is your priority, one of the devices of a similar power output with the highest run time is the Honda EB4000, reaching around 16 hours.
  • Autonomy holds its importance, however, it is largely dependent on the generator’s fuel capacity and so, it is nonsensible to discuss it without mentioning fuel efficiency as well. Standing at an estimated 0.36 GPH (gallon per hour) at a 50% load, this generator is somewhat average in this area compared to other devices, within the aforementioned wattage range. If you wish to further improve in the area of fuel efficiency, the Westinghouse iGen4200, which boasts with a gas consumption of only 0.17 GPH, may be the right generator for you.
According to our stats, the following comparison is pretty popular: Firman P03501 vs Firman P03602.

Price comparison

As you can see from this dynamic chart, when compared to other 3500-4500W generators, the Firman P03501 is on the cheap side of the price range.

It can therefore be a really good buy if you're looking to acquire a budget generator.

The bottom line

STRENGTHS:
  • Inexpensive
  • Several accessories included
  • RV Ready
  • High run time
AVERAGE SPECS:
  • Decent weight (108.5 lbs)
  • Acceptable noise (68 dBA)
  • Decent fuel efficiency
WEAKNESSES:
  • No electric start
  • Not CARB-compliant

Do you own the Firman P03501 and agree (or disagree) with these strengths and weaknesses?

Let us know and write your own review.

Features and Specifications

General

InverterNo
PortableYes
Parallel capableNo
RV readyYes
FuelGasoline
Engine208 cc Firman Max-Pro Series OHV 4-stroke
Starting systemRecoil

Power

VoltageAC: 120V 60 Hz
Running watts3550 W
Starting watts4450 W
Running amps29.6 amps
Peaks amps37.1 amps
Run time @50% load14 h
Run time @25% loadN/A

Features

GFCI outletsNo
Covered outletsYes
Automatic Voltage RegulationYes
AC outlets1x Duplex 120V 20A (5-20R)
1x 120V 30A (L5-30R)
1x 120V 30A (TT-30R)
DC outletsNo
Data centerVFT
IndicatorsLow oil
Fuel tankSteel, 5 gal
Fuel gaugeYes

Misc

Weight108.5 lbs
Dimensions (L x W x H)24.8 x 21.7 x 21.3 in
Noise (lower limit)68 dBA
THD< 25%
EmissionsEPA
SecurityLow oil and overload protection
Spark arrestorYes
NeutralBonded to frame
Accessories includedOil, funnel, tool kit and cover
Warranty3 years

Unlike many websites, we did our best to research each of the specs above. That being said, we are not immune to making the occasional mistake or omission. Should you notice any missing or incorrect values, don't hesitate to suggest improvements so we can address the issue.

About FIRMAN Power Equipment

Founded in 1999, Firman Power Equipment is a company with a short, but established history in the power equipment industry. Based in Arizona, the company offers an immense range of products, including power tools, automotive equipment, storage utilities, work wear, but most importantly, a wide selection of generators of all sizes, designs and outputs. Interestingly, Firman is a wholly owned subsidiary of the China National Machinery Industry Corporation - a somewhat well renowned company in China and acts as a de facto distributor of their products in the US.

Warranty Information

The Firman P03501 is covered under a warranty for up to 3 years. This warranty may be limited and may not cover all parts of the generator.
For more information about the warranty of Firman generators, please consult Firman's warranty policies. Alternatively, you can also contact their Customer Support: 1-844-FIRMAN1 (844-347-6261).

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