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Firman P03602 Spec Review

The Firman P03602 is an open frame portable generator with a rated wattage of 3650 W and a starting wattage of 4550 W.

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Description

The P03602 is a standard open frame portable generator. 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 4550 starting watts and 3650 running watts, with a reliable recoil start system. (source: Firman (opens in a new tab))

Zoom on the Firman P03602

In a nutshell, the Firman P03602 is a portable generator mostly geared towards:

  • RV travellers looking for even more independence
  • People occasionally participating in sporting competitions, open-air performances and outdoor festivals
  • Homeowners who want to be sure of their ability to power their fridges, cooking tools, heating and lighting equipment during power failures

The following sections will present you in detail its power characteristics, the different outlets it offers, its overall portability, the extra features it benefits from, and any relevant emission compliance details.

Power & Run Time

The Firman P03602 in use

The Firman P03602

The Firman P03602 houses a 208 cc Firman Max-Pro Series OHV 4-stroke engine, which provides 120V, consumes gasoline and delivers a running wattage of 3650W along with a peak wattage of 4550W.

At a noise rating of 68 dBA (less noisy than a normal conversation), the generator is started via a simple traditional pull-start mechanism.

Thanks to a fuel capacity of 5 gallons, the P03602 can operate for around 14 hours at 50% load with a full tank (fuel consumption around 0.36 GPH).

The quite high THD (<25%) of the P03602 makes it unsuitable for powering sensitive electronic devices.

Outlets

The control panel features 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, as it features a TT-30R receptacle (TT stands for 'Travel Trailer').

Portability

The Firman P03602 has a conventional, open frame design, of the following dimensions: L24.8 x W21.7 x H21.3 in, which offers support and allows it to be raised above ground level. The featured design is ideal for the outdoors and all tough environments.

Even though this device may be technically portable (as in movable), manipulation and transportation without special equipment can be a challenge, as it weighs 108.5 pounds. However, this lack of maneuverability is compensated by its wheel kit (⌀8") and its folding handle, with which you can conveniently shift it, once it's on the ground.

Features

Panel of the Firman P03602

The P03602's control panel

The P03602's status and activity may be monitored conveniently via the control panel, as it features a convenient meter showing you voltage, frequency and lifetime hours.

In addition to this info, the device’s light indicator will display if its oil levels are insufficient.

The fuel level of the generator can be determined quickly, easily, and conveniently with the help of its built-in fuel gauge.

As far as security is concerned, the generator can be used with a peace of mind, as it features an automatic low oil shut-off and an overload protection (circuit breaker).

With the basic documentation and an owner's manual (opens in a new tab), letting you start the generator quickly, the Firman P03602 also comes with several accessories, including: funnel, tool kit and oil.

Emissions

The Firman P03602 is EPA approved, but NOT CARB-compliant. Thus, it cannot be purchased or sold in California.

However, it features a spark arrestor, which makes it suitable for use in forested areas.

Product Video

The Firman P03602 versus other generators

The following charts are provided to give you an idea of how some of the key specs of the Firman P03602 compare to generators of similar power (between 3500 and 4500 W).

  • At a weight of 108.5 pounds, the Firman P03602 places in the expected weight range of the generators in the 3500-4500 rated wattage range. In terms of weight, one of the champions in their power range is the WEN GN400i, standing at just 66.1 lbs.
  • The generator can be considered average in its noise for its power category, as it is rated at 68 dBA. If noise emissions are important to you, one of the least noisy generators of this power range is the Cummins Onan P4500i with only 52 dBA.
  • Since the P03602 boasts with a run time of around 14 hours at 50% load, it can be safely judged as a device of a higher run time than most generators of a comparable output. If concerned with autonomy, one of the products of a comparable power output, which offers the highest run time, is the Honda EB4000X, boasting with 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. As this generator uses an estimated 0.36 GPH (gallon per hour) at a 50% load, it finds itself in the average gasoline consumption range of similar products. If fuel consumption is your top priority, we suggest to check out the Westinghouse iGen4200, which has a fuel consumption of only 0.17 GPH and thus, is one of the most efficient devices in our database.
According to our stats, the following comparison is pretty popular: Firman P03602 vs Firman P03501.

Price comparison

As you can see from this interactive chart, when compared to other 3500-4500W generators, the Firman P03602 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 P03602 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 watts3650 W
Starting watts4550 W
Running amps30.4 amps
Peaks amps37.9 amps
Run time @50% load14 h
Run time @25% loadN/A
Features
GFCI outletsNo
Covered outletsYes
Automatic Voltage RegulationYes
AC outlets
  • 1x 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
Approx. 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 and tool kit
Warranty3 years
SeriesPerformance

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 P03602 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 (opens in a new tab). Alternatively, you can also contact their Customer Support: 1-844-FIRMAN1 (844-347-6261).

Questions & Answers

What can it power?
Examples of items that can be simultaneously powered.
The examples below are based on a maximum load of 80% and estimated wattages. For a more accurate estimation, use our generator size calculator.
ItemRunning WattsStarting Watts
At homeRefrigerator (energy star)1921192
Hair dryer18001900
Washing machine9001650
Total2892 W3892 W
For campingRadiant heater13001300
RV refrigerator180600
RV AC (11,000 BTU)10101600
Blender400850
Total2890 W3480 W
For workTable saw18004500
Total1800 W4500 W

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