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Firman P03608 Spec Review

The Firman P03608 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 P03608 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 recoil, electric and remote start system for ease of use. (source: Firman (opens in a new tab))

Zoom on the Firman P03608

In a nutshell, the Firman P03608 is a portable generator mostly geared towards:

  • RV travellers who wish to upgrade their experience to another level
  • Occasional participants of outdoor events, competitions, concerts and festivals
  • Homeowners who want to be sure of their ability to power their fridges, cooking tools, heating and lighting equipment during power failures

In the sections ahead, the power characteristics, availability of various outlets, the portability, and any additional features of the device shall be discussed, including its emission compliance information.

Power & Run Time

The Firman P03608 in use

The Firman P03608

The Firman P03608's core is the 208 cc Firman Max-Pro Series OHV 4-stroke engine, which runs on gasoline. With an output of 120V, it provides a running wattage of 3650W and a peak wattage of 4550W.

With a noise rating of 68 dBA (less noisy than a normal conversation), the generator features a conventional pull-start mechanism, but also a convenient and easy-to-use electric starter (battery included). Moreover, to offer you even more convenience, the P03608 can also be remotely started (key fob included).

The fuel capacity of 5 gallons allows the P03608 to operate for around 14 hours at 50% load with a full tank (fuel consumption around 0.36 GPH).

The powering of sensitive electronic devices with the P03608 is not recommended due to its relatively high THD (<25%).

Outlets

The control panel features the upcoming 4 AC outlets:

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

This Firman generator is RV Ready, as it features a TT-30R receptacle (TT stands for 'Travel Trailer').

Portability

The dimensions of the Firman P03608, which are L24.8 x W21.7 x H21.3 in, and its typical, open frame design provides stability and enables the generator to be raised above ground level. The featured design is ideal for the outdoors and all tough environments.

While the generator is considered to be technically 'portable' (in the sense that you can move it), manually lifting and transporting it may be challenging, due to its high weight of 119.5 lbs. Still, once it is on the ground, its wheel kit (⌀8") and its folding handle can easily solve the issue of low mobility and allow for easy relocation of the device.

Features

Panel of the Firman P03608

The P03608's control panel

The control panel of the P03608 includes a convenient meter showing you voltage, frequency and lifetime hours, helpful for 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 includes a built-in fuel gauge, a quick, easy and convenient method of checking the device’s gas level.

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).

Apart from the typical documentation and an owner's manual (opens in a new tab), which lets you start it right away, the Firman P03608 also is packed along with the following accessories: funnel, key fob, oil and tool kit.

Emissions

The Firman P03608 is EPA-approved and CARB-compliant. It can therefore be sold and purchased in all 50 states, including California.

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

Product Videos

The Firman P03608 versus other generators

The following charts are provided to give you an idea of how some of the key specs of the Firman P03608 compare to generators of similar power (between 3500 and 4500 W).

  • As its weight is 119.5 pounds, the Firman P03608 falls in the expected weight range of the devices in the 3500-4500 rated wattage category. Regarding dry weight, one of the champions in the same power range is the WEN GN400i, with a dry weight of only 66.1 lbs.
  • As this generator can emit noise as low as 68 dBA, it finds itself in the average expected noise for this kind of power. If noise emissions are one of your priorities, you may be interested in the Cummins Onan P4500i, one of the least noisy generators similarly powerful as this one, rated for 52 dBA.
  • Since the P03608 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. Furthermore, considering the run times, one of the generators which have a roughly same power output, with the highest autonomy, is the Honda EB4000X, as it provides around 16 hours.
  • The run time is important, but also hugely depends on the capacity of the fuel tank and doesn't mean much if we don't talk about fuel consumption 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.

Price comparison

As you can see from this interactive chart, when compared to other 3500-4500W generators, the Firman P03608 is on the average side of the price range.

Therefore, this generator nicely fits in the expected budget for this kind of product.

The bottom line

STRENGTHS:
  • In the expected price range
  • Several accessories included
  • RV Ready
  • Remote start
  • High run time
AVERAGE SPECS:
  • Decent weight (119.5 lbs)
  • Acceptable noise (68 dBA)
  • Decent fuel efficiency
WEAKNESSES:

The Firman P03608 doesn't have any notably low specs.

Do you own the Firman P03608 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, Electric, Remote
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 (TT-30R)
  • 1x 120V 30A (L5-30R)
DC outletsNo
Data centerVFT
IndicatorsLow oil
Fuel tankSteel, 5 gal
Fuel gaugeYes
Misc
Weight119.5 lbs
Approx. dimensions (L x W x H)24.8 x 21.7 x 21.3 in
Noise (lower limit)68 dBA
THD< 25%
EmissionsCARB, EPA
SecurityLow oil and overload protection
Spark arrestorYes
NeutralBonded to frame
Accessories includedOil, funnel, tool kit, key fob and battery
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 P03608 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 wattage 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
Duplex 120v/20a outlets - does that mean 20a total from both or total 40a possible? (Asked September 25, 2020)

20A total from the duplex outlets

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