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Firman P03612 - 3650/4450W Portable Generator

The Firman P03612 is a portable open frame generator with a rated wattage of 3650 W and a starting wattage of 4450 W.

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Description

The P03612 is an open frame portable generator with 120V/240V selectable power. This generator has an ergonomic handle and never-flat wheels for easy transport during 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 P03612

In summary, the Firman P03612 is a portable generator especially useful for:

  • RV travellers wishing to enhance their freedom and nomad lifestyle
  • Occasional participants of outdoor events, competitions, concerts and festivals
  • Homeowners in need of an emergency backup power for their essentials

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 P03612 in use

The Firman P03612

The Firman P03612's core is the 208 cc Firman Max-Pro Series OHV 4-stroke engine, which runs on gasoline. With an output of 120/240V, it provides a running wattage of 3650W and a peak wattage of 4450W.

The generator features a simple traditional pull-start mechanism and also a convenient and easy-to-use electric starter (battery included). It is rated for a noise of 67 dBA (less noisy than a normal conversation). The P03612 can also be remotely started, offering further convenience (key fob included).

Thanks to a fuel capacity of 5 gallons, the P03612 can operate for around 14 hours at 50% load with a full tank (fuel consumption around 0.36 GPH).

Since the P03612 has a somewhat high THD (<25%), it is advisable to not use it for the powering of sensitive electronic devices.

Outlets

The control panel includes the following 4 AC outlets:

Duplex 120V 20A (5-20R)
120/240V 30A (L14-30R) receptacle
120V 30A (TT-30R) receptacle

This Firman generator is RV Ready, thanks to its TT-30R receptacle (TT stands for 'Travel Trailer'). In addition, as the P03612 holds a twist-lock L14-30R receptacle, it is transfer switch ready: you'll easily be able to connect it to your breaker box to power your home during a power outage.

Portability

The Firman P03612 has the following dimensions: L24.8 x W21.7 x H21.7 in. In combination with its conventional, open frame design, they provide support and allow the generator to be raised above ground level. The design is ideal for rough environments and demanding outdoor use.

Even though this device may be technically portable (as in movable), manipulation and transportation without special equipment can be a challenge, as it weighs 119.5 pounds. 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 P03612

The P03612's control panel

The P03612'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, the device’s light indicator will display if the oil level is too low.

A built-in fuel gauge allows for a quick, easy and convenient check of the fuel level of the generator.

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

Along the basic documentation and an owner's manual (opens in a new tab), useful for starting the generator right away, the Firman P03612's package also includes these accessories: oil, key fob, tool kit and funnel.

Emissions

The Firman P03612 is EPA approved, but NOT CARB-compliant. Thus, it cannot be purchased or sold in California.

However, it features a spark arrestor and therefore, can be used in forested areas.

Product Videos

The Firman P03612 versus other generators

The following charts are provided to give you an idea of how some of the key specs of the Firman P03612 compare to generators of similar power (between 3500 and 4500 W).

  • Having a dry weight of 119.5 lbs, the Firman P03612 belongs in the expected weight range for generators which produce 3500 to 4500 rated watts. If weight is your top priority, one of the champions in this power category is the WEN GN400i, weighing just 66.1 pounds.
  • Because this generator emits noise as low as 67 dBA, it can be considered to have a pretty average expected noise rating for a device of its power. If you’d prefer a less noisy device, one of the most quiet devices, which share the same power range with this one, is the Westinghouse iGen4500DF, whose lowest noise levels reach just 52 dBA.
  • Thanks to an impressive running time of around 14 hours at 50% load, the P03612 benefits from a higher run time than many generators of a similar output. Concerning the run times, one of the several devices with a comparable output, offering the highest autonomy, is the Predator 4375, which is able to run for 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 fuel consumption is your top priority, we suggest to check out the Westinghouse iGen4500DF, which has a fuel consumption of only 0.23 GPH and thus, is one of the most efficient devices in our database.

Price comparison

As you can see from this interactive chart, when compared to other 3500-4500W generators, the Firman P03612 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 (67 dBA)
  • Decent fuel efficiency
WEAKNESSES:
  • Not CARB-compliant

Do you own the Firman P03612 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: 120/240V 60 Hz
Running watts3650 W
Starting watts4450 W
Running amps (@120/240V)30.4/15.2 amps
Peak amps (@120/240V)37.1/18.5 amps
Run time @50% load14 h
Run time @25% loadUnknown
Features
GFCI outletsNo
Covered outletsYes
Automatic Voltage RegulationYes
AC outlets
  • 1x Duplex 120V 20A (5-20R)
  • 1x 120/240V 30A (L14-30R)
  • 1x 120V 30A (TT-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 21.7 in
Noise (lower limit)67 dBA
THD< 25%
ComplianceEPA
SecurityLow oil and overload protection
Spark arrestorYes
NeutralBonded to frame
Accessories includedOil, funnel, tool kit, key fob, battery, and wheel kit
Warranty3 years
SeriesPerformance
UPC840876136126

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.

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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 P03612 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 homeSump pump (1/2 hp)10502150
Furnace fan (1/2 hp)8752350
Refrigerator (energy star)1921192
Toaster oven800800
Total2917 W4392 W
For campingRadiant heater13001300
RV refrigerator180600
RV AC (11,000 BTU)10101600
Blender400850
Total2890 W3480 W
For workGrinder14002500
Demolition hammer12601260
Electric fence (25 miles)250250
Total2910 W4010 W

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