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Firman T12071 - 12000/15000W Tri Fuel Generator With Electric Start

The Firman T12071 is a powerful open frame tri-fuel generator with a rated wattage of 12,000 W and a starting wattage of 15,000 W. (Read full specs)

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$3,499.00
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Description

Zoom on the Firman T12071

In a nutshell, the Firman T12071 is a powerful portable generator mostly geared towards:

  • Professionals who want to be able to deliver results, even during a power failure
  • 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.

Power & Run Time

The Firman T12071 in use

The Firman T12071

The Firman T12071 delivers 120/240V and benefits from a tri-fuel technology that allows it to run on gasoline, propane, or natural gas. When gasoline-powered, it enjoys a running wattage of 12,000W and a peak wattage of 15,000W. When propane-powered, it benefits from 11,000 rated watts and 13,750 peak watts. Its natural gas operation offers 10,000W of rated wattage and 12,500W of starting wattage.

Rated for 81 dBA (just slightly more noisy than an alarm clock), the generator's starting mechanism relies on an easy-to-use and reliable electric starter (battery included).

The running time of the T12071, with its 13.3 gallons fuel capacity, can reach around 11 hours at 50% load on a full tank of gasoline (fuel consumption around 1.21 GPH). With propane, it can reach around 3 hours (estimation based on a 20 lbs tank - propane consumption around 1.57 GPH).

Thanks to its low <5% Total Harmonic Distortion (THD), the T12071 produces a clean sine wave output, making it safe for your sensitive electronics when utilizing the AC outlets.

Outlets

The full GFCI control panel provides the upcoming 8 AC outlets:

Two Duplexes 120V 20A (5-20R)
Two 120V 30A (L5-30R) receptacles
120/240V 30A (L14-30R) receptacle
120/240V 50A (14-50R) receptacle

Moreover, it comes equipped with 1 DC outlet: there's a 12V 8A (cigarette lighter style) receptacle providing easy battery charging capabilities.

This Firman generator features an L5-30R receptacle, enabling an easy RV connection via an L5-30P to TT-30R adaptor. However, it is still not quite RV ready. Besides, with its twist-lock L14-30R receptacle, the T12071 is designed to be transfer switch ready, allowing easy connection to your breaker box for powering your home during a blackout.

Portability

With its L36 x W31.9 x H40 in dimensions, the open frame structure of the Firman T12071 guarantees stability, simplified maintenance access to components, and better air cooling than enclosed units. The generator is designed for ideal use outdoors and in rough environments.

Even at 390 lbs, the generator is categorized as 'portable,' suggesting its movability, although its weight impede its portability. Still, once it is on the ground, its wheel kit (⌀12") and its folding handle can easily solve the issue of low mobility and allow for easy relocation of the device.

A lift hook located on the top of the frame offers an additional safety feature while facilitating the transport, loading and unloading of the generator.

Features

Panel of the Firman T12071

The T12071's control panel

The control panel of the T12071 includes a convenient meter showing you voltage, frequency and lifetime hours, helpful for the monitoring of its status and activity.

With its built-in fuel gauge, the generator provides quick and convenient gas level checks.

As far as security is concerned, the generator comes with an overload protection (circuit breaker) and an automatic low oil shut-off, providing peace of mind during use.

The T12071 also benefits from Firman’s CO Alert carbon monoxide shutdown, which automatically shuts down the engine when harmful levels of carbon monoxide accumulate around the generator or a CO Alert fault occurs.

With the basic documentation and an owner's manual (opens in a new tab), letting you start the generator quickly, the Firman T12071 also comes with several accessories, including: battery charger, propane hose, oil, funnel, tool kit and battery charging cables.

Product Videos

The Firman T12071 versus other generators

The following charts are provided to give you an idea of how some of the key specs of the Firman T12071 compare to multi-fuel generators of similar power (between 10000 and 14000 W).

  • At 390 lbs, the Firman T12071 stands out as one of the heaviest multi-fuel generators rated from 10000 to 14000 watts. If weight is a key factor for your needs, the DuroStar DS13000MX is noteworthy for being one of the top contenders in this power range, with a dry weight of 209 pounds.
  • The generator can be considered average in its noise for its type and power category, as it is rated at 81 dBA. 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 DuroMax XP16000iHT, whose lowest noise levels reach just 67 dBA.
  • At 50% load, the T12071 achieves one of the longer run times compared to multi-fuel devices of similar power, sustaining operations for around 11 hours. If you consider autonomy on a single full tank as one of the deciding factors, one of the generators in the same power range that offers the highest run time is the Predator 13000, with around 12.1 hours.
  • Run time is crucial, but it heavily relies on the fuel tank's capacity. Thus, considering fuel efficiency alongside is essential. Compared to its peers, this generator is not exactly fuel-efficient, compared to similarly powerful devices, with an estimated fuel consumption of 1.21 GPH at a 50% load. If you wish to further improve in the area of fuel efficiency, the WEN TF1450, which boasts with a gas consumption of only 0.68 GPH, may be the right generator for you.

Price comparison

As you can see from these interactive charts, when compared to other 10000-14000W multi-fuel generators, the Firman T12071 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
  • Tri-fuel
  • CO Alert technology
  • Full GFCI panel
  • Impressive quantity of AC outlets
  • 4 different AC outlet types
  • Electric start
  • Clean sine wave
  • High run time
AVERAGE SPECS:
  • Acceptable noise (81 dBA)
WEAKNESSES:
  • Natural gas hose not included
  • No recoil back-up
  • No remote start
  • On the heavy side (390 lbs)
  • Low fuel efficiency

Do you own the Firman T12071 and agree (or disagree) with these strengths and weaknesses?

Let us know and write your own review.

Features and Specifications

General
InverterNo
Parallel capableNo
RV readyNo
FuelTri-Fuel (gasoline/propane/natural gas)
Engine760 cc OHV V-Twin
Starting systemElectric
Warranty3 years
VoltageAC: 120/240V 60 Hz, DC: 12V
Power
GasolineLPGNG
Running watts12,000 W11,000 W10,000 W
Starting watts15,000 W13,750 W12,500 W
Running amps (@120/240V)100/50 amps91.7/45.8 amps83.3/41.7 amps
Peak amps (@120/240V)125/62.5 amps114.6/57.3 amps104.2/52.1 amps
Run time @50% load11 h3 h *N/A
Run time @25% loadUnknownUnknownN/A
Features
GFCI outletsFull panel
Covered outletsYes
Automatic Voltage RegulationYes
AC outlets
  • 2x Duplex 120V 20A (5-20R)
  • 2x 120V 30A (L5-30R)
  • 1x 120/240V 30A (L14-30R)
  • 1x 120/240V 50A (14-50R)
DC outlets1x 12V 8A (cigarette lighter style)
Data centerVFT
IndicatorsNo
Fuel tankSteel, 13.3 gal
Fuel gaugeYes
Misc
Weight390 lbs
Approx. dimensions (L x W x H)36 x 31.9 x 40 in
Noise (lower limit)81 dBA
THD< 5%
ComplianceEPA, ANSI/PGMA G300-2023
SecurityLow oil and overload protection, CO monitoring
Spark arrestorYes
NeutralBonded to frame
Accessories includedOil, funnel, tool kit, battery charger, propane hose, battery charging cables, battery, and wheel kit
SeriesHybrid
UPC840876120712

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.
* Propane runtime is our own estimation, based on a 20 lbs tank and NIST 1994 GGE (Gasoline Gallon Equivalent) formula: 5.66 lbs of propane = 1 gal of gasoline.

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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 T12071 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 homeSump pump (1/2 hp)10502150
Furnace fan (1/2 hp)8752350
Refrigerator (energy star)1921192
Clothes dryer54006750
Hair dryer18001900
Slow cooker270270
Total9587 W11062 W
For workElectric welder90009000
Drain cleaner250250
Electric fence (25 miles)250250
Bug zapper8080
Total9580 W9580 W

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