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Rainier R12000DF Spec Review

The Rainier R12000DF is a powerful open frame dual fuel portable generator with a rated wattage of 9500 W and a starting wattage of 12000 W.

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Picture 1 of the Rainier R12000DF
Picture 2 of the Rainier R12000DF
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Picture 4 of the Rainier R12000DF
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Price History
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Price history for the Rainier R12000DF
Latest updates:
  • $1,189.71 - January 19, 2021
  • $1,392.32 - January 16, 2021
  • $1,178.98 - January 14, 2021
  • $1,300.84 - January 7, 2021
  • $1,251.18 - January 6, 2021
  • $1,222.78 - December 25, 2020
  • $1,137.16 - December 18, 2020
  • $1,300.84 - December 16, 2020
Data source: ebay.com
Since: August 25, 2020
  • Highest Price: $1,392.32 - January 16, 2021
  • Lowest Price: $1,079.75 - December 15, 2020

Description

Dependability is an essential when you're facing the unknown. Rest assured with the Rainier R12000DF, a dual fuel electric start portable generator to provide your home or work area a source of reliable energy. With a heavy duty features, you can count on this robust, yet versatile workhorse to power your air conditioner, sump pump, kitchen appliances, tools, and other small electronics at once. Keep your life up and running with the R12000DF, the high performance choice to count on.

Zoom on the Rainier R12000DF

In a nutshell, the Rainier R12000DF is a powerful portable generator mostly geared towards:

  • Prudent homeowners who want a backup power source in case of a power outage
  • Professionals in need of safely powering high-intensity work or lighting equipment
  • Homeowners who want to be able to use the most necessary devices in their household, even during a blackout
  • RV travellers looking for even more independence

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 Rainier R12000DF in use

The Rainier R12000DF

The dual-fuel technology of the Rainier R12000DF allows for an output of 120/240V and provides superb power and versatility. If gasoline-powered, the device provides a running wattage of 9500W and a starting wattage of 12000W. If propane-powered, it gives 8550 rated watts and 10800 starting watts.

Enjoying a noise rating of 74 dBA (just slightly more noisy than a dishwasher), this generator can be started thanks to a conventional pull-start mechanism, but also to a simple and elegant electric starter (battery included).

The running time of the R12000DF, with its 6.6 gallons fuel capacity, can reach up to 17 hours on a full tank of gasoline (fuel consumption around 0.39 GPH). With propane, it can reach up to 11 hours (on a 20 lbs tank - propane consumption around 0.43 GPH).

The R12000DF is unsuitable for the powering of sensitive electronic devices due to its relatively high THD (<23%).

Outlets

The control panel features the upcoming 5 AC outlets:

Duplex 120V 20A (5-20R) GFCI
120V 30A (L5-30R) receptacle
120/240V 30A (L14-30R) receptacle
120/240V 50A (14-50R) receptacle

If you own an RV with a 50-amp service, you can consider this Rainier unit as RV-ready, as it features a 14-50R outlet. In addition, since the R12000DF bears a twist-lock L14-30R receptacle, it is transfer switch ready: it is easily connectible to a breaker box and can power your home in case of a power outage.

Portability

The Rainier R12000DF has a conventional, open frame design, of the following dimensions: L29 x W24.5 x H24 in, which offers support and allows it to be raised above ground level. The generator is designed for ideal use outdoors and in rough environments.

As the generator's weight is 196 pounds, manually moving it or transporting it may be challenging, despite the fact that it is technically considered 'portable' (movable). However, its challenging mobility is solved by its wheel kit (⌀10") and its folding handle, which will ease its displacement, once it is on the floor.

Features

Panel of the Rainier R12000DF

The R12000DF's control panel

The control panel of the R12000DF includes a convenient meter showing you voltage, frequency and lifetime hours, helpful for the monitoring of its status and activity.

The generator includes a built-in fuel gauge, a quick, easy and convenient method of checking the device’s gas level.

As for its security measures, the device features an overload protection (circuit breaker) and an automatic low oil shut-off, letting you use it with a peace of mind.

Besides the usual set of documentation and owner's manual (opens in a new tab) to get you promptly started, Rainier also included a propane hose in the R12000DF's packaging.

Emissions

The Rainier R12000DF is EPA-approved and CARB-compliant. Therefore, its sale and purchase are permitted in all of the 50 states, including California.

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

The Rainier R12000DF versus other generators

The following charts are provided to give you an idea of how some of the key specs of the Rainier R12000DF compare to generators of similar power (between 9000 and 10000 W).

  • As far as its dry weight is concerned, the Rainier R12000DF weighs just 196 pounds and thus, it is one of the lightest 9000 to 10000 rated wattage generators.
  • This generator has a somewhat average expected noise for its power range, rated at 74 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 A-iPower SUA12000ED, whose lowest noise levels reach just 69 dBA.
  • Thanks to an impressive running time of up to 17 hours at 25% load, the R12000DF benefits from a higher run time than many generators of a similar output. If concerned with autonomy, one of the products of a comparable power output, which offers the highest run time, is the Westinghouse WGen9500, boasting with up to 17.5 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. This generator is not fuel efficient compared to devices of similar output: its estimated fuel consumption stands at 0.39 GPH at a 25% load. If you wish to further improve in the area of fuel efficiency, the Westinghouse WGen9500DF, which boasts with a gas consumption of only 0.38 GPH, may be the right generator for you.

Price comparison

As you can see from this interactive chart, when compared to other 9000-10000W generators, the Rainier R12000DF 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
  • GFCI Outlets
  • Electric start
  • Dual Fuel
  • Lightweight for its kind (196 lbs)
  • High run time
AVERAGE SPECS:
  • Acceptable noise (74 dBA)
WEAKNESSES:
  • No remote start
  • Low fuel efficiency

Do you own the Rainier R12000DF 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 readyNo
FuelDual Fuel (gasoline/propane)
Engine457 cc Rainier OHV 4-stroke
Starting systemRecoil, Electric
VoltageAC: 120/240V 60 Hz
Power
 GasolinePropane
Running watts9500 W8550 W
Starting watts12000 W10800 W
Running amps (@120/240V)79.2/39.6 amps71.3/35.6 amps
Peaks amps (@120/240V)100/50 amps90/45 amps
Run time @50% load12 hUnknown
Run time @25% load17 h11 h
Features
GFCI outletsYes
Covered outletsNo
Automatic Voltage RegulationYes
AC outlets
  • 1x Duplex 120V 20A (5-20R) GFCI
  • 1x 120V 30A (L5-30R)
  • 1x 120/240V 30A (L14-30R)
  • 1x 120/240V 50A (14-50R)
DC outletsNo
Data centerVFT
IndicatorsNo
Fuel tank6.6 gal
Fuel gaugeYes
Misc
Weight196 lbs
Approx. dimensions (L x W x H)29 x 24.5 x 24 in
Noise (lower limit)74 dBA
THD< 23%
EmissionsCARB, EPA
SecurityLow oil and overload protection
Spark arrestorYes
NeutralBonded to frame
Accessories includedPropane hose, battery, and wheel kit
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.

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About Rainier

Rainier Outdoor Power Equipment, LLC is a subsidiary of Midwest Equipment Sales, LLC, based in Ohio, USA. Midwest Equipment Sales has over 150 combined years of experience in the business of supplying high quality products to the heavy construction industry, including equipment for outdoor power needs. They also manage the Westinghouse brand of portable generators, so one might expect similar quality of the Rainier brand. The Rainier brand of portable power products are available exclusively through Amazon.

Warranty Information

The Rainier R12000DF 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 Rainier generators, please contact the Rainier Customer Support: 1-844-202-2411.

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
Set of 5 LED light bulbs5555
Total7572 W9047 W
For campingRadiant heater13001300
RV refrigerator180600
Hair dryer18001900
Electric grill16501650
Microwave (1000 watts)15001500
RV AC (11,000 BTU)10101600
Radio100100
Set of 5 LED light bulbs5555
Total7595 W8185 W
For workTable saw18004500
Air compressor (1 hp)16006100
Grinder14002500
Demolition hammer12601260
Pressure washer (1 hp)12003600
Bug zapper8080
Total7340 W11840 W

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