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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
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Set an alert for the Rainier R12000DF - Current lowest price: $1,382.38
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Price History
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Price history for the Rainier R12000DF
Latest updates:
  • $1,382.38 - June 13, 2020
  • $1,402.38 - June 9, 2020
  • $1,382.38 - May 31, 2020
  • $1,364.70 - May 22, 2020
  • $1,372.60 - May 15, 2020
  • $1,364.56 - May 7, 2020
  • $1,378.54 - April 30, 2020
  • $1,158.98 - April 27, 2020
Data source: ebay.com
Since: April 27, 2020
  • Highest Price: $1,402.38 - June 9, 2020
  • Lowest Price: $1,158.98 - April 27, 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 summary, the Rainier R12000DF is a powerful portable generator especially useful for:

  • Homeowners who wish to power almost all appliances in their house under any circumstances
  • 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 who wish to upgrade their experience to another level

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 Rainier R12000DF in use

The Rainier R12000DF

With its dual-fuel technology, the powerful and versatile Rainier R12000DF provides an output of 120/240V. While gasoline-powered, it gives a running wattage of 9500W along with a peak wattage of 12000W. While propane-powered, it provides 8550 rated watts and 10800 starting watts.

Enjoying a noise rating of 74 dBA (just slightly more noisy than a vacuum cleaner), this generator can be started thanks to a simple traditional pull-start mechanism, but also to a convenient and easy-to-use electric starter (battery included).

As for its running time, the R12000DF, along with its 6.6 gallons fuel capacity, can run for up to 17 hours with a full tank filled with gasoline (fuel consumption around 0.39 GPH). If propane is used, it can operate for up to 11 hours (on a 20 lbs tank - propane consumption around 0.43 GPH).

As the R12000DF has a relatively high THD (<23%), it is not recommended to use it to power sensitive electronic devices.

Outlets

The control panel features the following 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 the following dimensions: L29 x W24.5 x H24 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.

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). Nevertheless, thanks to its wheel kit (⌀10") and its folding handle (a decent solution to its lack of maneuverability), the generator can be easily moved, once placed the ground.

Features

Panel of the Rainier R12000DF

The R12000DF's control panel

To help you monitor the R12000DF's status and activity, its control panel is equipped with a convenient meter, which displays voltage, frequency and lifetime hours.

Thanks to a built-in fuel gauge, the generator allows you to quickly, conveniently and easily check the gas level at a glance.

From a security point of view, the generator is equipped with an automatic low oil shut-off and an overload protection (circuit breaker), giving you a peace of mind during use.

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 and therefore, can be used 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 for its weight, the Rainier R12000DF weighs only 196 pounds, making it one of the lightest generators in the 9000-10000 rated wattage category.
  • Since the generator's noise is rated at 74 dBA, it has the roughly average expected noise for a device of similar power. If noise emissions are important to you, one of the least noisy generators of this power range is the A-iPower SUA12000ED with only 69 dBA.
  • Since the R12000DF boasts with a run time of up to 17 hours at 25% load, it can be safely judged as a device of a higher run time than most generators of a comparable output. If autonomy is your priority, one of the devices of a similar power output with the highest run time is the Westinghouse WGen9500, reaching up to 17.5 hours.
  • While the run time is an important parameter, it is dependent on the fuel tank’s capacity and thus, doesn’t say much on its own unless we consider 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 hN/A
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 and battery
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.

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 consult Rainier's warranty policies (opens in a new tab). Alternatively, you can also contact their Customer Support: support@rainierpower.com.

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 sizer.
ItemRunning WattsStarting Watts
At homeElectric fry pan15001500
AC (10,000 BTU)15002200
Microwave (1000 watts)15001500
Dish washer15003000
Sump pump (1/2 hp)10502150
Refrigerator (energy star)1921192
Slow cooker270270
Set of 5 LED light bulbs5555
Total7567 W9067 W
For campingRV AC (11,000 BTU)10101600
RV refrigerator180600
Hair dryer18001900
Electric grill16501650
Electric fry pan15001500
Radiant heater13001300
Radio100100
Set of 5 LED light bulbs5555
Total7595 W8185 W
For workTable saw18004500
Air compressor (1 hp)16006100
Grinder14002500
Demolition hammer12601260
Disc sander12001200
Bug zapper8080
Total7340 W11840 W

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