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Rainier R12000DF Spec Review

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

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Rainier R12000DFRainier R12000DFRainier R12000DFRainier R12000DF
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Price history for the Rainier R12000DF
Latest updates:
  • $1,195.95 - May 27, 2021
  • $1,395.95 - May 25, 2021
  • $1,495.95 - May 22, 2021
Data source: ebay.com
Since: May 22, 2021
  • Highest Price: $1,495.95 - May 22, 2021
  • Lowest Price: $1,195.95 - May 27, 2021

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:

  • Prudent homeowners who want a backup power source in case of a power outage
  • Professionals who want to ensure that a power failure will not prevent them from working
  • Homeowners in need of an emergency backup power for their essentials
  • RV travellers looking for even more independence

The following sections will present you in detail its power characteristics, the different outlets it offers, its overall portability, the extra features it benefits from, and any relevant emission compliance details.

Power & Run Time

The Rainier R12000DF in use

The Rainier R12000DF

Thanks to its dual-fuel technology, the Rainier R12000DF delivers 120/240V and offers power and versatility. When gasoline-powered, it benefits from a running wattage of 9500W and a peak wattage of 12000W. When propane-powered, it has 8550 rated watts and 10800 peak watts.

The generator is rated for a noise of 74 dBA (just slightly more noisy than a vacuum cleaner). Its starting mechanisms include a simple traditional pull-start mechanism and a convenient and easy-to-use electric starter (battery included).

The R12000DF, with a fuel capacity of 6.6 gallons, reaches a run time of up to 17 hours utilizing gasoline (fuel consumption around 0.39 GPH). Alternatively, it can reach a run time of up to 11 hours (on a 20 lbs tank - propane consumption around 0.43 GPH) with propane.

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

Outlets

The control panel provides 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, because the R12000DF is equipped with a twist-lock L14-30R receptacle, it is transfer switch ready: it can power your home during a power outage, as it can be easily connected to your breaker box to power your household.

Portability

The design of the Rainier R12000DF is a typical, open frame, with the dimensions of L29 x W24.5 x H24 in, offering support and stability and enabling the possibility of raising it 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). Nevertheless, it can still be moved quite conveniently with the help of its wheel kit (⌀10") and its folding handle, once it is placed on the ground.

Features

Panel of the Rainier R12000DF

The R12000DF's control panel

The R12000DF and its control panel include a convenient meter, which displays voltage, frequency and lifetime hours. This feature comes handy when monitoring its status and activity.

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

From a security standpoint, the product offers an automatic low oil shut-off and an overload protection (circuit breaker), allowing you to 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. Thus, selling and purchasing this generator is allowed in each 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 for its weight, the Rainier R12000DF weighs only 196 pounds, making it one of the lightest generators in the 9000-10000 rated wattage category.
  • This generator has a somewhat average expected noise for its power range, rated at 74 dBA. For those who are looking for a less noisy device, we suggest the A-iPower SUA12000ED. With just 69 dBA, it is one of the most quiet devices in this power range.
  • 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 autonomy is your priority, one of the devices of a similar power output with the highest run time is the Westinghouse WGen9500DF, reaching up to 17.5 hours.
  • Even though run times are undoubtedly important, they are dependent on the fuel capacity to a large extent. For a more wholesome picture, we must take into consideration the fuel consumption of the generator. This generator is rather wasteful, compared to other devices within the aforementioned output range, when it comes to gasoline consumption, as it reaches roughly 0.39 GPH at a 25% load. If you are concerned with gasoline efficiency, having a fuel consumption of just 0.38 GPH, the Westinghouse WGen9500DF is a device you should look out for.

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
Peak 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 wattage calculator.
ItemRunning WattsStarting Watts
At homeMicrowave (1000 watts)15001500
Electric fry pan15001500
AC (10,000 BTU)15002200
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
Microwave (1000 watts)15001500
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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