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Rainier R4400DF - Spec Review

The Rainier R4400DF is a portable open frame dual fuel generator with a rated wattage of 3600 W and a starting wattage of 4400 W.

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Description

Life is an adventure. Be prepared with the convenient dual fuel R4400DF Electric Start Portable Generator created by Rainier. Why not be ready with a reliable power source when you're needing it the most? From emergency backup use to camping and tailgating, this is the perfect choice as your go-to power supply for open gatherings, outdoor activities, and home use alike. For all that life brings you, the R4400DF will keep you connected whether you’re staying in or venturing out.

Zoom on the Rainier R4400DF

In summary, the Rainier R4400DF 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 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, including its emission compliance information.

Power & Run Time

The Rainier R4400DF in use

The Rainier R4400DF

Thanks to its dual-fuel technology, the Rainier R4400DF delivers 120V and offers power and versatility. When gasoline-powered, it benefits from a running wattage of 3600W and a peak wattage of 4400W. When propane-powered, it has 3300 rated watts and 4000 peak watts.

The generator is rated for a noise of 69 dBA (less noisy than an office). Its starting mechanisms include a conventional pull-start mechanism and a simple and elegant electric starter (battery included).

As for its running time, the R4400DF, along with its 4 gallons fuel capacity, can run for up to 18 hours with a full tank filled with gasoline (fuel consumption around 0.22 GPH). If propane is used, it can operate for up to 11 hours (on a 20 lbs tank - propane consumption around 0.43 GPH).

Since the R4400DF has a somewhat high THD (<23%), 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)
120V 30A (L5-30R) receptacle
120V 30A (TT-30R) receptacle

This Rainier generator is RV Ready, thanks to its TT-30R receptacle (TT stands for 'Travel Trailer').

Portability

The design of the Rainier R4400DF is a typical, open frame, with the dimensions of L23.5 x W23 x H21 in, offering support and stability and enabling the possibility of raising it above ground level. The design is ideal for rough environments and demanding outdoor use.

Since the generator weighs 113 lbs, it will be incredibly difficult to manually lift it and transport it, even though it is technically considered to 'be portable' (in the sense that it is movable). Nevertheless, it can still be moved quite conveniently with the help of its wheel kit (⌀8") and its folding handle, once it is placed on the ground.

Features

Panel of the Rainier R4400DF

The R4400DF's control panel

The R4400DF and its control panel include a convenient meter showing you voltage, frequency and lifetime hours. This feature comes handy when monitoring 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.

From a security standpoint, the product offers an overload protection (circuit breaker) and an automatic low oil shut-off, 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 R4400DF's packaging.

Emissions

The Rainier R4400DF is EPA-approved and CARB-compliant. It can therefore be sold and purchased in all 50 states, including California.

Moreover, it features a spark arrestor, making it usable in forested areas.

Product Videos

The Rainier R4400DF versus other generators

The following charts are provided to give you an idea of how some of the key specs of the Rainier R4400DF compare to generators of similar power (between 3500 and 4500 W).

  • At a weight of 113 pounds, the Rainier R4400DF places in the expected weight range of the generators in the 3500-4500 rated wattage range. If weight matters to you, one of the champions in this power range is the WEN GN400i with only 66.1 pounds.
  • If compared to generators capable of producing a similar running wattage, this generator with a lowest emitted noise of 69 dBA can be considered somewhat noisy. 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 Cummins Onan P4500i, whose lowest noise levels reach just 52 dBA.
  • Offering up to 18 hours of running time on a full tank at 25% load, the R4400DF is within the average autonomy range of similarly powerful generators. If concerned with autonomy, one of the products of a comparable power output, which offers the highest run time, is the Champion 200914, boasting with up to 22 hours.
  • Run times are important, yet thanks to their dependence on the fuel capacity, they should be judged along with the fuel consumption of the device. Standing at an estimated 0.22 GPH (gallon per hour) at a 25% load, this generator is somewhat average in this area compared to other devices, within the aforementioned wattage range. If you wish to acquire one of the most gasoline efficient products of this power range, the Westinghouse iGen4200, with a fuel consumption of 0.14 GPH could be in your good books.

The bottom line

STRENGTHS:
  • RV Ready
  • Electric start
  • Dual Fuel
AVERAGE SPECS:
  • Decent weight (113 lbs)
  • Decent run time
  • Decent fuel efficiency
WEAKNESSES:
  • No remote start
  • On the noisy side (69 dBA)

Do you own the Rainier R4400DF 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
FuelDual Fuel (gasoline/propane)
Engine212 cc Rainier OHV 4-stroke
Starting systemRecoil, Electric
VoltageAC: 120V 60 Hz
Power
 GasolinePropane
Running watts3600 W3300 W
Starting watts4400 W4000 W
Running amps30 amps27.5 amps
Peak amps36.7 amps33.3 amps
Run time @50% load13.5 hUnknown
Run time @25% load18 h11 h
Features
GFCI outletsNo
Covered outletsNo
Automatic Voltage RegulationYes
AC outlets
  • 1x Duplex 120V 20A (5-20R)
  • 1x 120V 30A (L5-30R)
  • 1x 120V 30A (TT-30R)
DC outletsNo
Data centerVFT
IndicatorsNo
Fuel tank4 gal
Fuel gaugeYes
Misc
Weight113 lbs
Approx. dimensions (L x W x H)23.5 x 23 x 21 in
Noise (lower limit)69 dBA
THD< 23%
EmissionsCARB, EPA
SecurityLow oil and overload protection
Spark arrestorYes
NeutralFloating
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 R4400DF 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 sizing calculator.
ItemRunning WattsStarting Watts
At homeRefrigerator (energy star)1921192
Hair dryer18001900
Freezer8101750
Set of 5 LED light bulbs5555
Total2857 W3857 W
For campingRadiant heater13001300
RV refrigerator180600
RV AC (11,000 BTU)10101600
Slow cooker270270
Radio100100
Total2860 W3450 W
For workGrinder14002500
Demolition hammer12601260
Bug zapper8080
Total2740 W3840 W

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