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Rainier R4400 Spec Review

The Rainier R4400 is a portable open frame 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, gas powered R4400 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 R4400 will keep you connected whether you’re staying in or venturing out.

Zoom on the Rainier R4400

In summary, the Rainier R4400 is a portable generator especially useful for:

  • RV travellers who wish to upgrade their experience to another level
  • People occasionally participating in sporting competitions, open-air performances and outdoor festivals
  • Homeowners who want to be able to use the most necessary devices in their household, even during a blackout

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 R4400 in use

The Rainier R4400

The Rainier R4400 houses a 212 cc (5.9 hp) Rainier OHV 4-stroke engine, which provides 120V, consumes gasoline and delivers a running wattage of 3600W along with a peak wattage of 4400W.

With a noise rating of 69 dBA (less noisy than background music), the generator features a simple traditional pull-start mechanism, but also a convenient and easy-to-use electric starter (battery included).

With a full tank, the R4400 can operate for up to 18 hours (fuel consumption around 0.22 GPH), thanks to its fuel capacity of 4 gallons.

The R4400 is unsuitable for the powering of sensitive electronic devices due to its relatively high THD (<23%).

Outlets

The control panel features the upcoming 4 AC outlets:

Duplex 120V 20A (5-20R)
120V 30A (L5-30R) receptacle
120V 30A (TT-30R) receptacle

With its TT-30R receptacle (TT as in 'Travel Trailer'), this Rainier generator is RV Ready.

Portability

The Rainier R4400 has the following dimensions: L23.5 x W23 x H21 in. In combination with its conventional, open frame design, they provide support and allow the generator to be raised above ground level. The featured design is ideal for the outdoors and all tough environments.

While the generator is considered to be technically 'portable' (in the sense that you can move it), manually lifting and transporting it may be challenging, due to its high weight of 111 lbs. Still, once it is on the ground, its wheel kit (⌀8") and its folding handle can easily solve the issue of low mobility and allow for easy relocation of the device.

Features

Panel of the Rainier R4400

The R4400's control panel

To help you monitor the R4400's status and activity, its control panel is equipped with a convenient meter showing you voltage, frequency and lifetime hours.

The fuel level of the generator can be determined quickly, easily, and conveniently with the help of its built-in fuel gauge.

Security-wise, this product benefits from an overload protection (circuit breaker) and an automatic low oil shut-off, which gives you a complete peace of mind when using it.

Regarding its accessories, besides the aforementioned features, the Rainier R4400's box includes the typical documentation and an owner's manual (opens in a new tab), letting you start it right off the bat.

Emissions

The Rainier R4400 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 and thus, may be used in forested areas.

The Rainier R4400 versus other generators

The following charts are provided to give you an idea of how some of the key specs of the Rainier R4400 compare to generators of similar power (between 3500 and 4500 W).

  • Since the generator weighs in at a dry weight of 111 lbs, the Rainier R4400 belongs in the expected weight range for devices which can produce between 3500 and 4500 rated watts. If weight matters to you, one of the champions in this power range is the WEN GN400i with only 66.1 pounds.
  • Among the generators of a comparable running wattage, this generator with a lowest noise of 69 dBA can be judged as noisy. For those who are looking for a less noisy device, we suggest the Cummins Onan P4500i. With just 52 dBA, it is one of the most quiet devices in this power range.
  • The R4400, falls within the average autonomy range compared to generators of a roughly same power, with a run time of up to 18 hours at a 25% load and a full tank. Furthermore, considering the run times, one of the generators which have a roughly same power output, with the highest autonomy, is the Champion 200954, as it provides up to 22 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 has an average fuel consumption among comparably powerful devices, as it reaches 0.22 GPH (gallon per hour) at a 25% load. 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.

Price comparison

As you can see from this interactive chart, when compared to other 3500-4500W generators, the Rainier R4400 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
  • RV Ready
  • Electric start
AVERAGE SPECS:
  • Decent weight (111 lbs)
  • Decent run time
  • Decent fuel efficiency
WEAKNESSES:
  • No remote start
  • On the noisy side (69 dBA)

Do you own the Rainier R4400 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
FuelGasoline
Engine212 cc Rainier OHV 4-stroke
Starting systemRecoil, Electric
Power
VoltageAC: 120V 60 Hz
Running watts3600 W
Starting watts4400 W
Running amps30 amps
Peaks amps36.7 amps
Run time @50% load13.5 h
Run time @25% load18 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
Weight111 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 includedBattery 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 R4400 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 homeDish washer15003000
Refrigerator (energy star)1921192
Vacuum cleaner10751175
Radio100100
Total2867 W4367 W
For campingRV AC (11,000 BTU)10101600
RV refrigerator180600
Electric grill16501650
Total2840 W3430 W
For workGrinder14002500
Demolition hammer12601260
Bug zapper8080
Total2740 W3840 W

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