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Firman 4,550-Watt Portable RV Generator - 3,650 Running Watts - Propane or Gas - Electric Start
Firman

Firman 4,550-Watt Portable RV Generator - 3,650 Running Watts - Propane or Gas - Electric Start

Part Number: FIR33VR
$690.07
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This dual fuel generator can easily start and run a pair of 15,000 Btu RV air conditioners. Using gas or propane, it provides power to run appliances and electronics inside your RV. CO Alert turns engine off when hazardous gas buildup is detected. 1-800-940-8924 to order Firman generators part number FIR33VR or order online at etrailer.com. Free expert support on all Firman products. Great prices and Fastest Shipping for Firman 4,550-Watt Portable RV Generator - 3,650 Running Watts - Propane or Gas - Electric Start. Generators reviews from real customers.
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Firman Generators - FIR33VR

  • Gas
  • Gas and Propane
  • Propane
  • No Inverter
  • 4550 Starting Watts
  • 120 Volt Output
  • 3650 Running Watts
  • Electric Start
  • Firman
  • Wheels
  • CARB Approved

This dual fuel generator can easily start and run a pair of 15,000 Btu RV air conditioners. Using gas or propane, it provides power to run appliances and electronics inside your RV. CO Alert turns engine off when hazardous gas buildup is detected.


Features:

  • 4,550-Watt, dual fuel generator provides a portable power source
    • Use propane or gas during trips in your RV or in an emergency
  • Electric-start engine starts up with the push of a button
    • Recoil handle lets you pull start the engine if needed
  • 3-in-1 Data-Minder monitors voltage, frequency, and running hours
  • Firman 4-stroke engine uses standard unleaded gas or propane - no need to mix gas and oil
  • Built-in safety features include CO Alert sensor, warning lights, voltage regulator, and spark arrestor
  • Fold-down handle and 8" flat-free wheels provide easy mobility
  • Strong, tubular steel frame
  • Clean-running engine meets CARB, cETL, and EPA standards


Specs:

  • Outlets:
    • (2) 120V 20-amp 5-20R
    • 120V 30-amp L5-30R
    • 120V 30-amp TT-30R
  • Starting (surge) power output:
    • Gas: 4,550 watts
    • Propane: 4,100 watts
  • Running (rated) power output:
    • Gas: 3,650 watts
    • Propane: 3,300 watts
  • Continuous run time at 1/2 load: 14 hours
  • Noise level (normal conversation is 60 dB):
    • Measured at 25' away at 1/2 load in standard mode: 67 dB
  • Engine type: Single Cylinder, 4-Stroke OHV Air Cooled, 208cc
  • Fuel type: gasoline or propane
    • Gas tank capacity: 5 gal
  • Oil type: SAE 10W-30
    • Capacity: 0.6 qt
  • Power line frequency: 60 Hz
  • Dry weight: 119.5 lbs
  • Dimensions: 25-3/4" long x 21-3/4" wide x 21-5/8" tall
  • Warranty: 3 years

Includes:

  • Battery
  • 5' Propane hose with regulator
  • Folding handle
  • Support leg with vibration mounts
  • 8" Flat-free wheels
  • Engine oil
  • Oil funnel
  • Spark plug wrench
  • 2 Double open wrenches (10 mm and 12 mm)


Notes:

  • Gas generators produce carbon monoxide, which is poisonous. For your safety, always be sure to operate this gas-powered generator outdoors.
  • Because this generator does not have a built-in inverter to control the electrical current, the voltage can fluctuate. Therefore, do not plug sensitive electronic devices such as a computer or television into the generator.

Certifications

Meets the following important certification standards:

  • US Environmental Protection Agency (EPA)
  • California Air Resources Board (CARB)
  • cETL - Compliant with North American Safety Standards

High-Output Capacity

outlets

The Firman H03654 Dual Fuel etrailer generator produces 4,500 watts of power to get you up and running whether you're at the campsite, at the worksite, or faced with an emergency. This powerful generator comes with (2) 120V outlets for powering household appliances, tools, and electronic devices. It features (1) 120V L5-30R twist-lock outlet for large appliances and motorized tools with greater electrical demands. Lastly, it has (1) 120V TT-30R RV outlet, ensuring you'll have access to electricity no matter where you take your RV or if there's a power outage at the campground. The generator also has outlet covers to help keep out moisture and debris.


Easy Electric Start Engine

The generator's engine starts up easily at the push of a button. Simply turn the fuel valve to "on" and flip the engine switch to the "run" position. Then, push the battery power restore switch for a few seconds and release. Once you press the start button, the generator will turn on.


Before starting your generator, ensure nothing is connected to the outlets. Start your generator and let the engine run for a few minutes to warm up and stabilize. Once the generator is up and running, follow the recommended order of operation: connect the device with the highest starting watts first, like your air conditioner or refrigerator, then work your way down to the device with the lowest starting watts. By connecting devices in this order, you'll ensure the generator has enough power to start high-wattage loads.


Dual Fuel Capability

dual fuel selector

For flexibility and convenience during road trips or in an emergency, this generator can use gasoline or propane to power the engine. In addition, using propane as an alternative fuel is a cleaner option for the environment. However, the power output slightly decreases while using propane.


  • Starting (surge) power output:
    • Gas: 4,500 watts
    • Propane: 4,050 watts
  • Running (rated) power output:
    • Gas: 3,600 watts
    • Propane: 3,250 watts

dual fuel propane connection

It also includes a 5' LPG hose to connect your propane tank. Once you have connected your generator, turn the fuel selector switch to the LPG position and start it up.


Safety Features

This generator comes with a number of safety features to protect you, the environment, and the generator itself. When the generator is low on oil, a light-up indicator flashes and the engine will automatically shut down to prevent damage. If an overload is detected, either by exceeding the generator's limits or a power surge, the circuit breaker will stop supplying power to the connected devices. The digital voltage regulator assists in minimizing voltage fluctuations which helps to maintain a steady flow of electricity. Also, a built-in spark arrestor helps prevent any sparking that might burn someone or start a fire. This arrestor has been certified by the USDA Forest Service.


Choosing a Generator

When choosing a generator, you need to match the generator's starting and running output with the electrical demands of the equipment you want to operate.


Power Demands

Starting (surge) wattage is the power a device requires at startup. Running (rated) wattage is the power needed to keep the device running. A large appliance with an electric motor such as a furnace, refrigerator, air conditioner, or washing machine may require 2 to 3 times more starting wattage than running wattage.


It is always best to start your generator with no load connected, then add each device one at a time. Additionally, a good practice to consider is connecting your devices in order from highest starting watts to lowest starting watts. As you connect and start devices, your available wattage decreases. This order of operation allows you to start devices with the highest power demands when there is more power available.


Will This Generator Run My RV Air Conditioner?

At etrailer, we perform numerous tests on generators that put them through real-world experience. An extensive part of this testing includes starting and running RV air conditioners. The following table will help you decide if the H03654 generator has enough power to handle this critical function in your RV.


Air Conditioner Will it start and run?
Single 13,500 Btu Yes
Single 15,000 Btu Yes
Dual 15,000 Btu Yes

Running Watts and Starting Watts of Common Appliances


Appliance Running Watts Starting Watts
Air compressor (1/2 hp) 1,000 2,000
Air conditioner (15,000 Btu ) 1,600 *
Air conditioner (13,500 Btu ) 1,300 *
Air conditioner (10,000 Btu ) 1,000 *
Blender 400 850
Cell phone charger 11 0
Clock radio 4 0
Coffee maker (high setting) 1,066 0
Crock pot (low setting) 126 0
Crock pot (high setting) 374 0
Desktop computer 150 - 350 0
DVD player 14 0
Electric drill (3/8" / 4 amps) 450 600
Electric space heater (high setting) 1,450 0
Floor fan 100 0
Hair dryer (low setting) 160 0
Hair dryer (high setting) 1,300 0
LCD television (32") 68 0
Microwave 1,000 0
Refrigerator 800 1,600
Washing machine 1,150 2,250
Work light (quartz halogen) 1,000 0

* The starting wattage on air conditioners can vary greatly depending on several factors, including the assistance of built-in capacitors and cold starts. Because of this, we can't list a standard starting wattage as every application can be different.


Determining Your Power Needs

The following section provides calculations for wattage estimates. This will give you an overall picture of your potential power usage and help you decide on the generator that is right for you.


Industry Standard Calculation

The Industry Standard Calculation is a quick and easy way to determine your required wattage. It may provide some padding in your wattage requirements, which could give you more power than you actually need, but you shouldn't have to worry about not having enough power. The following steps will help you quickly calculate the correct size generator to meet your application.


As stated earlier, you should always start your generator without any load, and then connect each device one at a time. The following calculation requires this approach to work. However, using this calculation removes the worry of connecting devices in a certain order.


1. Determine the starting watts and running watts for the devices that you want to plug into the generator.

a. Find the starting (surge) watts and running (rated) watts for each device that you want to plug into the generator. Look for a sticker or plate on each device or check your owner's manuals.

b. If your device or manual only shows amps and volts, watts can also be determined through a simple formula. (Amps x Volts = Watts)

c. List all of your starting watts and running watts as seen in Table 1 below.


Table 1

Example Devices Starting Watts Running Watts
Air compressor 2,000 1,000
Refrigerator 1,600 800
Microwave 0 1,000
Blender 850 400

2. To find the total starting watts required , add the starting watts for the device with the highest value to the running watts of all the other devices from Table 1 .


2,000 + 800 + 1,000 + 400 = 4,200 total starting watts


3. To find the total running watts , add all of the running watts together from Table 1 .


1,000 + 800 + 1,000 + 400 = 3,200 total running watts


To run all of these devices simultaneously, you would require a generator with at least 4,200 starting watts and 3,200 running watts.


Advanced, Precise Calculation

While the method for calculating your power needs outlined above will work, it isn't the most precise. If you aren't afraid of doing a little more math, you can use the Advanced, Precise Calculation to get a more accurate idea of how much power you will need and potentially save yourself some money. Because the calculation above pads in enough power to ensure you can start your devices in any order, it may point you to a bigger and more expensive generator than you need. However, by following the more regimented, order-of-operations calculation below, you'll get a much more precise idea of how much power you need, which could in turn point you to a smaller and less expensive generator.


Again, you should always start your generator without any load, and then connect each device one at a time. The following calculation also requires that you start your devices in order from highest starting watts to lowest starting watts. When you connect devices in this order, you can start high demand devices when there is more power available.


1. Determine the starting watts and running watts for each device that you want to plug into the generator.

a. Find the starting (surge) watts and running (rated) watts for each device that you want to plug into the generator. Look for a sticker or plate on each device or check your owner's manuals.

b. If your device or manual only shows amps and volts, watts can also be determined through a simple formula. (Amps x Volts = Watts)

c. List out these devices from highest starting watts to lowest starting watts as seen in Table 2 below.


Table 2

Example Devices Starting Watts Running Watts
Air compressor 2,000 1,000
Refrigerator 1,600 800
Microwave 0 1,000
Blender 850 400

2. To find the total running watts , add all of the running watts together from Table 2 .


1,000 + 800 + 1,000 + 400 = 3,200 total running watts


3. In Table 3 , shown below, the values from Table 2 are used to calculate the highest total starting watts required as devices are connected and running. This number represents the highest power requirement you will encounter as you connect all of your devices to the generator. To find this, add the starting watts of each new device you connect to the combined running watts of all connected devices . The highest of these numbers will be the total starting watts required . And again, remember to always connect devices in order from highest starting watts to lowest starting watts.


Table 3

Device Starting Watts Running Watts of All Connected Devices Total Starting Watts Required
1. Air compressor 2,000 + 0 (nothing connected) = 2,000
2. Refrigerator 1,600 + 1,000 (air compressor) = 2,600
3. Microwave 1,000* + 1,800 (air compressor + refrigerator) = 2,800
4. Blender 850 + 2,800 (air compressor + refrigerator + microwave) = 3,650

* Even though the microwave does not have starting watts listed, you have to account for the power needed to actually run it.


850 + 2,800 = 3,650 highest total starting watts required


In order to run all of these devices simultaneously, you would require a generator with at least 3,650 starting watts and 3,200 running watts.



H03654 Firman Dual Fuel Hybrid Portable Generator - Gas or Propane - Electric Start





Video of Firman 4,550-Watt Portable RV Generator - 3,650 Running Watts - Propane or Gas - Electric Start

Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.




Video Transcript for Review of Firman Generators - 4550 Watt Portable Duel Fuel Generator - FIR33VR

Hi, everybody. Andy here with etrailer.com. Let's take a look together at this Firman 4,550 watt portable dual fuel generator. Now this dual fuel generator can easily start and run a pair of 15,000 BTU RV air conditioners using gas or propane. And as you might know, when choosing a generator, you do need to match the generator's starting and running output with the electrical demands of the equipment that you want to power and operate. So I wanna point out, if you haven't already seen it on this product page, we have provided a really good writeup for you to help you to determine the type of generator that you're going to need depending on your power demand.

So make sure to take a look at that information as you are considering which generator to get, 'cause we wanna make sure that you get the generator that's gonna work just perfectly for you and your needs. Now this generator is equipped with a starting power output when using gas of 4,550 watts. When using propane, it's 4,100 watts. And then the running power output when used with gas is going to be 3,650 watts and with propane, 3,300 watts. This does feature an electrical start engine that's gonna start up with a push of a button.

And also, as you probably already saw, a recoil handle is going to let you pull start the engine when needed. And let me go over the features that this generator has and the things that are included. We do have, of course, our propane hose connector. Has a cap here that is going to protect this port when it's not in use. So here's our propane inlet right here, and then it does include this five foot long propane hose with regulator.

And then we have our fuel selector here. So when you switch it to the right, that's gonna be gas. And then when you bring it over to the left, that's gonna be propane. So, very easy to use. Then we have our engine start switch right here and then our CO alert carbon monoxide shutdown indicator light right there.

And then over here we have our three-in-one data minder, which is gonna show voltage, hertz and running hours. This is an indicator light right here. And then we have circuit breakers right there. And then we have coming down to our outlets, our 120 volt, 30 amp twist lock, ground terminal and then 120 volt, 30 amp RV outlet and then 120 volt, 20 amp duplex. And then we have, I think you probably saw it already, spark arrester right there. And this does feature Firman's single cylinder four-stroke overhead valve air cooled 208 CC engine. This has a continuous runtime at half load of 14 hours. And this clean running engine is going to meet CARB, CETL and EPA standards. Lemme give you an overhead look here. This does feature a five gallon steel gas tank. And this also not only has the cap here that you're gonna remove to fill it up with fuel, but it also has a a gas gauge as well so you know how much fuel you'll have left in the generator. And you might have been wondering about the noise level. A normal conversation is about 60 decibels measured at 25 feet away at 50% load in standard mode. This is gonna run about 67 decibels. So hopefully that kind of gives you an idea of the kind of noise to expect. It's not gonna be too terribly loud for you. This does feature eight inch flat freewheels. It's gonna give you easy mobility. And we do have our handle here with a really nice grip there. This is going to let you easily transport this on the wheels and it's just gonna drop down when you don't need it. So it's not gonna be in your way. And this includes quite a few other things as well. We have our battery here at the bottom, and then this does come with a bottle of engine oil and also a funnel to help you fill your oil up. Lemme bring that down here so you can see it. I have those items just sitting here on the top. And you'll fill your oil right here. Hopefully, you can see that right there. And then this does come with some tools, which is really pretty cool. Let me just pour it out of this pouch that's included. So you're going to get the spark plug wrench that you see right there. And then you're gonna get two open wrenches here, a 10 millimeter and 12 millimeter. And these tools can be used to connect the handle and the wheels and things like that. So it's pretty handy that it comes with these tools and it comes in this nice pouch here. So that is going to be included with this. And let me give you some measurements just so you have a good idea of the size. So looking at the overall length from end to end, we're sitting at about 25 3/4 inches long. And the overall width. And I am including the wheels. So the outside wheel to outside wheel, we're gonna be at about 21 3/4 inches wide. And then the overall height, about 21 5/8 inches tall. This weighs almost 120 pounds, about 119, 120 pounds. And just some final notes that I'm sure you're aware of. But gas generators obviously produce carbon monoxide, which is poisonous. So for your safety, you always wanna be sure to operate this gas-powered generator outside. And because this generator does not have a built-in inverter to control the electrical current, the voltage can fluctuate. So you wanna make sure that you don't plug in sensitive electronic devices such as your computer or television directly into the generator. Well, I think that's going to wrap up our brief overview today. I do hope that our time together was helpful for you. Again, my name is Andy, thank you for joining me.

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See what our Experts say about this Firman Generators


Info for this part was:

Employee Amanda M
Edited by:
Amanda M
Employee Andy C
Installed by:
Andy C
Employee Cody B
Written by:
Cody B

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