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Firman H03654 - 3650/4550W Dual Fuel Generator With Electric Start
The Firman H03654 is a portable open frame dual fuel generator with a rated wattage of 3,650 W and a starting wattage of 4,550 W. (Read full specs)
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Description
Zoom on the Firman H03654
In a few words, the Firman H03654 is a portable generator perfectly suited for:
- RV travellers who wish to upgrade their experience to another level
- People occasionally participating in outdoor fairs, festivals or events
- Homeowners who want to be sure of their ability to power their fridges, cooking tools, heating and lighting equipment during power failures
The subsequent sections will explore in detail its power characteristics, the diverse outlets it provides, its overall portability, and the supplementary features it offers.
Power & Run Time
With its dual-fuel technology, the powerful and versatile Firman H03654 provides an output of 120V. While gasoline-powered, it gives a running wattage of 3,650W along with a peak wattage of 4,550W. While propane-powered, it provides 3,300 rated watts and 4,100 starting watts.
The generator features a standard recoil pull-rope starting mechanism and also a straightforward and intuitive electric starter (battery included). It is rated for a noise of 67 dBA (less noisy than a normal conversation).
The running time of the H03654, with its 5 gallons fuel capacity, can reach around 14 hours at 50% load on a full tank of gasoline (fuel consumption around 0.36 GPH). With propane, it can reach around 11 hours (on a 20 lbs tank - propane consumption around 0.43 GPH).
Given the H03654's high Total Harmonic Distortion (THD) of less than 25%, it is advisable to avoid using it to power sensitive electronic devices.
Outlets
The control panel provides the upcoming 4 AC outlets:
With its TT-30R receptacle (TT standing for 'Travel Trailer'), this Firman generator is RV Ready, perfectly suited for powering recreational vehicles.
Portability
Measuring L24.7 x W21.8 x H21.6 in, the classic open frame construction of the Firman H03654 provides stability while enabling convenient maintenance access to components and adequate air cooling. The device has been designed for tough environments and demanding outdoor use.
Despite its weight of 119.5 lbs, the generator is still considered 'portable,' meaning it is movable, although its heftiness may restrict portability in certain environments or require additional considerations for transportation and setup. However, the constrained maneuverability is addressed with the assistance of its wheel kit (⌀8") and its folding handle, allowing for easy shifting once the generator is placed on the ground.
Features
The H03654's control panel
The H03654's control center features a convenient meter, displaying voltage, frequency, and lifetime hours information to aid you with the monitoring of 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 automatic low oil shut-off and an overload protection (circuit breaker), allowing you to use it with a peace of mind.
The H03654 also benefits from Firman’s CO Alert carbon monoxide shutdown, which automatically shuts down the engine when harmful levels of carbon monoxide accumulate around the generator or a CO Alert fault occurs.
Besides the classic documentation and an owner's manual (opens in a new tab) to get you promptly started, the Firman H03654 also comes with some accessories: funnel, tool kit, propane hose and oil are included.
The Firman H03654 versus other generators
The following charts are provided to give you an idea of how some of the key specs of the Firman H03654 compare to dual fuel generators of similar power (between 3500 and 4500 W).
- With its weight of 119.5 lbs, the Firman H03654 is one of the heavier dual fuel generators in the 3500-4500 rated wattage category. If weight is an important consideration for you, the Pulsar PGX5250BiXCO stands out as one of the top contenders in this power category, with a dry weight of 64 pounds.
- At 67 dBA, this generator's noise rating is in line with the expected average for devices within its type and power category. If noise emissions are important to you, one of the least noisy generators of this power range is the Westinghouse iGen5000DF with only 52 dBA.
- At 50% load, the H03654 boasts a higher run time than most similarly powerful dual fuel products, reaching around 14 hours. If prolonged run time is essential to your needs, you could consider the Westinghouse iGen5000DF, which offers one of the highest autonomy among devices with similar power output, lasting around 15 hours.
- Run time is a key metric, but it's dependent on the generator's fuel capacity. Therefore, discussing fuel efficiency is necessary to get the full picture. This generator has an estimated fuel consumption of roughly 0.36 GPH (gallon per hour) at a 50% load, rendering it somewhat average compared to devices of a similar output. If you are concerned with gasoline efficiency, having a fuel consumption of just 0.23 GPH, the Westinghouse iGen5000DF is a device you could look out for.
Price comparison
As you can see from these interactive charts, when compared to other 3500-4500W dual fuel generators, the Firman H03654 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
- In the expected price range
- Dual fuel
- CO Alert technology
- Several accessories included
- RV Ready
- Electric start
- High run time
- Acceptable noise (67 dBA)
- Decent fuel efficiency
- No remote start
- On the heavy side (119.5 lbs)
Do you own the Firman H03654 and agree (or disagree) with these strengths and weaknesses?
Let us know and write your own review.
Features and Specifications
| Inverter | No |
|---|---|
| Parallel capable | No |
| RV ready | Yes |
| Fuel | Dual Fuel (gasoline/propane) |
| Engine | 208 cc Firman Max-Pro Series OHV 4-stroke, cast iron sleeve |
| Starting system | Recoil, Electric |
| Warranty | 3 years |
| Voltage | AC: 120V 60 Hz |
| Gasoline | Propane | |
|---|---|---|
| Running watts | 3,650 W | 3,300 W |
| Starting watts | 4,550 W | 4,100 W |
| Running amps | 30.4 amps | 27.5 amps |
| Peak amps | 37.9 amps | 34.2 amps |
| Run time @50% load | 14 h | 11 h |
| Run time @25% load | Unknown | Unknown |
| GFCI outlets | No |
|---|---|
| Covered outlets | Yes |
| Automatic Voltage Regulation | Yes |
| AC outlets |
|
| DC outlets | No |
| Data center | VFT |
| Indicators | No |
| Fuel tank | Steel, 5 gal |
| Fuel gauge | Yes |
| Weight | 119.5 lbs |
|---|---|
| Approx. dimensions (L x W x H) | 24.7 x 21.8 x 21.6 in |
| Noise (lower limit) | 67 dBA |
| THD | < 25% |
| Compliance | EPA, ANSI/PGMA G300-2023 |
| Security | Low oil and overload protection, CO monitoring |
| Spark arrestor | Yes |
| Neutral | Floating |
| Accessories included | Oil, funnel, tool kit, propane hose, battery, and wheel kit |
| Country of origin | China |
| Series | Hybrid |
| UPC | 840876136546 |
We've taken extra care to research and verify each of the specifications above. That said, occasional mistakes or omissions are still possible. If you spot any missing or inaccurate information, feel free to suggest a correction so we can address it.
About FIRMAN Power Equipment
Founded in 1999, Firman Power Equipment is a company with a short, but established history in the power equipment industry. Based in Arizona, the company offers an immense range of products, including power tools, automotive equipment, storage utilities, work wear, but most importantly, a wide selection of generators of all sizes, designs and outputs. Interestingly, Firman is a wholly owned subsidiary of the China National Machinery Industry Corporation - a somewhat well renowned company in China and acts as a de facto distributor of their products in the US.
Warranty Information
The Firman H03654 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 Firman generators, please consult Firman's warranty policies (opens in a new tab). Alternatively, you can also contact their Customer Support: 1-844-FIRMAN1 (844-347-6261).
Questions & Answers
What can it power?
| Item | Running Watts | Starting Watts | |
|---|---|---|---|
| At home | Dish washer | 1500 | 3000 |
| Refrigerator (energy star) | 192 | 1192 | |
| Vacuum cleaner | 1075 | 1175 | |
| Radio | 100 | 100 | |
| Pair of small speakers | 45 | 45 | |
| Total | 2912 W | 4412 W | |
| For camping | RV AC (11,000 BTU) | 1010 | 1600 |
| RV refrigerator | 180 | 600 | |
| Electric grill | 1650 | 1650 | |
| Set of 5 LED light bulbs | 55 | 55 | |
| Total | 2895 W | 3485 W | |
| For work | Table saw | 1800 | 4500 |
| Total | 1800 W | 4500 W |
How much oil does it take? (Asked December 14, 2019)
The oil capacity is 20.3 oz.
When connecting this generator to propane with the supplied hose,.....do I just connect the propane tank with the hose to the generator? Is the propane regulator built into the generator? Or do I need to buy a separate regulator? Thank you. (Asked December 10, 2020)
The regulator is included with the LPG hose.
Couldn't find the right answer for you? Ask your own question.
