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Before you hit “buy,” check out these 152 specs & features — including real-world favorites like general information, power & electrical output, engine & fuel system & performance & efficiency. It’s the kind of detail pros care about.
Eco Mode Available Automatically adjusts engine speed based on power demand to improve fuel efficiency, reduce noise, and extend runtime during low-load operation.
A fast snapshot of the Firman WT05571, covering its standout specification and what you can expect right out of the box.
Firman WT05571
Firman WT05571 is a specialized 5500W Tri-Fuel generator featuring a wide-grip handle and flat-free tires, offering easy mobility and versatile fuel options for rugged outdoor environments.
Specifications & Facts 152
Specs measured. Drama avoided.
Looking at tools shouldn’t feel like reading a puzzle. We made it simple: 152 spec highlights from the Firman WT05571 — led by general information, power & electrical output, engine & fuel system & performance & efficiency — so you can decide fast.
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Firman WT05571 Number of Power Outlets
How many outlets are available?
0 Firman WT05571 0 Votes 7
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Counts the total available electrical outlets on the generator.
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Firman WT05571 Outlet Types
What outlet types are included?
0 Firman WT05571 0 Votes 120V, 240V, Twist Lock
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Describes the types of electrical outlets supported.
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Firman WT05571 DC Output
Does it support DC output?
Yes 0Votes Firman WT05571
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Indicates whether the generator provides DC power output.
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Firman WT05571 USB Output
Are USB outputs included?
No 0Votes Firman WT05571
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Shows if USB ports are available for small devices.
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Firman WT05571 Parallel Capability
Can it run in parallel?
No 0Votes Firman WT05571
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Allows multiple generators to be connected together for more power.
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Firman WT05571 Automatic Voltage Regulation
Does it regulate voltage automatically?
Yes 0Votes Firman WT05571
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Maintains consistent voltage under varying loads.
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Firman WT05571 Power Factor
What is the power factor level?
0 Firman WT05571 0 Votes Standard
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Indicates the efficiency of power delivery from the generator to connected loads, expressed as a qualitative performance level rather than a numeric ratio.
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Firman WT05571 Continuous Load Capacity
What continuous load can it handle?
80 % 0Votes
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The percentage of load the generator can handle continuously.
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Firman WT05571 Surge Handling Capability
How much surge can it handle?
6,850 Watt 0Votes
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Describes how well the generator manages sudden power surges.
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Firman WT05571 Power Stability Rating
How stable is the power output?
0 Firman WT05571 0 Votes Standard
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Qualitative assessment of output consistency.
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Engine & Fuel System 14
Firman WT05571 Fuel Injection Type
Is it carbureted or fuel injected?
0 Firman WT05571 0 Votes Carbureted
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Firman WT05571
The engine utilizes a carbureted fuel injection type for efficient performance.
Indicates how fuel is delivered to the engine.
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Firman WT05571 Displacement
What is the engine displacement?
322 cc 0Votes
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Measures the engine’s cylinder volume, influencing power potential.
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Firman WT05571 Fuel Tank Capacity
How large is the fuel tank?
5.3 gal 0Votes
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Indicates how much fuel the tank can hold.
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Firman WT05571 Low Oil Shutdown
Does it have low-oil shutdown?
Yes 0Votes Firman WT05571
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Automatically shuts down the engine if oil is low.
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Firman WT05571 Engine Type
What type of engine does it use?
0 Firman WT05571 0 Votes OHV
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Defines the mechanical engine design used to generate power.
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Firman WT05571 Engine Brand Type
What engine brand type is used?
0 Firman WT05571 0 Votes OEM
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Indicates whether the engine is in-house or externally sourced.
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Firman WT05571 Number of Cylinders
How many cylinders does it have?
0 Firman WT05571 0 Votes 1
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States how many cylinders the engine has.
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Firman WT05571 Fuel Type
What fuel does it use?
0 Firman WT05571 0 Votes Gasoline, Propane, Natural Gas
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Specifies the type of fuel the generator operates on.
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Firman WT05571 Fuel Consumption Rate
How much fuel does it consume?
0.75 gal 0Votes
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Shows how quickly fuel is consumed during operation.
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Firman WT05571 Runtime Performance
How is the runtime performance?
0 Firman WT05571 0 Votes Long
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Describes the generator’s overall operating duration on a full fuel tank across typical load conditions, expressed as a qualitative runtime level.
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Firman WT05571 Carburetor Type
What carburetor type is included?
0 Firman WT05571 0 Votes Standard
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Describes the carburetor configuration used.
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Firman WT05571 Oil Type
What oil type is recommended?
0 Firman WT05571 0 Votes SAE 10W-30
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Specifies the recommended engine oil type.
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Firman WT05571 Oil Capacity
How much oil does it hold?
1.1 qt 0Votes
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Shows how much oil the engine requires.
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Firman WT05571 Fuel Gauge
Is there a fuel gauge?
Yes 0Votes Firman WT05571
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Displays the current fuel level in the tank.
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Performance & Efficiency 13
Firman WT05571 Voltage Stability Under Load
How stable is voltage under load?
0 Firman WT05571 0 Votes Good
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Firman WT05571
The voltage stability under load is rated as good, ensuring reliable power delivery.
Indicates how well voltage remains steady under varying loads.
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Firman WT05571 Eco Mode
Does the generator have eco mode?
Yes 0Votes Firman WT05571
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Automatically adjusts engine speed based on power demand to improve fuel efficiency, reduce noise, and extend runtime during low-load operation.
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Firman WT05571 Fuel Efficiency Rating
How fuel-efficient is the generator?
0 Firman WT05571 0 Votes Moderate
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Overall assessment of how efficiently fuel is converted into power.
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Firman WT05571 Load Response Time
How fast does it respond to load changes?
1 sec 0Votes
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Time taken to stabilize output when load changes suddenly.
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Firman WT05571 Frequency Stability
How stable is the frequency output?
0 Firman WT05571 0 Votes Stable
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Measures consistency of output frequency during operation.
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Firman WT05571 Power to Weight Ratio
What is the power-to-weight ratio?
61 Watt 0Votes
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Compares power output relative to generator weight.
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Firman WT05571 Maximum Continuous Operation Time
How long can it run continuously?
12 hours 0Votes
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Longest duration the generator can run continuously.
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Firman WT05571 Thermal Efficiency
What is the thermal efficiency?
30 % 0Votes
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Indicates how well heat energy is converted into mechanical power.
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Firman WT05571 Energy Conversion Type
What energy conversion type is used?
0 Firman WT05571 0 Votes Electromechanical
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Describes how energy is converted into electricity.
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Firman WT05571 Overload Recovery Time
How quickly does it recover from overload?
2 sec 0Votes
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Time required to recover normal output after overload.
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Firman WT05571 Start Reliability Rating
How reliable is starting?
0 Firman WT05571 0 Votes Excellent
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Likelihood of successful starts under normal conditions.
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Firman WT05571 Cold Start Performance
How does it perform in cold starts?
0 Firman WT05571 0 Votes Standard
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Indicates ease of starting in low temperatures.
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Firman WT05571 Altitude Performance Rating
How does it perform at altitude?
0 Firman WT05571 0 Votes Sea Level
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Describes performance effectiveness at higher elevations.
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Noise & Emissions 11
Firman WT05571 CO Auto Shutdown
Does it shut down for CO safety?
Yes 0Votes Firman WT05571
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Firman WT05571
It is equipped with a carbon monoxide auto shutdown feature for enhanced safety.
Automatically shuts down if CO reaches unsafe levels.
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Firman WT05571 Emission Control System
What emission control system is used?
0 Firman WT05571 0 Votes Catalytic Converter
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Firman WT05571
This generator is equipped with a catalytic converter as part of its emission control system.
Describes systems used to reduce emissions.
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Firman WT05571 Noise Level
What is the noise level of the generator?
67 dB 0Votes
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Measures the generator’s operating noise output in decibels, representing how loud the unit is during normal operation.
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Firman WT05571 Sound Insulation Type
What sound insulation is used?
0 Firman WT05571 0 Votes None
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Describes built-in noise dampening materials or design.
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Firman WT05571 Muffler Type
What type of muffler does it have?
0 Firman WT05571 0 Votes Standard
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Identifies the exhaust muffler design.
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Firman WT05571 Emission Compliance
Is it emission compliant?
0 Firman WT05571 0 Votes EPA, CARB
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Indicates regulatory emission standards met.
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Firman WT05571 Exhaust Orientation
Where is the exhaust directed?
0 Firman WT05571 0 Votes Side
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Shows the direction exhaust gases are expelled.
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Firman WT05571 Carbon Monoxide Detection
Does it detect carbon monoxide?
Yes 0Votes Firman WT05571
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Detects dangerous CO levels during operation.
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Firman WT05571 Smoke Level Rating
How much smoke does it produce?
0 Firman WT05571 0 Votes Low
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Qualitative measure of visible exhaust smoke.
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Firman WT05571 Environmental Compliance
What environmental rules does it meet?
0 Firman WT05571 0 Votes Federal
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Indicates level of environmental regulation compliance.
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Firman WT05571 Indoor Use Approval
Is it approved for indoor use?
No 0Votes Firman WT05571
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Indicates if the generator is approved for indoor use.
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Dimensions & Weight 13
Firman WT05571 Transport Orientation
How should it be transported?
0 Firman WT05571 0 Votes Upright
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Firman WT05571
The transport orientation for this generator is upright, making it easier to move and store.
Specifies the safe orientation during transport.
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Firman WT05571 Storage Position
How should it be stored?
0 Firman WT05571 0 Votes Upright
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Firman WT05571
The recommended storage position for this generator is upright.
Indicates recommended position for storage.
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Firman WT05571 Handle Type
What type of handle does it have?
0 Firman WT05571 0 Votes Telescoping
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Describes the handle design for moving the generator.
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Firman WT05571 Depth
What is the depth of the generator?
21.3 inch 0Votes
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Measures the front-to-back depth of the generator.
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Firman WT05571 Height
What is the height of the generator?
22.6 inch 0Votes
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Measures the overall height of the generator.
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Firman WT05571 Weight
How much does the generator weigh?
131.4 lbs 0Votes
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Indicates how heavy the generator is without fuel.
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Firman WT05571 Width
What is the width of the generator?
27 inch 0Votes
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Measures the overall width of the generator body.
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Firman WT05571 Wheel Diameter
What is the wheel diameter?
10 inch 0Votes
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Size of wheels used for transport.
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Firman WT05571 Ground Clearance
What is the ground clearance?
4 inch 0Votes
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Distance between the base and ground surface.
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Firman WT05571 Footprint Area
How much floor space does it need?
4.88 sq ft 0Votes
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Total ground area occupied by the generator.
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Firman WT05571 Center of Gravity Design
How stable is the generator design?
0 Firman WT05571 0 Votes Standard
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Supermod 
Moderator 
