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Understand Wattage

Power Required

Running Watts

‘Running Watts’ refers to the power required to continuously run an electrical device after it has already started.

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Initial Surge

Starting Watts

‘Starting Watts’ refers to the momentary surge of power required to start motor-driven products like a refrigerator. You may need to estimate this by using the following equation if Running & Starting Watts are not known: WATTS=VOLTS x AMPS.

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Determine Your Needs

Your generator should produce at least the calculated Total Starting Watts.

  1. 1
    Determine Devices

    Determine all the devices you need to run simultaneously. Record the required Running & Additional Starting Watts of all the devices selected.

  2. 2
    Add All The Watts

    Add the Running Watts of all items selected to be run simultaneously and record that number as your Total Running Watts.

  3. 3
    Identify Highest Watts

    Identify the device with the Highest Additional Starting Watts requirement and record that number.

  4. 4
    Calculate Total Watts

    Add your Total Running Watts to your Highest Additional Starting Watts. This is your Total Starting Watts required to power your devices!

    5. SEE COMMON DEVICE WATTAGE

Explore Generators

Now that you know your total starting watts, it's time to choose a generator that’s just right for you.

Hybrid Series

Powerful and versatile, the Hybrid Series portable generator delivers quality power on demand. Best used for emergency power, job sites, farms, large RV’s, and buses.

Watt range: From 7500 to 9400 watts

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BEST SELLER

Tri Fuel Portable Generator 11400W Electric Start 120V/240V with CO Alert

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best seller

Tri Fuel Portable Generator 9400W Electric Start 120/240V with CO Alert

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Performance Series

Soulfully combining convenience and power, the Performance Series offers long-lasting, efficient power. Excellent for camping, work-site, and emergency power.

Watt range: From 9400 to 7500 Running watts 

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Gas Portable Generator 15000W Electric Start 120/240V with CO Alert

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NEW Arrival

Gas Portable Generator 4450W Recoil Start 120V with CO alert

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Whisper Series

The Whisper Series provides a clean, portable and efficient power source for any circumstance. Best used for camping and tailgates.

Watt range: From 1000 to 5000 Running watts

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NEW ARRIVAL

Dual Fuel Open Frame Inverter 4400W Electric Start with CO ALERT

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BEST SELLER

Dual Fuel Inverter Portable Generator 4000W Electric Start with CO ALERT

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Shop By Activity

Shop generators categorized by intended activity.
The FIRMAN Power Equipment TRI FUEL PORTABLE GENERATOR 15000W ELECTRIC START 120/240V WITH CO ALERT, equipped with a V-Twin engine, is set up outdoors, supplying 15000 watts of power to a workstation where a person is cutting wood with a saw.

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A FIRMAN Power Equipment Refurbished Dual Fuel Inverter 4000W W/ Electric Start generator positioned in front of a camper van with its side and back doors open, parked in an outdoor area.

RV Camping

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A person wearing a black shirt and tan pants wheels a FIRMAN Power Equipment Gas Inverter Portable Generator 6650/5300 Watt 120/240V CO Alert along a dirt path in an outdoor, wooded area.

TENT CAMPING

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Outdoor concert with a musician playing guitar and singing, audience seated in chairs, and a FIRMAN Power Equipment Zero E Portable Expandable Power Station nearby in a grassy field.

TAILGATING

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Discover Guides And Tips

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General Maintenance
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