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Portable Generators

Portable Generators

Portable generators are highly useful tools for homeowners and professionals alike. Homeowners use portable generators for powering outdoor activities and in emergency situations to keep essential appliances, like lights, heating, and refrigeration operational during power outages. Contractors rely on generators to keep job sites running smoothly, powering tools and equipment. Portable generators are typically powered by gasoline but some models are powered by propane. Dual fuel generators give you the option of using your choice of either gasoline or propane. Consumers have a wide range of power outputs and features to choose from when selecting a portable generator. Generally, selecting the desired output power is the first consideration. What tools or appliances will it be powered, and where and how often it will be used. Portability is subjective, you may need a wheeled cart or you may require liftability. Check out a small portable generator like this best-selling Powerhorse Generator

Recoil and electric start options are available. Electric start offers the greatest convenience, allowing you to start the generator with a simple push of a button. Some even include a remote fob for remote starting. Another consideration is the number of outlets included, which varies from model to model. 120 Volt and 240 Volts outlets are commonly available. Extra features include carbon monoxide sensors, circuit breaker protection, hour meters, and volt meters. Some portable generators include wheel kits, featuring pneumatic wheels and handles to make moving from one location to another easy over any terrain. Wheel kits are also sold separately for generators that do not include wheel kits. Northern Tool + Equipment carries a full selection of top-quality generators to meet every need and budget.

Be sure to check out the interactive Generator Wattage Calculator to figure out what size generator you need based on the equipment you will be using. Check out our Use a portable generator safely article. Also browse the Best Portable Generators list which reveals our customer's favorites.

NorthStar portable generator

Portable Generator Frequently Asked Questions:

How long will a portable generator run with a full tank, powering a typical load?
Most portable generators range in wattage from 3500–10,000 and feature fuel tanks ranging from 3 gallons to just over 8 gallons. The average full-tank runtime of a generator in this range is anywhere between 6 and 10 hours. Larger generators include larger tanks and typically run longer than smaller generators.
What types of fuel do portable generators use?
Unleaded gasoline, natural gas, vapor propane and liquid propane are the most common types of gas used by portable generators to produce power. Be sure to check the manufacturer’s recommendation for your portable generator.
What safety features do portable generators have?
An important safety feature to look for in a portable generator is a built-in carbon monoxide sensor that automatically shuts a generator down if dangerous levels of carbon monoxide are detected. This feature is lifesaving, especially if you use your generator in any kind of enclosed area, even if you have ventilation or a door or window cracked open. Carbon monoxide can build quickly, and it is deadly. Other important features to look for include a low oil sensor and an overload protection shutdown. In either case — an oil level that’s too low or a power overload — these features will automatically shut down your generator to prevent damage to it. If you use your generator daily, it should be wiped clean of dirt and debris daily. If you use your generator only occasionally, wipe away any dirt and debris before each use.
What are some ways to reduce noise on portable generators?

There are several methods, including the following:

  • Build a generator enclosure with ventilation. If you use other loud equipment, such as an air compressor, be sure to build an enclosure big enough for the largest item, so you can get double duty out of your enclosure.
  • Buy a zombie box. Zombie boxes are often portable and collapsible, so they’re perfect for taking on camping trips.
  • Muffle your generator with plywood. Simply place a piece of plywood against each side of your generator. Set the top of the plywood against the top of the generator and create an A-frame of space on each side of the generator.
  • Because the exhaust on your generator is the loudest, position your generator so the exhaust is away from your house.
  • Use a long extension cord, so you can position your generator behind a shed or garage, which will serve to muffle the noise.
  • Place your generator inside a shed with acoustic panels against each wall of the shed to prevent echoing. Also be sure there is plenty of venting in the shed to prevent fume buildup.
  • Position your generator on a thick, sound-absorbing mat to prevent the vibration that occurs when a generator is set on a hard floor.
  • Replace the generator’s muffler if it’s faulty.
  • Install a generator silencer.
Note: Inverter generators run more quietly than standard portable generators, but they may not be available in the wattage you’re looking for. Still, an inverter generator is worth looking into.
What are some tips for using a portable generator in extreme low temperatures?

Important considerations for using a portable generator in extreme temperatures or in harsh weather include the following:

  • Be sure your battery is in good working order and no older than 3 years old.
  • Be sure your fuel is not too cold. Fuel should be stored in moderate temperatures. You may need to use an additive or stabilizer to operate your generator in extreme conditions.
  • Be sure to use either an engine coolant heater to keep your generator’s engine near 100°F. You might also be able to use an immersion or space heater, depending on the housing on your generator.
  • Be sure not to operate your generator uncovered in snow and rain. If your generator is not grounded it could cause electrocution. Your generator should be enclosed in a canopy structure to prevent rain or snow from hitting it.
  • Change the plugs and filters on your generator at least every 200 hours of use.
  • If you plan to store your generator for more than a month, be sure to empty the fuel tank. First, add some high-quality gas stabilizer to the fuel in your tank. Next, run the engine for roughly 15 minutes and turn it off. After the engine cools, start it and run it until your generator is out of fuel. If there seems to be too much fuel in the tank to run it dry, you can use a non-conductive siphon to empty your generator’s tank.