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How to use a portable generator.
How to use a portable generator.
A portable generator basically converts the energy from gasoline (you can also use diesel or propane) into electricity. Peak Power Tools recommends using at least a 5,000-watt generator (starting around $500) for home emergency use. It will provide ample power to run a refrigerator, furnace fan, sump pump and multiple lights for 6-8 hours on a single tank of gas.
Extension Cords
Tthe most common way to use a portable generator is to place it outdoors, then run extension cords through an open window or door to the chosen appliances. This approach works well for smaller generators because you can plug in only one or two items.
Be sure to use appropriately sized power cords to carry the electric load, typically, the thicker the cord, the more electricity it can carry.
Extension cords have several drawbacks. First, most extension cords can't be plugged into a furnace, well pump or ceiling-light fixture. If the extension cords are too long, the resulting power drop may damage the generator and appliances. And, if they are placed under rugs or carpets, heat can buildup and spark a fire.
Transfer Switch
For safety's sake we recommend hiring a licensed electrician to install a transfer switch that redistributes power from the generator to the home's circuit box.
The transfer switch (around $150-$300) reduces the need for multiple extension cords running from the generator to specific appliances, and it eliminates the risk of electrical "back feed" injuring utility workers working on downed power lines.
It is installed beside the main electrical panel, and then it's connected to the circuits you'll want running during a blackout. When the power goes out, you simply crank up the generator and run a single extension cord from it to the transfer switch.
Once the generator is running, you can choose which appliances and circuits you want to use by simply flipping the switches.
It's important to keep track of what's being powered because the transfer switch is often wired into more circuits than the generator can handle all at once.
A typical transfer-switch installation will take less than two hours and cost around $100-$200 but it's an investment that will be fully appreciated the next time the power goes out.
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