A transfer switch is like a mini circuit breaker panel that allows you to draw electricity from your generator instead of from the power company. An electrician can easily install it next to your breaker panel, and you pick which circuits you want to run through it.
On its own, a generator powers units that use a standard plug. But the transfer switch can power anything that's hardwired into the circuit panel.
Consumer Reports said to keep in mind that the generator must be at least 5,000 watts to easily connect to a transfer switch and to handle the load of several appliances. And you want to make sure to get a generator that's large enough to power all your essentials, but still the smallest model you can get away with because you'll save a lot on gas.
Plan to spend between $200 and $400 for an electrician to install the switch, plus upwards of $300 for parts. You'll lose some of the convenience of a transfer switch but save hundreds on parts using an interlock device installed directly on your circuit panel.
When the power goes out, you flip off the main switch with power from the street, slide the little interlock device up, and flip on the circuit breaker, which allows the generator to power any of the circuits on the main panel.
Consumer Reports also says to avoid exposure to deadly carbon monoxide and never run a generator in an enclosed space.
Always place the generator at least 20 feet from the house, with the exhaust pointed away from the house.
Having a safe way to power your home helps you feel safe.