Something else is that if you tell an electrician that you want to plug a generator into your house he will probably not wire it up for you. Not without a very expensive power transfer box. The reason is that if you do not turn off the main breaker to the house first and start your generator you will be sending power back out through the whole neighborhood. If a lineman is out there he could get zapped. More likely you will be trying to power up the whole neighborhood and your little generator will just drop to its’ knees and die.
You could just tell him you want to plug in a 220V grinder you picked up. That it will be for a 30 amp service with a locking type plug. That is the kind you plug in and turn to keep them from falling out. But that would be wrong. Terribly, terribly wrong.
BUT ALWAYS REMBER. The FIRST thing you do when hooking up your generator is kill the main breaker to the house. That is normally the top one in the panel located in the center. And the last thing you do when shutting down, after you have disconnected your generator, is turn that breaker back on. If you switch it on and your gen is still plugged in you will fry it right there.
If you have the money to spend Homedepo and others have a very nice setup they can install for around $2,500, last time I looked, that runs on natural gas and will automatically start up and put itself on the line when the grid goes down. Then disconnect and shut down by itself when power is restored. Very cool. I have lusted after one for some time but have never gotten one.