Originally Posted By: Schmoe
Another thing to remember is that if your using those orange extension cords, your going to lose some efficiency. What I and a lot of other neighbors have done during power outages in ice storms and tornadoes, is akin to the "suicide" cord, but with a little better knowledge. Take the 230 volt circular plug and get some good quality 8/3 or 10/4 type of electrical cord. Where the AC compressor is, there is (well, in our neighborhood and probably code requirement) an outside 60 amp circruit breaker. Once you've connected the wires to the plug, take the other end and connect it to the AC circuit breaker (SHUT THE MAIN OFF FIRST) and then you can backfeed to the house. You'll have to know what breaker does what and only turn on the ones you absolutely need like the refrigerator, freezer, some wall sockets, etc. etc. Works well.
Works well? It may but it's illegal.
Do yourself and the lineman (lineperson?) a favor and get a real transfer switch. They aren't that expensive. Look at it this way, you may know what breakers to flip but what if you're not home and the kids decide to "do what daddy does?"