Originally Posted by Oaklevel
Just my opinion you will eventually fry your ACs compressor on a 15A circuit...... Sure it will work now but you will be on the forum later saying our AC needed replacing & do not understand why...........
Why would you say that? If wattage/amp pull is low enough, and with the cords he's using should only cause a less than 4 volt drop, will be fine. He can also verify voltage drop with a meter. The only thing that will kill his AC is under voltage.
He could use a 10 amp circuit, sure he may kick the breaker but as long as voltage drop is OK (wire size/length) no way it would damage.