This unit is very powerful, and hence it requires a 20 amp breaker, at least 12 gauge wire, and a special outlet. I fortunately could install an outlet myself, but if you don’t have one by your window this larger model is useless to you. At the time of purchase the web page here said it needed a parallel NEMA 5-15 plug and fortunately it was later updated. If you see answers in the Q & A section saying 15 amp they are wrong. The cord for the unit itself has 12 gauge wire in it. I haven’t installed yet but did remove from the box to test and was pleased with how quiet it was (without even having the compressor side outside of the house).