The manual indicates i should have a wall outlet mounted way up at the top of the unit. I dont have one (who does ?? ) and i dont think i want to get one. I dont like extension cords either. Can i just buy an after-market appliance replacement cord and put it on in place of the original one ? I could then run the cord down to an outlet right below the unit . If so , what specs am i looking at for the replacement cord ? There are different gauges of cord, etc. Thanks for looking ....