I ran romex to a junction box on the wall nest to the unit, and ran an 'armored cable' hanging from the box to the unit. (conduit is not required in a garage in my area) Had to buy 25' of the right armored cable to use 4'. Gave the rest away. My unit specified solid core wire, which ruled out other options like 'appliance whips'. Also, some areas want a cutoff switch next to the unit. In my case, if the unit is in a line of sight of the breaker box, a switch in not required.