I did the JR Refrigeration 120V conversion with the help of a friend. If you do it after getting the old unit out make sure you dry fit the new unit to make sure it fits into place good. You may have to do some extra trimming of the styrofoam to get it in place good. Then take it out and spray the great foam and reset it and finish the job per the directions. I tested mine out in the July Texas heat for a month and it worked great and my door seals are not perfect either. It is super quite also. I am sure you will be happy with the conversion. Feel free to contact me if you have any questions.