I have only had this unit installed a month but It heats very well and has had no troubles at all. Its been a very good unit since install. One piece of advice is to have a couple strong hands to help you with the install as the unit is very heavy. I own 2 smaller arctic king A/C units That's I have had for over a year and they have by far been the best A/C units I have ever owned. The keep meaning to there name as they produce very cold air. Overall arctic king makes some of the better units I have ran across and for a very reasonable price.
If you need further help or information please visit our Online Help Center