There have been several threads on this subject, including significant problems with proheat. Short version, if the installation isn't perfect it won't keep you cool in the summer. Do a search on proheat and check them all out. Also take a look at Blackrock which has a 1000 hour service interval, Willis which uses the truck systems so you have 2 a/c and heat systems running instead of just 1 and maybe Rigmaster which has a large dealer network including a lot of KW dealers. In a few months Caterpillar will have a system out that looks pretty good and Carrier has a new system that just came out a few weeks ago. Good luck.
Leo Bricker, owner trucks 3034, 4958
OOIDA 677319
73's K5LDB
EO Forum Moderator 1+ Years of Service
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