Hi, so I,ve bought a mercedes sprinter that has some conversions already. alot of stuf to play with and work out how it works. 1st thing on my list tho is a combined heater and air conditioner. We have dogs and it is really important that they are able to stay in the vehicle when we visit friends and family. I have seen the blizzard although I have to say it is a little out of our price range. Anyone have any good deas that may be more cost effective.