I would like to hear from the people who run /use their argo in cold weather ,if they have a heater kit .I have been looking at getting a newer Hdi argo and would be using it in the winter,so I would get it with a wind shield and a convertible as well.I been told that if you get a heater kit you need an alternator kit as well to run the added electrical load of the fan;but the newer HDI argos have a 20/50 charging system on them /built in to them,so would you still need the extra alternator kit?