I am new to this so I could use some help. Many questions need answered please. how do I know if a trailer is a four season one. Most of the adds I have seen dont specify. What is the difference besides tank heaters? I will living in it as my standard home and could possibly face below zero days during the winter. Is there a special set up I should be looking for? Also where would one find skirting for one that is insulated? Is there a brand of trailer that I should avoid? I am looking for used trailers since a new one is out of the budjet. Is there something that can be added to an existing trailer to convert it to a for season if I cant find one? I will be looking for the next month or so. I am looking in the 28-34' range since My dodge is only a 3/4 ton diesel. Thanks for your help in advance!