Currently, none of our models come equipped with a heater or an air-conditioner.
The insulation we use within the body of the trailer has a very good R-value to weight-ratio. In other words, our cabins stay very warm in the winter, and nice and cool in the summers, without weighing down the trailer. You'll be surprised how comfortable the cabin can be with the natural heat of 1-2 people.
We would recommend getting a quality electric blanket that plugs into a duplex outlet (110v). 12V socket, or USB connection. .
TDA, FT, and FTA all get a duplex outlet included in the cabin as apart of all of the configurations.
DoDrop and DoDrop ALPHA, with the 2 types of electrical systems we offer, would be best suited for an electric blanket that is USB or 12V.