bullfrog said:
Maybe someone that has used a 12 volt mattress heater will give some input but there is a thread if you search.
I bought a 12v heated blanket and tested it out for one night. If going the route of a heated blanket i suggest one with a thermostat to shut it off. Mine does not have and it drained my battery badly. Ofc I could have just shut it off but I was enjoying the warmth and assumed the electrical draw was minimal..boy howdy was I surprised when the battery was down to 11.9 yikes!
I have also subsequently read/heard that a heated mattress pad is better than a blanket... I think for now I will forego the electical heating pads/blankets until I have a much more substantial power source.
I am currently using shore power for an electric heater. I am likely not going to be leaving the Idaho/ Wa border until closer to Feb.. and so I am getting the full on experience of a inland NW winter inside the van. I do also have a journey 3 catalytic heater which is pretty nifty but not nearly as convenient as electricity
Last night it was 22 and the day before was 20 outside...brrr...
I did a not so perfect job of insulating and sealing every tiny gap.. I did not think it would matter much.. I was wrong.
The insulation thickness is fine but those dang air gaps that are causing cold air to seep in is a problem.
I have about a 20 degree difference from about 12 foot off the floor. 70-80 up top and 50ish when I set my thermometer on the floor.
I sit with my feet elevated as much as possible and have snug slippers and woolies on the feet.
Eliminating drafts is going to be the very best way to keep a nice toasty interior. Not sure how good insulation is going to be if you have a 5 knots of 20 degree air channeling through door trim.
I also put fabric over all the wall paneling and I am now a huge fan of nice soft snuggly walls instead of cold wood. paneling.
After a winter here I should feel bold enough to advance onto Alaska winters!