I have one and they are nice for the house but I don't know about warming my tm with it in the winter. They are great when it is around 40-50 but I wouldn't trust one to protect my heat ex when the weather is freezing outside.
the edenpure only does not heat objects, such as furniture, truckmount and such its infrared. And they are horrible, and way to expensive. By the way they do use alot of electricity.
But if you find a good brand let me know because I am in the same boat as you. I need to find a good heater for my van as well. Its funny i looked at the oreck edenpure today at the oreck store. they do look nice though. lol
If it's the one Paul Harvey endorsed, total scam. 110% total scam. Why that guy lent his name to that POS product is beyond me. Google this thing & read all the complaints.