There are some that are getting downright cheap
I have one on the docks in China waiting for a slow boat
I have one in my other room
This is the one in the other room
It is currently ZERO per the display. this has areas. the big area is zero (Or whatever I set it at) the small area in the rear is warmer (*Above freezing for the most part)
Power draw is less than 50 watts
I had an ENGEL (much more expensive back in 2005) same size worked well up till this summer 36 watts. IT was like 800 bucks as I recall.
The one in China is supposed to come with solar panels. I'm starting to go at lest partially solar here.