I have gone back and forth between the Wave heaters and the Buddy heaters.I used the Wave 3 in my prior lance truck camper mounted on the step to the bunk that the water tank was in.
I did not want to plumb into my 30ft trailer because all the plumbing was in the wrong spots so I went mobile with the Wave 8 on legs.It worked good.

I also use the Wave 8 in my house when the temps just are not cold enough for the wood stove.I still have the Wave 8 but it is to big for my lance pickup camper.

I used both the Wave 8 and Big buddy in my 21ft Class C because it had the room.

I put the little buddy or now called the portable buddy in my currant lance camper but I do not have a picture of it yet..Fits perfect wnd I am able to move it around to different locations.