or maybe someone can give me some insight.. I have a wall mounted propane heater. I got the hook up kit which I thought I could run through the wall out to the tank hookup (which I don't have yet). However the warning label says do not conceal or run within the wall. By the looks from the lame diagram on the back of the package, I think it shows the out side line going into the wall to the inside, then I would hook up the kit. Is this right? That the the line that would be on the tank runs through the wall. I think I may need other parts / lines but I don't know. Hope I am explaining this right... It is $50 an hour for our propane to do the work. ( which should only be drilling the hole in the wall and run the line) but they would probably drag it out a few hours.