its fairly easy if you bought the stove pipe kit also. I kinda set the stove in the blind to figure out where I wanted it. Mine is a little close to the wall but I used some thin sheet metal next to the wall and floor to reflect the heat away, might be better things to use to do this but that is what I did. After I had the heater about where I wanted it I set the stove pipe on it up to the ceiling to figure out where it would go. With a combination of eyeballing and measuring I then used a 3 1/4" or 3 1/2" hole saw on a cordless drill to make my hole for my stove pipe. The stove pipe does get close to the plastic roof but never gets hot enough to melt or burn. You could use a bigger hole saw if you have one, mine was the biggest I had. The stove pipe kit has flashing, a rain cap, and and another piece that goes around the stove pipe outside to keep the rain out. Easy to do if your blind is low and you can get up to the roof with a ladder, If your blind is mounted up high on a tower it might not be so much fun. After the stove pipe is mounted I then screw the heater to the floor to make it solid. Be sure to install the included damper in the stove pipe and install it as high as you can in the stove pipe. Like way up next to the ceiling. This will hold heat in the stove pipe giving you even more surface area to radiate heat. It does make a difference. I still have my propane tank and hose in the blind. One day I plan to run the hose outside so the propane tank is outside as well.
When you set the heater in the blind figuring out where you want to put it, check how your windows open if they'll hit the stove pipe or heater. I have the long vertical bow hunting windows and one of mine would have hit the heater, so as I mentioned earlier I simply unscrewed it and flipped it around so now it opens the other way. Just the way my blind sits in that area, that window isn't used much.
Anther tip once your heater is installed and running, The adjustment knob turns counter clockwise to lower the output. It seems backwards, and the few other people I've let use that blind tend to turn the knob clockwise first and not realize it also lowers it more going counter clockwise.
It might be awhile till I get back to that blind, but I can send pics if you want.
My only complaints on the nuway heater is you need matches to light it and you can't move it around like a buddy heater. The fact that your windows don't fog up more than makes up for that though. I love the thing.