I am considering getting a Leisure Line Econo 1 stove. I need to put in an outside fresh air intake for the combustion. Is there a maximum length that the pipe can run? And do any of the fittings take up on this number? I would like to run it all the way down the house and out the back end so that it doesn't stick out to much. Also is there a proper way to connect the air intake on the stove itself? I know they recommend three inch plastic pipe but what is the best way to hook it up? Thanks for all of the help.