I have heard a couple different opinions on the fresh air intake for pellet stove. I have a Kozi Previa. I have heard the following two theories: 1. Install a fresh air intake pipe from the stove to the outside. This method is more efficient because the stove will use outside air instead of "sucking" air from inside the house. By "sucking" air from inside the house cold air will be pulled in through any window/door/crack/hole in the house which will just create cold drafts. 2. Do not install a fresh air intake pipe and let the unit use air from inside the house because condensation will form on the fresh air intake pipe and rust the pipe and/or get into the pellet stove and rust the stove itself. Any suggestions as to which is the best method. I have an old farm house so efficiency of the house is not very good. I will be improving this over the next few years. Thanks.