Is it better to have a chimney closer to the side of the house and use a shorter pipe out the side with two 30's around a six inch soffet or have the pipe be 8 or more inches off the side and go straight up with a longer pipe out the side ? Does it matter if the pipe is 6" or 8" . Also can you run an adapter for stove with a 6" flue into an 8" pipe and chimney ? Is this better than a 6" all the way ? thanks