Just did the chimney reline for my pellet stove. There are two pipes, one for exhaust and one for fresh air. The one close to you with a separated cap is for fresh air, a 3" alimiumn pipe. The one for exhaust is 3" stainless steel pipe specially for pellet stove. I need your professional advice to see is there anything was done wrongly. http://www.flickr.com/photos/lmei007

thanks