Greetings, I appreciate the feedback from my other posting, but wanted more specific details. There appears to be a great deal of experience from many senior members that I can learn from, so I want take advantage of that experience. Many of you have opposed straight venting a stove without any vertical rise, and have posted links to show why. I have seen the black soot all over the siding, and the "melted" areas as well - not for me! I spoke with Quad today, and they confirmed that vertical rise is best - and recommended. He even said that I could shorten it if needed, due to my situation. I do need some clarification. In the manual, it states: 2. Distance from doors and opening windows, or gravity or ventilation air inlets into building: a. Not less than 48 inches (1219mm) below; b. Not less than 48 inches (1219mm) horizontally from; c. Not less than 12 inches (05mm) above. I have a walk out basement with many windows. If I place my stove on the exterior wall that has 2 windows, it will go in the center of the wall, with the vent running out the back through the wall, with a tee and up in between the 2 windows. I can run the vertical pipe 36 inches in height, which would maintain the 48 inches of recommended distance between the end cap and the windows on the above floor. The end cap will be approximately 49 inches above the actual opening area of the windows that border the vent pipe on each side. Here's my dilemma: the manual states "not less than 48 inches horizontally from". What exactly does this mean? That the end cap must be 48 inches away from the opening of the window horizontal to it? What if the top part of my window doesn't open, but the bottom does, and its 48 inches away from the end cap - would that suffice? In reality, the pipe will be 12 inches from the border of both windows (in the center of both), but the end cap will be 49 inches away (in height) from the window opening. Thoughts?