Dura-Vent DirectVent Pro Adjustable Black Vent Pipe with 4-Inch Inner Diameter - 0911B

I have a Vermont Casting direct vent fireplace model 36BDVTRP insert with 7" outside pipe diameter and 4" interior pipe diameter. I need 1 90 elbow and enough pipe to go through a 8" combustible wall 30" away from the center of the pipe with everything needed including outside exhaust diverter. Can you help me?

I installed a new gas fireplace in my basement and need vent pipe. The fireplace vents out of the top and has a 6 5/8" outer pipe and a 4" inner pipe. The pipe will exit the basement through a hole in the foundation, which is 13' away from the fireplace horizontally, and the vertical change is approximately 51". The manual says that I should not exceed 14' horizontally with one 90 degree elbow allowed. Assuming I come out of the top of the fireplace with a 45 degree elbow (which adds only 1.5'), I'm only exceeding the max recommended run by 1/2 of a foot. Finally, the pipe will exit the foundation under a "bump-out" that added a foot to the size of our dining room above, so I need to consider how best to terminate.