I recently purchased a house that has a pellet stove vented through a basement window. The original run was ran up just a couple feet below the soffit and the wood was discolored from the heat. After doing some research I also found it was over the maximum recommended length for 3" pipe. My question is can I run it out the window like this picture below safely or do I need another horizontal section? Thanks in advance for your help on this subject! I've also included pictures of how it was ran before and the inside setup.
![[Hearth.com] Venting for Pellet Stove [Hearth.com] Venting for Pellet Stove](https://www.hearth.com/talk/data/attachments/315/315905-32801543d7f9ed2e9ea011be408e5dbe.jpg?hash=x3SDDFNSgN)
![[Hearth.com] Venting for Pellet Stove [Hearth.com] Venting for Pellet Stove](https://www.hearth.com/talk/data/attachments/315/315904-ce1c563ed8d0d73c2184e70873d9e8cf.jpg?hash=PJrM-Pf-0P)
![[Hearth.com] Venting for Pellet Stove [Hearth.com] Venting for Pellet Stove](https://www.hearth.com/talk/data/attachments/315/315906-361b78458420f662c51d9df98a3a5189.jpg?hash=wbysUKFuqW)
![[Hearth.com] Venting for Pellet Stove [Hearth.com] Venting for Pellet Stove](https://www.hearth.com/talk/data/attachments/315/315905-32801543d7f9ed2e9ea011be408e5dbe.jpg?hash=x3SDDFNSgN)
![[Hearth.com] Venting for Pellet Stove [Hearth.com] Venting for Pellet Stove](https://www.hearth.com/talk/data/attachments/315/315904-ce1c563ed8d0d73c2184e70873d9e8cf.jpg?hash=PJrM-Pf-0P)
![[Hearth.com] Venting for Pellet Stove [Hearth.com] Venting for Pellet Stove](https://www.hearth.com/talk/data/attachments/315/315906-361b78458420f662c51d9df98a3a5189.jpg?hash=wbysUKFuqW)