 You can reroute the dryer exhaust duct inside your house to another exterior wall, so you want to make that as short a run as possible. You can also modify the dryer because sometimes you can bring the dryer duct out the other side, and you should also replace the flex duct with solid ducting. There is solid ducting out there for every possible configuration, including that very tight space between the dryer and the wall. If you get that venting right, clothes are going to dry quick, and the dryer will be safe as a result. Yeah, Mike. Do it right. Do it once.