My heater is over ten years old and has so many issues (including leaking heavily), so I plan to replace it. I just don't want to spend the ~$2K cost right now, so I am going to remove it. Does anyone have any suggestions on the type of PVC or other connection I can attach to the flange nipples so I can basically bypass the heater? I don't want to cut the nipple connections out because I want to reuse the to just plug the new heater in when I get one. Thanks for the advice