I stumbled across some fairly good prices on Excel Pellet Vent pipe today so I bought it rather than ordering it from down south, and have a couple questions. This pipe has the orange silicone gasket built into the pipe. Is there anytng special that needs to be done when installing it or just slip it over the pipe and screw the screws in? Also have any of you ever used wall supports on the inside of your house? I have about a 6ft interior vertical run from the stove to where it exits the house and it seems like its a lot of weight with no brackets supporting it all? I am oh so close to having this P68 roaring and its just in time as its been getting down near 40 at night already up here. Thanks in advance.