Since we’ve already done our measurement and we know we have a 9-inch Rome flue, we know also that we would use a standard size Chimella.
The Chimella is very durable and it installs with a push of a button. It also uninstalls with a push button. You can recapture it.
You have to put the Chimella in pass the damper and then hit the up button and then reach up and push the collar forward to tighten up the Chimella lock. Tighten up the collar to make sure it’s a snug fit.