The route shapes the choices below
A lot of customers start by looking at the appliance, but the flue or chimney route often has a big say in what is possible and how cleanly the project can be finished.
Understanding that earlier helps you compare products more realistically.
The goal is clarity, not complication
Most people do not want a deep technical lesson. They want to know what is likely to work, what may need checking, and whether the finished route can still look tidy and considered.
If that is the part you are unsure about, a quick call or consultation usually clears things up faster than more reading.