Gerry Parent wrote:The equalization of temperature that I think Thomas is referring to is the temperature inside vs outside the riser. The closer they are = less draft, the further apart = more draft.
Of course this is just one influence on draft but have you room for more or better insulation on your riser? For example, a "5 minute riser" made from ceramic fiber blanket is probably the most compact riser your ever going to get to fit into your tight space.
Relying on a fan to do something the stove should already do naturally though is a bandaid solution and can become a much bigger issue if it decided to stop working.