This should take about ten minutes or so, less if you do it regularly. You'll also notice an increased efficiency in airflow when you use the stove vent. In the spring (Maybe sooner) I am going to retrofit the old, noisy and power hungry fan with a 12 V "computer type" muffin fan. I'll get more flow with MUCH less noise and less power draw. Always a good thing! Of course, I'll write it all up!
Be Seeing You...Down The Road,
Rich "The Wanderman"