Since its a Shaver, if you just want to feed a bunch of air to it and out the chimney to burn out the creosote, make a hole in the coals a few inches behind the main door, add your wood fuel and open the ash door, that will feed air under the fire and up thru the burn chamber area and out the chimney.  You shouldn't have any fire coming out of the stove door that way.
I put a post on here a few weeks ago about fixing a sagging Shaver door that seems to help minimize the door gasket problem too.  It has helped my door gasket hold together much better this year.
I have also read if you use insulated pipe outside of the unit, it cuts down on the creosote development.  that might be something to look into if its a frequent problem.