I've seen that used on drier vents(commercial) but never a stove. I'd be worried it would get past the door seals and soot the shack up! Leaf blower sucking out and brush from inside seems safer?
I prefer the gas leaf blower too. The electric ones just do not have the power. I actually fixed 2 St Croix stoves because nothing else worked. Also made pvc adapters for 4” or 3” venting and I always disconnect the vacuum switch hose first. 4” venting And 3” venting https://m.youtube.com/shorts/LeVfYztR9Q0
Yessssss Not unhooking the vacuum hose is a real sketchy move......The diaphragm can be damaged.........
Do mine like this with a shop vac blowing or i have an attachment rigged up to use the electric leaf blower, no need to blow all that mess towards the stove or go out in the cold.
My 4" venting is all on the outside so every spring I take it apart and pressure wash it inside. From the stove through the wall to the 3-4" increaser Tee, I pull the bottom cleanout and stick my handy-dandy Harbor Freight 20 volt Bauer blower in the stove end of the pipe (when I have the draft fan out) and blow the pipe out with a bucket underneath to catch the chunks. Works like a charm.
Not that we are making much ash right now anyway. Stove has been off for 2 weeks now. In the 70's during the day, 50's at night so I let the new Plus 95 condensing furnace warm the house in the morning. Runs 5 minutes maybe a day. No way can I run the biomass stove. Would be unbearable in here.