Greetings from NH. Would appreciate any advice. I Have a newer Jotul wood stove that has been working great for the past three years. I dont use it a lot. I like to use thewood stove when it snows or gets really cold to take the load off my oil furnace(seperate flue). I just put in new stove pipe a few weeks ago and it has been working fine. (There is just one 90 degree bend up where it goes into wall. I had been using it all day and had just filled it with wood for overnight and used the ashpan door just to get the fire going and then shut it. I walked away and boom! the stove pipe blew out of the wall and the clean out door down in the basement even blew open with so much force that it bent the metal. I didn't see any chimney fire outside. What could have caused it? What do I do now?