I am new to the forum. All of my "pellets" have been of the 24" x 10" variety in my Hardy outside wood furnace. In the next few months I plan on purchasing a Harman XXV pellet stove and use the black Direct-temp pellet OAK. It will be installed in a room with at least a 12 foot vaulted ceiling. The chimney will be vertical through the roof. Would anyone tell me what parts I will need to purchase for this installation?