pheonix owner here. problem is not specific to that stove- i'll be the house on too little draft. mine is in a masonary fireplace, with a 6" ss liner all the way to the top. i think im right at the 30' max height.
BTW, what does that little wolly blanket do anyway? to be honest, i think i took it out and threw it away! i thought it was packing material or insulation from the home build....
From what I have been told the ceramic blanket is to keep the combustion working below--with more even heating to the stove--plus the manual states it's to lessen the emission from the stove? Some seem to fear that if it is not there--the top stone will crack? The problem I had with the blanket is that is moved in the stove and blocked the draft-(through a couple of explosions in the stove (for some unknown reason)-creating a lot of smoke back into the room--regardless of how hot the chimney was. This ceramic blanket lays right on top of the baffle and it is not attached to keep it in place. When I pulled it out it was full of ash and torn--and the stove is drafting fine now--no smoke coming back into the room at all. If you want to replace the ceramic blanket the only place I could find that had one is on-line at Wood Heat and Solar. There are 3 different Phoenix stoves--so you would have to find the model number of your stove--then they have a parts component chart that is easy to use and you can order all parts that way.. The Phoenix II takes a 3120-210 blanket if that is your model?--it's fairly cheap around $22.00. Here is the link for the 8612 Phoenix II--and it will show you all the parts of the stove--this company seems to stock everything. The second link is their web-site where you order the parts--after obtaining the part number from the below pdf file link.
http://woodheatstoves.com/download/Phoenix 8612 exploded view.pdf
http://woodheatstoves.com/
