concerned pellet,
First of all I'm glad to hear that the fire was stopped so that nobody was hurt.
Now, you don't inform us whether your Castile is a freestanding or an insert. If it's an insert then this thread posted in january 2009 is very relevant:
https://www.hearth.com/econtent/index.php/forums/viewthread/33466/
SmokeyTheBear and webmaster Craig Issod both suggested that the hopperfire might have been caused by some double draft phenomena from the back of the stove.
Bo
First of all I'm glad to hear that the fire was stopped so that nobody was hurt.
Now, you don't inform us whether your Castile is a freestanding or an insert. If it's an insert then this thread posted in january 2009 is very relevant:
https://www.hearth.com/econtent/index.php/forums/viewthread/33466/
SmokeyTheBear and webmaster Craig Issod both suggested that the hopperfire might have been caused by some double draft phenomena from the back of the stove.
Bo