On Thu, 20 Feb 2020 22:16:01 -0800 (PST), wrote:

This thread has been ongoing for 11 years with no definitive answer? I have a Lopi Leyden wood stove with plastic smell once unit gets hot. Actually see some black tar like substance in the crease of the top door. I need answers!!!!!! Please
Creosote? What kind of wood are you burning and how hot is your
stack?? If it is creosote it could be dangerous - anf you need to get
better wood and let it burn instead of banking it too much.