We just got our first ever woodstove. After lots of research we opted on the absolute steel hybrid from Woodstock soapstone company. It’s a bit overkill for our tiny cottage of 650 sq ft. We did a few smaller fires to season the stove and the past 2 days have been trying to figure the stove out. We managed an overnight slow and steady burn for 12 and never got cold. The one issue we can’t figure out is the black build up on the glass and inside the stove. It is supposed to burn itself off but only seems to build up more with each fire. We are using kiln dried wood and loading as per instructions and online vids from the company. We wait till the fire is going and the stove is at 300 and then lower the air intake and close the damper. The fire dies down but smolders and keeps us warm hours. We must be doing something wrong though and would love some input.