I have been using my new stove for about 2 weeks now but have yet to the the combuster glow. The temperature gauge stays in the active zone but the combuster does not seem to be working. I am burning dried spruce and birch(about 20 pct moisture meter readings.) Does the combuster still work even if it does not glow? I do get good overnight burn times at 1.75 (10 plus hours). Appreciate any thoughts..