We have a little wood stove in the living room. Nothing fancy, but it keeps the load off the furnace. It's a "high efficiency" stove according to the manufacturer with igniter tubes on the top of the box. Supposedly you can get 15 hours of burn time, but I haven't been able to do that unless hot ashes count. I bought a stovepipe thermometer to make sure the fire is hot enough not to create creosote, but I'm having a hard time maintaining that temperature long term say 3 hours or so after filling when there's nothing but hot coals. When it gets to the creosote level on the thermometer after burning a few hours, would this create creosote or is that more of an issue when the fire is initially warming up? All of wood I'm burning is fully seasoned btw. Dead elm, some hickory etc. No pine. I've cleaned the chimney once since buying the house.. It didn't really need it IMO, but I don't know how often the PO used it either. Thanks guys.