This isn't about btus. It isn't about efficient fires. It isn't about processing less wood. It is about burning a fire overnight or while away at work. Any fire that will keep the house warm even if it wastes some of the btus available had that wood been seasoned. The most important thing with heating with a woodstove is burn time, a long steady burn at a high enough btu rate to keep the hosue warm.
Not all stoves can burn 8-10 hours on one load of wood. Many only burn 5.
The burntime can be extended by throwing in a green log. This is not because the burners are lazy or ran out of dry wood. It is a method of extending the burntime. Yes, it pollutes more, adds extra creosote to your flue, makes your glass black, and is less efficient than burning only dry wood BUT, in the morning, your house/stove will be warm.
There are better stoves available that will burn for 40 hours now on one load of dry wood with low heat ouput and very low emissions. The real solution is to buy a better stove. In the meantime, many folks burn big chunks of green wood.
this thread title could also be called "adding overnight creosote to start a chimney fire "
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