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Comment by Rob Torcellini on February 19, 2013 at 4:37pm

I did a bit of experimenting with it.  The problem is that the wood isn't very uniform and has knobs and branches that get caught up on everything.  It makes for a very inconsistent burn with that and having different wood types and moisture contents.  I need something I can just light and ignore it for several hours.

Comment by George on February 19, 2013 at 2:52pm

Here's a question for you.  Have you considered making a feeding tube for your rocket mass heater which would enable you to auto feed wood from your property?  As an example, a 6-8 inch pipe standing straight up that you could drop lengths of wood into, then close at the top - open at the bottom where the wood drops into the combustion zone.  I've heard that some homemade BBQ rigs have such devices and this seems feasible to me.