skinnykid said:
I know this has been kicked to death so I just want an opinion.
I have a chance to get a Butt Load of Hemlock for very cheap/free.
Would you grab it and burn it winter of 2009-10?
Hemlock is always availble free in my area of New York - and it rarely gets taken. Hemlock is the #1 local wood sawed into rough framing lumber, and the local mills tend to get backlogged with huge piles of hemlock slabwood. Many now are chipping the slaps instead, just to get rid of it. My neighbor owns and runs a mill, and his latest effort is to chip all the slabwood, then dye it, and sell it as landscape mulch.
As far as is it any good? Generally speaking, NO. The word "good" means nothing unless compared to something else, it's based on relativity. So, even comparing hemlock to other softwood-slabwoods - it's one of the worst. It's hard to get dry, when stacked it tends to retain mousture and rot - at least in this area. I suppose an area with better sun would do better. If I stack a load of slab-hemlock outside, next to a stacked load of split maple, birch, oak, or a load of slab-pine, etc. - the latter will be dry enough to burn by fall, the hemlock usually won't. In fact, I have one huge pile up in my field that's been sitting there for four years now. Still pretty useless - but it's not covered.
So, if you live in a low sun area like here in Otsego County, NY, the hemlock is pretty useless as a firewood unless you've got excellent storage conditions.
I get huge piles of hemlock here at my farm. I stack some in my indoor wood-furnace room and virtually "bake" it before using. It does burn, but does not burn near as well as red or white pine (comparing it to other slabwoods). One note. We do use it when making maple syrup. When we've got a roaring fire under the evaporator, all we use is softwood. Keep in mind this type of fire is about as hot as a woodfire can get. When we want to lower the temp a bit, we throw in hemlock slabs, and when we need it hotter we throw in white pine slabs.