Author Topic: Wood Properties  (Read 2065 times)

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Offline teamnelson

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Wood Properties
« on: March 24, 2011, 01:56:07 PM »
Alder:  Poor heat output and short lasting.  A low quality firewood.  Produces nice charcoal that burn steady and is useful for homemade gunpowder.

Apple:  Great fuel that bums slow and steady when dry, with little flame, sparking or spitting. It has a pleasing scent.  It is easier to cut green.  Great for cooking.

Ash:  Considered one of the burning wood with steady flame and good heat output.  It will bum when green, but not as well as when dry.  Easily to saw and split.

Beech:  Similar to ash, but only burns fair when green. If it has a fault, it may shoot embers out a long ways.  It is easy to chop.

Birch:  This has good heat output but burns quickly. The smell is also pleasant.  It will burn unseasoned.  Can cause gum deposits in chimney if used a lot.  Rolled up pitch from bark makes a good firestarter and can be peeled from trees without damaging them.

Blackthorn: Burns slowly, with lots of heat and little smoke.

Cedar:  This is a great wood that puts out a lot of lasting of heat.  It produces a small flame, a nice scent, and lots of crackle and pop.  Great splitting wood.  Best when dry but small pieces can be burned unseasoned.  Good for cooking.

Cherry:  A slow burning wood with good heat output.  Has a nice sent. Should be seasoned well.  Slow to start.

Chestnut:  A mediocre fuel that produces a small flame and weak heat output.  It also shoots out ambers.

Douglas Fir:  A poor fuel that produces little flame or heat.

Elder:   A mediocre fuel that burns quickly without much heat output and tends to have thick acrid smoke.  The Hag Goddess is know to reside in the Elder tree and burning it invites death.  Probably best avoided.

Elm:  A variable fuel (Dutch elm disease) with a high water content (140%) that may smoke violently and should be dried for two years for best results.  You may need faster burning wood to get elm going.  A large log set on the fire before bed will burn till morn.  Splitting can be difficult and should be done early on.

Eucalyptus:  A fast burning wood with a pleasant smell and no spitting.  It is full of sap and oils when fresh and can start a chimney fire if burned unseasoned.  The stringy wood fiber may be hard to split and one option is to slice it into rings and allow to season and self split.  The gum from the tree produces a fresh medicinal smell on burned which may not be the best for cooking with.

Hawthorn:  Good firewood. Burns hot and slow.

Hazel:  An excellent fast burning fuel but tends to burn up a bit faster than most other hard woods.  Allow to season.

Holly:  A good firewood that will burn when green, but best if dried a year.  It is fast burning with a bright flame but little heat.

Hornbeam:  Burns almost as good as beech with a hot slow burning fire.

Horse Chestnut:  A low quality firewood with a good flame and heating power but spits a lot.

Laburnum:  Completely poisonous tree with acrid smoke that taints food and is best never used.

Larch:  Crackly, scented, and fairly good for heat.  It needs to be seasoned well and forms an oily soot in chimneys.

Laurel:  Produces a brilliant flame.

Lime:  A poor quality fuel with dull flame.  Good for carving
 
Maple:  A good firewood.

Oak:  Oak has a sparse flame and the smoke is acrid if not seasoned for two years.  Dry old oak is excellent for heat, burning slowly and steadily until whole log collapses into cigar-like ash.

Pear:  Burns with good heat, good scent and no spitting.  Needs to be seasoned well.

Pine:  Bums with a splendid flame, but apt to spit. Needs to be seasoned well and is another oily soot in chimney wood.  Smells great and its resinous wood makes great kindling.
 
Plane:  Burns pleasantly, but is apt to throw sparks if very dry.

Plum:  Wood provides good heat with a nice aromatic sent.

Poplar:  A terrible fuel that doesn’t burn well and produces a black choking smoke even when seasoned.

Rowan:  A good firewood that burns hot and slow.

Rhododendron:  Old thick and tough stems burn well.

Robinia (Acacia):  Burns slowly, with good heat, but with acrid smoke.

Spruce:  A poor firewood that burns too quickly and with too many sparks.
 
Sycamore:  Burns with a good flame, with moderate heat. Useless green.
 
Sweet Chestnut:  Burns when seasoned but tends to spit continuously and excessively.
 
Thorn:  One of the best firewood. Burns slowly, with great heat and little smoke.

Walnut:  Low to good value to burning.  It a nice aromatic scent.
 
Wellingtonia:  Poor for use as a firewood.
 
Willow:  A poor fire wood that must be dry to use.  Even when seasoned, it burns slowly, with little flame. Apt to spark.
 
Yew:  This burns slowly, with fierce heat. The scent is pleasant.  Another carving favorite.  Note that every part of this plant, except for the fruit contains poisonous toxins.  Death to livestock after ingestion of this plant is well documented and here are reported cases of suicides from ingestion of leaves.  Sawdust is dangerous if ingested or inhaled.  The Romans reported death after ingestion of wine stored in Yew vessels, yet Yew cups, bowls and plates are still very popular - not that this makes them any less poisonous.  Toxins are carried in smoke and the safety of using this wood for cooking or heat is questionable.

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Offline BUGEYE

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Re: Wood Properties
« Reply #1 on: March 25, 2011, 05:57:20 AM »
TN, several years ago I cut down a small cedar and decided to burn it. I touched a match to it and the needles burned off in about 10 seconds and never harmed the limbs.  so, since I had a lot of small pecan limbs that my trees had shed, I piled some on and lit it up.  I burned on that cedar for 3 days and only burned off the small limbs. the trunk was unharmed.   could it be because it was green?
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Offline teamnelson

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Re: Wood Properties
« Reply #2 on: March 25, 2011, 10:03:45 AM »
Bugeye, I'm gonna say yes, it was green.

Where I live now we have wood like Mango, Koa, Avocado, etc. so I'm still trying to figure them out by trial and error. I gotta say this little exercise in learning about wood has been eye opening for me, especially when it seems like so much of this was just common knowledge not long ago. This list is compiled from various sources. I can't say I know my trees by sight in the field, but I'm making it a goal. And to know which ones are better for stuff besides burning as well.
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Offline BUGEYE

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Re: Wood Properties
« Reply #3 on: March 25, 2011, 05:40:32 PM »
I will have to say that you have a curious mind.  not many people would have the patience to do all the experementing.  most of us rely on lore and don't question the source.
my hats off to you.
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Offline bilmac

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Re: Wood Properties
« Reply #4 on: March 25, 2011, 06:52:37 PM »
Alder is a preferred wood for cooking. The coals are perfect for broiling a fresh salmon.

Pines are different. We have both Ponderosa and lodgepole in Wyo. Ponderosa starts to rot as soon as it dies. It's hard to find anything bigger than squaw wood that isn't punky. It's hard to light and keep burning. Lodgepole lasts a long time after it dies and is easy to burn.

Russian olive smells like garbage when it burns.

Offline Lost Farmboy

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Re: Wood Properties
« Reply #5 on: March 26, 2011, 10:26:24 AM »
Thank you TeamNelson.  This is one of the skills I let slip thorough the generations.  Never paid attention when dad told me about wood.  You saved me a lot of research time.  I noticed hickory is missing.  Hickory is good for making homemade bows and good for smoking meat. 
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Offline BUGEYE

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Re: Wood Properties
« Reply #6 on: March 26, 2011, 11:47:01 AM »
Thank you TeamNelson.  This is one of the skills I let slip thorough the generations.  Never paid attention when dad told me about wood.  You saved me a lot of research time.  I noticed hickory is missing.  Hickory is good for making homemade bows and good for smoking meat.
+1 on the hickory.  we used that and apple in the smokehouse when I was a kid.
Give me liberty, or give me death
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Give me liberty, or give me death
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Offline Victor3

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Re: Wood Properties
« Reply #7 on: March 27, 2011, 01:20:28 AM »
If you find yourself in the SW US deserts, a great stuff to use as fuel is branches from a creosote bush. Can't throw a rock without hitting one most places I go. All the greenery out to the horizon in this pic is creosote (ignore that mortar there)...



 Only good stuff available to burn in some areas. They nearly all have dead branches on them and boy do they burn hot. Lot of energy density. Smells great too. Need to gather a lot of it for a long-burning fire though, as you won't generally find anything larger than ~1.5" diameter.

Very interesting plant...

http://tucsoncitizen.com/wryheat/2010/03/06/the-creosote-bush-a-desert-survivor/

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Offline bilmac

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Re: Wood Properties
« Reply #8 on: March 27, 2011, 02:10:07 AM »
Almost all the trees in the Sonoran Desert [where the creosote bush is] is great firewood. Mesquite and ironwood are both great wood for cooking, and there is usually lots of squaw wood around the bases of these trees. Palo Verde burns good, but doesn't make the nice coals that the others do. Barbequers in the know from that part of the world don't buy charcoal, they gather ironwood or mesquite.

Offline Victor3

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Re: Wood Properties
« Reply #9 on: March 27, 2011, 07:12:27 PM »
I love mesquite when I can find it. Unfortunately, in most of the Antelope Valley (Mojave Desert) where I go it's rare. Other than joshua trees there isn't much that produces substantial volumes of fuel, and even very dry joshua tree branches don't burn well at all.
"It is a capital mistake to theorize before one has data. Insensibly, one begins to twist facts to suit theories, instead of theories to suit facts."

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Offline teamnelson

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Re: Wood Properties
« Reply #10 on: March 28, 2011, 10:57:02 AM »
Jackrabbit over a mesquite fire ... memories! Of hopping back into the car and driving to the nearest 7-11 because no one brought anything else to eat ;D
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Offline charles p

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Re: Wood Properties
« Reply #11 on: March 28, 2011, 11:01:55 AM »
Greenest piece of wood I ever tried to burn in a fireplace was the trunk of a persimmon tree cut that day.  Should have cut it into chips and used it in a smoker.

Offline Victor3

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Re: Wood Properties
« Reply #12 on: March 28, 2011, 06:00:48 PM »
Jackrabbit over a mesquite fire ... memories! Of hopping back into the car and driving to the nearest 7-11 because no one brought anything else to eat ;D

 ;D Definately not "just like chicken." "Just like Goodyear" is more like it.
"It is a capital mistake to theorize before one has data. Insensibly, one begins to twist facts to suit theories, instead of theories to suit facts."

Sherlock Holmes