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What type of wood is not good for firewood?

Just avoid these kinds of firewood, and you'll be the combustion superstar of chilly evenings. Driftwood. Green Wood. Pine Wood. Construction and Furniture Wood. Non-Local Wood. Poisonous Wood. Endangered Wood. Habitat Wood. More items... •

familyhandyman.com - 9 Types of Wood You Shouldn't Burn - The Family Handyman

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Be the fire pit champion instead of that host who smokes everyone out and makes them sick. It's easy — just learn what firewood not to burn. Whether exchanging tales around the fire pit or getting cozy indoors on a winter night, wood-burning fires are the ultimate ambiance setter. But using the wrong wood will choke up the scene quickly, and perhaps cause long-term damage to your home, health and nature. Consider hardwood vs. softwood, seasoning time and potential toxins. Not to worry. We’re not talking about splitting the atom here. Just avoid these kinds of firewood, and you’ll be the combustion superstar of chilly evenings.

Driftwood

Ocean driftwood has a high salt content, and chlorine is a chemical compound of salt. So when you burn driftwood, it releases high doses of dioxins. “If you’re breathing it in, it’s carcinogenic, and that’s not a good thing,” says naturalist and TV survivalist instructor Roger Hammer. “It’s also not a good a thing to use under your steak. All wood has some dioxins, but driftwood is particularly high.”

Green Wood

Like a greenhorn, green wood is fresh on the scene. It’s just been cut and it’s full of moisture. That makes it embarrassingly difficult to light. And if you are lucky enough to get it lit, it will smoke like crazy. Besides being annoying, that smoke will add creosote to your chimney, which can build up and cause a fire. The solution? Always use wood that has been properly seasoned or kiln dried. Pine, a softwood, is resinous. That means when burned, it emits a lot of soot that adds dangerous creosote to your chimney walls. It also burns more quickly than hardwood, so it’s less efficient, though it can be used as kindling. If you have a leftover pine Christmas tree, it’s best not to burn the wood in your fireplace.

“I wouldn’t cook meat over it because it’s really sappy,” says Hammer.

Australian pine is the exception because it has far less resin. According to Hammer, it’s considered one of the best firewoods in the world.

Construction and Furniture Wood

A bonfire with leftover construction materials and broken chairs might sound like heaven, but it’ll be one toxic party. Most construction wood is treated with chemicals to prevent decay. And up until the early 2000s, a lot of pressure-treated wood contained arsenic. Furniture is often made from plywood or chipboard and strong adhesives. Painted wood is definitely not good as firewood. Many wood pallets are also treated with chemicals and shouldn’t be burned in recreational fires.

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Non-Local Wood

Firewood from afar is a major transmitter of invasive insects and diseases. Just one log can jeopardize a forest or a species, like what has happened with the emerald ash borer, gold-spotted oak borer, gypsy moth and sudden oak death. Solution: Buy wood cut close to your home. Use this map for more details on firewood transmitters in your area.

Poisonous Wood

Burning poison oak, poison ivy, poison sumac and poisonwood creates smoke with irritant oils that can cause severe breathing problems and eye irritation. “If it’s got the word poison in it, I wouldn’t be burning it, or eating it or anything else,” says Hammer. “Oleander is another bad one, that can hospitalize you if you breathe it or use it for hot dog sticks.”

Endangered Wood

Use this U.S. Department of Agriculture chart to make sure the firewood you’re buying or harvesting is not an endangered or threatened species.

Habitat Wood

When collecting wood in the outdoors, check if animals are using it. Birds and other animals may be nesting in dead trees and downed logs. “You know there’s an environmental ethic, some of that wood is useful for critters to live in,” says Hammer. “Sometimes dead trees attract more wildlife than living trees.”

Rotten and Moldy Wood

Rotten wood is less dense and won’t produce as much heat as dried wood. Moldy wood can create toxic fumes when burned. Both tend to have higher water contents so they produce a lot of smoke. Solution: Leave it for the bugs and fungi.

Products Containing Wood Pulp

Burning newspaper, cardboard, wrapping paper and magazines can float long-lasting embers into the air and even up the chimney, where they can set creosote and the roof ablaze. One exception: You can use a small bit of tightly twisted newspaper to start a fire.

Not Wood

Styrofoam, plastic, empty food containers and boxes, cigarette butts and all that other trash contain toxins. Many of those poisons are harmful to breathe and can travel far in the wind. Solution: Don’t burn them.

familyhandyman.com - 9 Types of Wood You Shouldn't Burn - The Family Handyman