If you heat with wood or just love a good fire, you learn quickly that not all firewood is equal. The difference between a wood that lights fast and throws real heat and one that hisses, smokes, and barely catches usually comes down to one thing: how well it was seasoned. In a Massachusetts winter, that difference is the difference between a warm room and a frustrating evening.
Here is what MetroWest homeowners should understand about seasoned firewood, cords, and buying wood that actually burns the way it should.
What seasoned firewood really means
Seasoned firewood is wood that has been cut, split, and dried long enough that most of its internal moisture is gone. Fresh-cut wood can be half water by weight. As it seasons, that water evaporates, and the wood becomes lighter, easier to light, and far more efficient to burn.
Seasoning takes time. Depending on the species and how it is stored, hardwood generally needs somewhere from six months to a year or more of drying, split and stacked, to be truly ready to burn. Dense woods like oak sit at the long end of that range. Wood that was split and stacked last spring is not the same as wood that was cut this month, even if it looks similar in the pile.
Why moisture content matters so much
Moisture is the whole game with firewood. Well-seasoned firewood typically sits around 20 percent moisture content or below, and the reasons that number matters are practical:
- Heat output: wet wood spends much of its energy boiling off water instead of heating your home. Dry wood puts that energy into the room.
- Easy lighting: seasoned wood catches and burns steadily. Green wood hisses, smolders, and fights you.
- Less creosote: burning wet wood produces more smoke and creosote, which builds up in your chimney and raises the risk of a chimney fire.
- Cleaner burn: dry wood makes less smoke, which is better for your chimney, your air quality, and your neighbors.
You can spot seasoned wood by its clues: it is lighter than it looks, the ends are often cracked in a radial pattern, the bark is loose or falling off, and two pieces knocked together make a sharp crack rather than a dull thud.
Seasoned vs green vs kiln-dried
You will hear three terms thrown around. Here is the plain difference:
- Green firewood is freshly cut and still full of moisture. It is cheaper, but it is not ready to burn and needs months of drying first. Buying green in the fall for that same winter usually means a poor burn.
- Seasoned firewood has been air-dried outdoors for months to a year or more until its moisture is low enough to burn well. This is what most people want for the current heating season.
- Kiln-dried firewood has been dried in a kiln to a very low moisture content quickly. It burns very cleanly and is the driest option, but it typically costs more.
For most MetroWest homeowners heating a fireplace or wood stove, properly seasoned hardwood is the sweet spot of price and performance.
What a cord is and the best woods for New England
A cord is the standard unit for buying firewood, and it pays to know it so you are not shorted. A full cord is a stacked pile measuring 128 cubic feet, traditionally four feet high by four feet wide by eight feet long. You will also hear the term face cord, which is one stack four feet high by eight feet long but only as deep as the log length (often around 16 inches), so a face cord is roughly a third of a full cord. Always ask which one you are being quoted.
For New England heating, dense hardwoods are what you want because they burn longer and hotter than softwoods:
- Oak: excellent, long-burning heat, though it needs the longest seasoning time to dry fully.
- Sugar maple and other hard maples: high heat and a favorite regional firewood.
- Ash: burns well and seasons relatively quickly, one of the more forgiving hardwoods.
- Birch: lights easily and burns hot, though a bit faster than oak.
- Beech and hickory: dense, hot-burning hardwoods when you can get them.
- Soft woods like pine burn fast and leave more creosote, so they are better as kindling than as a primary heat source.
Storage, buying tips, and delivery
Even great firewood can go to waste if it is stored wrong. Keep your wood dry and let air move through it:
- Stack wood off the ground on pallets or rails so it does not wick up moisture from the soil.
- Cover the top of the stack to shed rain and snow, but leave the sides open so air can circulate and the wood keeps drying.
- Stack in a sunny, breezy spot rather than a damp, shaded corner.
- Bring only a few days of wood inside at a time to avoid carrying in pests.
- When buying, ask how long the wood has been seasoned, ask whether you are getting a full cord or a face cord, and be skeptical of freshly split wood sold as ready to burn in the same season.
Oak Tree Master delivers seasoned firewood across MetroWest MA. Because we are a tree service, the wood comes from the trees we take down and process, and we can talk you through species, quantity, and what will burn best in your setup. Call (508) 922-2709 to ask about seasoned firewood delivery or a free on-site estimate on any tree work.