Best Firewood to Burn in Seattle & the Pacific Northwest

Why Firewood Choice Matters for Your Chimney

If you burn wood in your Seattle fireplace, the species you choose has a direct impact on your chimney's health, your home's safety, and your heating efficiency. The wrong firewood — too green, too resinous, or too wet — produces excessive creosote, the tar-like substance that coats your flue lining and causes chimney fires. The right firewood burns hot, clean, and efficiently, producing minimal creosote and maximum warmth.

Living in the Pacific Northwest, you have access to excellent local hardwoods and softwoods. But not all PNW species are created equal for fireplace use. Here's your definitive guide to choosing, seasoning, and burning the best firewood in Seattle.

PNW Firewood Species Ranked: Best to Worst

🏆 Tier 1: Excellent — High Heat, Low Creosote

Madrone (Pacific Madrone)

• BTU per cord: ~30 million
• Seasoning time: 12-18 months
• Creosote production: Very low
• Availability: Moderate — found in the San Juan Islands and drier areas of western Washington

Madrone is the gold standard of PNW firewood. It burns incredibly hot, produces beautiful coals, and generates minimal creosote. The downside? It's harder to find and splits best when green. If you can source it, stock up — your chimney will thank you.

Oregon White Oak

• BTU per cord: ~28 million
• Seasoning time: 18-24 months
• Creosote production: Very low
• Availability: Low to moderate in western Washington

Oregon white oak is dense, long-burning, and clean. It's the hardwood that burns most like East Coast oak species. The long seasoning time is the only drawback — plan ahead and buy it a full two years before you need it.

🔥 Tier 2: Very Good — Reliable, Widely Available

Bigleaf Maple

• BTU per cord: ~24 million
• Seasoning time: 12 months
• Creosote production: Low
• Availability: Very high — abundant throughout western Washington

Maple is the workhorse firewood of the Pacific Northwest. It's widely available, seasons reasonably fast, burns clean, and produces good heat. It doesn't have the extreme heat output of madrone, but it's reliable, easy to split, and your chimney sweep will appreciate your choice.

Red Alder

• BTU per cord: ~20 million
• Seasoning time: 6-12 months
• Creosote production: Low
• Availability: Extremely high — the most common deciduous tree in western Washington

Alder is everywhere in Seattle and seasons faster than any other local hardwood. It burns clean and hot enough for shoulder-season fires (October, April). It burns faster than maple or madrone, so you'll go through more of it, but the low cost and easy availability make it a PNW staple. Bonus: alder smoke has a pleasant, mild aroma.

Cherry & Apple

• BTU per cord: ~20-24 million
• Seasoning time: 12 months
• Creosote production: Low
• Availability: Low to moderate — often available from orchard pruning in eastern Washington

Fruitwoods burn beautifully with a sweet, aromatic smoke. They produce excellent coals and minimal creosote. Availability is the limiting factor — check with local arborists and orchard operations for a source.

⚠️ Tier 3: Acceptable — Use with Caution

Douglas Fir

• BTU per cord: ~20 million
• Seasoning time: 12 months
• Creosote production: Moderate
• Availability: Extremely high

Douglas fir is the most widely available firewood in the Pacific Northwest, but it's a softwood. It ignites easily, burns hot initially, and burns out faster than hardwoods. The moderate resin content means it produces more creosote than hardwoods. It's acceptable for occasional use and excellent as kindling, but don't make it your primary fuel if you want to minimize creosote buildup. If you burn Douglas fir regularly, schedule chimney sweeping more than once per year.

❌ Tier 4: Avoid — High Creosote, Low Value

Western Red Cedar

• BTU per cord: ~15 million
• Creosote production: High
• Why to avoid: Cedar is extremely resinous and pops aggressively, throwing sparks. It produces heavy creosote deposits and burns out very quickly. Occasional use as kindling is fine, but never burn cedar as your primary firewood.

Pine (any species)

• BTU per cord: ~16-18 million
• Creosote production: High
• Why to avoid: Pine's high sap content creates rapid creosote buildup. It pops and sparks dangerously. One season of burning pine as primary fuel can coat your flue with Stage 2 or even Stage 3 creosote. Just don't do it.

Unseasoned (Green) Wood — ANY Species

• Creosote production: Very high regardless of species
• Why to avoid: Green wood contains 40-60% moisture. All that water must boil off before the wood actually burns, which drops the fire temperature dramatically. Cool-burning fires produce 2-3x more creosote than hot-burning fires. Burning unseasoned wood is the #1 cause of dangerous creosote accumulation in Seattle chimneys.

The Moisture Content Rule: 20% or Less

Regardless of species, moisture content is the single most important factor in clean, safe burning. Properly seasoned firewood has a moisture content of 20% or less. Here's why it matters:

• Below 20% moisture — Burns hot and clean. Minimal creosote. Maximum heat output. Your chimney stays healthy.
• 20-30% moisture — Burns adequately but produces noticeably more smoke and creosote. Acceptable in a pinch but not ideal.
• Above 30% moisture — Smolders, hisses, produces heavy smoke, and coats your flue with creosote. This is how chimney fires start.

Invest in a moisture meter ($15-$30 at any hardware store). Test wood by splitting a piece and measuring the freshly exposed face. This one tool will tell you more about your firewood quality than any other indicator.

How to Season Firewood in Seattle's Rain

Seattle's wet climate makes firewood seasoning a challenge — but it's absolutely doable with the right approach:

• Split wood immediately — Split logs dry 3-5x faster than rounds. Split as soon as you get it, even if it's green.
• Stack off the ground — Use pallets, 2x4s, or a firewood rack to keep wood at least 4 inches off the ground. Ground contact wicks moisture into the wood.
• Cover the top only — Cover the top of your stack with a tarp or roof, but leave the sides open for airflow. Fully wrapped tarps trap moisture and cause mold.
• Face the open side south or west — Maximize sun and wind exposure. Seattle's prevailing winds come from the south/southwest.
• Stack in a single row — Air circulation between pieces is critical. Avoid deep stacks that prevent airflow to interior pieces.
• Plan ahead — In Seattle's climate, add 2-3 months to the standard seasoning times listed above. Buy wood in January for next winter's burning season.

Buying Firewood: What Seattle Homeowners Need to Know

• Cord vs. face cord — A full cord is 4' x 4' x 8' (128 cubic feet). A "face cord" or "rick" is only 4' x 8' x 16" — roughly one-third of a full cord. Always clarify what measurement you're buying. Seattle prices: $250-$400 per cord for seasoned hardwood mix, $350-$500 for premium species like madrone.
• Buy local — Washington state recommends buying firewood within 50 miles of where you'll burn it to prevent spread of invasive insects. The emerald ash borer is a real threat in the Pacific Northwest.
• Inspect before buying — Check for mold, insects, and moisture. Good seasoned wood has cracks on the end grain, sounds hollow when pieces are knocked together, and feels light for its size.
• Delivery timing — Order in spring or summer for best prices and selection. Fall demand spikes drive prices up 20-30%.

Firewood Choice and Chimney Maintenance

Your firewood choices directly determine how often you need professional chimney sweeping:

• Hardwood-only burners (maple, madrone, alder) — Annual sweep is typically sufficient. You're doing it right.
• Mixed hardwood/softwood burners — Sweep every season or twice per year if you burn significant amounts of fir.
• Softwood-heavy burners (fir, cedar, pine) — Sweep at least twice per year. Consider switching to hardwood to save on long-term maintenance costs.
• Unseasoned wood burners — Sweep immediately and switch to seasoned wood. You're building up dangerous creosote every time you light a fire.

The math is simple: investing in quality, seasoned hardwood saves you money on chimney maintenance, extends the life of your flue liner, and dramatically reduces your chimney fire risk. A cord of premium hardwood might cost $100 more than a cord of questionable softwood, but one chimney fire can cause $10,000+ in damage. Contact us for a chimney assessment or to schedule your annual sweep.