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Boxelder Firewood

Acer negundo·hardwood·fair overall rating

Boxelder Firewood at a Glance

Heat Output
17.9M BTU
per cord
Seasoning Time
6–12 months
to dry below 20%
Split Difficulty
difficult
Smoke Level
medium
Spark Tendency
few
Fireplace Use
Yes (use spark screen)
Overall Rating
fair
Best Uses
Campfire, Fire Pit

Burn Characteristics

BTU / Cord

17.9

million BTU

Dry Weight

2,890

lbs/cord

Seasoning

612

months

Split Difficulty

Difficult

Smoke Level

Medium

Spark Tendency

Few

Coal Quality

poor

Overall Rating

fair

Is Boxelder a Good Firewood?

Ever had a tree everybody told you to skip... and then you burned it anyway? That's boxelder for me. Also called Manitoba maple or maple ash, it's technically a hardwood in the maple family, but it sits at the bottom of that family tree in terms of quality.

At 17.9 million BTU per cord, boxelder puts out decent heat on paper, roughly on par with black ash and some of the softer maples. But those numbers don't tell the whole story. At 2,890 lbs dry per cord, it's a lighter wood that burns through quicker than you'd want on a cold January night.

Here's the thing nobody warns you about, boxelder is actually difficult to split. The grain twists and interlocks something fierce. I've put a maul clean through oak rounds with one swing, then had boxelder rounds just laugh at me. If you're processing a whole tree's worth, you'll want a hydraulic splitter. Coal quality is poor, so don't expect it to hold overnight.

The good news is seasoning only takes 6 to 12 months. Stack it in the spring and it'll be ready by fall. It's abundant across the Midwest and Northeast, so you'll rarely have trouble finding it, most people are happy to give it away.

Bottom line, boxelder is "free wood" fuel. It's not something you'd buy, but if one comes down in your yard, it's worth burning through a shoulder season mixed with better firewood types. Think of it as the budget cousin of Silver Maple firewood.

Species Information

Scientific Name
Acer negundo
Also Known As
Maple Ash, Manitoba Maple
Type
hardwood
Regions
Midwest, Northeast
Availability
Abundant
Fragrance
Slight
Green Weight
3,589 lbs/cord

How many cords of Boxelder do you need?

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How Long Does Boxelder Take to Season?

Boxelder firewood takes 6–12 months to season properly. That puts it in the moderate range — split it in early spring and it should be ready for the following heating season. Always split before stacking, since rounds dry far more slowly than split pieces with exposed end grain.

For fastest results, split Boxelder into pieces no larger than 6 inches across and stack in a single row where wind and sun can hit both sides. Avoid stacking against buildings or fences that block airflow. A south-facing location will shave weeks off the drying time.

For detailed drying timelines for all 70 species, see our firewood seasoning guide. And if you want to understand why seasoning matters so much, our green vs seasoned firewood page breaks down exactly what happens when you burn wet wood.

Can You Burn Boxelder in a Fireplace?

Yes, Boxelder can be burned in a fireplace. It produces moderate sparks, so a spark screen or glass doors are recommended for safety. With a screen in place, it burns nicely and provides good heat. In a fireplace insert with sealed glass, the spark concern is eliminated entirely and Boxelder performs well.

For the best fireplace experience with Boxelder, make sure it’s fully seasoned below 20% moisture. Wet wood of any species will smoke heavily and dirty your fireplace glass. Use a moisture meter to check a freshly split face before burning. For longer-lasting fires, mix Boxelder with a denser species that holds coals better, like oak or hickory.

Wondering which species are the best fireplace choices overall? Check our best firewood rankings, or compare Boxelder against all 70 species on the BTU chart.

Frequently Asked Questions

How long does Boxelder take to season?
Boxelder firewood takes 6–12 months to season to below 20% moisture content. Split it in early spring and it should be ready for fall. Always split before stacking — rounds dry far slower than split pieces.
Can you burn Boxelder in a fireplace?
Yes, Boxelder works in a fireplace. Use a spark screen for safety since it produces moderate sparks.
How many BTU does Boxelder firewood produce?
Boxelder produces 17.9 million BTU per cord when properly seasoned. That's a moderate heat output, best for supplemental heating or shoulder season use.

How many cords of Boxelder do you need?

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