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Green Ash Firewood

Fraxinus pennsylvanica·hardwood·excellent overall rating

Green Ash Firewood at a Glance

Heat Output
21.1M BTU
per cord
Seasoning Time
6–12 months
to dry below 20%
Split Difficulty
easy
Smoke Level
low
Spark Tendency
few
Fireplace Use
Excellent
Overall Rating
excellent
Best Uses
Home Heating, Campfire, Fire Pit

Burn Characteristics

BTU / Cord

21.1

million BTU

Dry Weight

3,400

lbs/cord

Seasoning

612

months

Split Difficulty

Easy

Smoke Level

Low

Spark Tendency

Few

Coal Quality

good

Overall Rating

excellent

Is Green Ash a Good Firewood?

If you've driven through the Midwest in the last decade, you've probably seen the aftermath of the emerald ash borer, dead ash trees everywhere, whole streets of them. Sad to see, honestly. But it also means there's a mountain of green ash firewood available right now, and if someone's offering it, you should absolutely take it. This stuff is one of the most user-friendly firewoods you'll ever handle.

Green ash puts out 21.1 million BTU per cord, which slots it right in the solid middle of the hardwood range. That's a touch below white ash but still plenty of heat for a primary heating wood. At 3,400 lbs dry per cord, and 4,184 lbs green. It's dense enough to throw real heat without being so heavy you dread stacking it. I've heated entire winters with nothing but ash and never felt like I was settling.

The splitting is where green ash really shines. Straight grain, easy splits, and it practically falls apart on the block. Even rounds that are 18-20 inches across usually go in one or two swings. If you're just getting into processing your own firewood and you're still figuring out your swing, ash is the most forgiving species to learn on.

Here's the real kicker: seasoning time is only 6 to 12 months. That's fast. Cut it in March, split and stack it, and you can burn it by November. Most hardwoods need at least a year, and dense stuff like oak can take two. Green ash gets dry quick because the wood is porous and sheds moisture easily. Run your heating calculator numbers with green ash and you'll see the turnaround time is hard to beat.

If I had to pick one species that does everything well and nothing badly, green ash would be on the short list. Low smoke, few sparks, good coals, easy to split, seasons fast, and puts out respectable heat. It's rated excellent overall for a reason. The only knock is the fragrance is pretty faint, it doesn't give you that sweet smell some folks love from cherry or apple. But you're heating a house, not making potpourri.

Species Information

Scientific Name
Fraxinus pennsylvanica
Type
hardwood
Regions
Midwest, Northeast, South
Availability
Common
Fragrance
Slight
Green Weight
4,184 lbs/cord

How many cords of Green Ash do you need?

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How Long Does Green Ash Take to Season?

Green Ash 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 Green Ash 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 Green Ash in a Fireplace?

Yes, Green Ash is an excellent choice for an open fireplace. It produces low smoke, throws minimal sparks, and burns steadily — exactly the combination you want for safe, pleasant fireplace use. You can enjoy it without worrying about embers popping onto the carpet or smoke filling the room. No special precautions needed beyond standard fire safety.

For the best fireplace experience with Green Ash, 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. Green Ash produces good coals, which means steady, long-lasting heat from your fireplace without constant tending.

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

Frequently Asked Questions

How long does Green Ash take to season?
Green Ash 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 Green Ash in a fireplace?
Yes, Green Ash is excellent for fireplaces — low smoke, few sparks, and steady heat. No special precautions needed.
How many BTU does Green Ash firewood produce?
Green Ash produces 21.1 million BTU per cord when properly seasoned. That's a solid mid-to-upper range output suitable for primary home heating.

How many cords of Green Ash do you need?

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