Hemlock Firewood
Tsuga canadensis·softwood·fair overall rating
Hemlock Firewood at a Glance
Burn Characteristics
BTU / Cord
million BTU
Dry Weight
2,465
lbs/cord
Seasoning
12–18
months
Split Difficulty
Easy
Smoke Level
Medium
Spark Tendency
Many
Coal Quality
Overall Rating
Is Hemlock a Good Firewood?
Hemlock gets a bad rap, and honestly... some of it is deserved. Eastern hemlock is common across the Northeast and Southeast, and a lot of people end up with it after a storm or a land-clearing job. It's free, it's available, so you burn it. But don't go in expecting much.
You're looking at 15.3 million BTU per cord with a dry weight of 2,465 lbs. That's mid-range for a softwood, on par with lodgepole pine. The real problem is the coals, hemlock doesn't hold them well at all. The fire burns down to nothing fast, so you're back at the stove adding more wood before you've even settled into the couch.
Easy to split, at least. One of the few good things about hemlock is that it doesn't fight you on the chopping block. Light rounds, straight grain most of the time. But heads up, it sparks like crazy and throws more smoke than you'd want for indoor burning in an older stove. Keep your chimney clean and check it more often if hemlock makes up a big chunk of your wood pile.
This is where hemlock gets a little annoying, it takes 12 to 18 months to season properly, which is longer than a lot of other softwoods. Don't rush it. Green hemlock is smoky, creosote-heavy, and just unpleasant to burn. Give it a full year minimum.
Hemlock works for different firewood types where you just need something burning and don't care about overnight coals. Spring and fall? Sure. Dead of winter with nothing else? You'll be cold. Compare it to Balsam Fir firewood, similar BTU but balsam seasons faster and smells way better.
Species Information
- Scientific Name
- Tsuga canadensis
- Also Known As
- Eastern Hemlock
- Type
- softwood
- Regions
- Northeast, Southeast
- Availability
- Common
- Fragrance
- Good
How many cords of Hemlock do you need?
Calculate how many cords of Hemlock your home needs this winter based on your climate, home size, and stove type.
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Try it freeHow Long Does Hemlock Take to Season?
Hemlock firewood needs 12–18 months to reach proper burning moisture below 20%. The dense wood releases moisture gradually, so plan at least one full year ahead. Split it as small as practical to speed drying, stack it in a sunny spot with open sides, and use a moisture meter to confirm it’s ready before loading the stove.
With Hemlock, the biggest mistake people make is not splitting it soon enough. Whole rounds can take twice as long to dry as split pieces. Get it split and stacked the moment you bring it home, ideally in a spot with full sun and good wind exposure. Check it with a moisture meter before burning — don’t guess.
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 Hemlock in a Fireplace?
Hemlock is not recommended for open fireplaces. It throws many sparks — more than most species — which is a genuine safety hazard when there’s no barrier between the fire and your living space. A single ember landing on carpet or furniture can start a house fire. Burn Hemlock exclusively in a closed wood stove or a fireplace insert with sealed glass doors, where it performs beautifully.
If you want the heat output of Hemlock without the fireplace concerns, a modern EPA-certified wood stove is the best option. Stoves contain sparks completely, operate at much higher efficiency than open fireplaces (72% vs 10–15%), and let you take full advantage of Hemlock’s 15.3 million BTU per cord.
Wondering which species are the best fireplace choices overall? Check our best firewood rankings, or compare Hemlock against all 70 species on the BTU chart.
Frequently Asked Questions
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