Firewood by species / Softwood
Extension tables · checked 2026-10-20
Eastern redcedar firewood
A cord of eastern redcedar holds about 20.2 million Btu of heat, according to the University of Kentucky forestry table (at 20% moisture content). That ranks it #31 of 52 species on this site, 1% more than the 20 million Btu the U.S. Energy Information Administration uses for a generic cord of wood.
- 1Heat per cord 20.2 million Btu
- 2Rank of 52 #31
- 3Dry weight 2,060 lb/cord
- 4Splitting Easy
How much heat is in a cord of eastern redcedar?
The two extension tables used here disagree by 7.2 million Btu: Kentucky lists 20.2 and Utah State lists 13 (as "Redcedar, Eastern"). A gap that large usually means the two tables measured different trees or a different moisture basis, so treat eastern redcedar as a range rather than one number. Cord Calc uses Kentucky's figure because its table states the moisture basis (20%). It sits 0.6 million Btu below the median species (20.75), and it is #7 of the 14 softwoods listed, whose average is 18.9 million Btu.
One cord of gambel oak, the highest in the table, holds as much heat as 1.52 cords of eastern redcedar. In the other direction, a cord of eastern redcedar replaces 1.46 cords of buckeye (horsechestnut), the lowest. In energy terms one cord equals the heat content of about 146 gallons of heating oil, using EIA's 138,500 Btu per gallon; the stove and the oil burner each lose some of that before it reaches the room.
Cords of eastern redcedar for a winter
For the example house used across this site (2,000 sq ft, built in the 1970s, wood as the only heat, a 74% efficient stove), a normal winter takes:
| State | Degree days | Eastern redcedar | Generic cord (20 M Btu) |
|---|---|---|---|
| North Dakota (coldest) | 9,184 | 6.8 cords | 6.9 cords |
| Oregon (median) | 5,269 | 3.9 cords | 3.9 cords |
| Florida (mildest) | 646 | 0.5 cords | 0.5 cords |
Because eastern redcedar beats the generic cord, the stack is 1% smaller than the same winter on average wood. Your own house will differ; the calculator takes your state, floor area, house age and price.
Weight, splitting and how it burns
- Weight: Utah State lists 2,060 lb air-dried. That is 16.1 lb per cubic foot of stacked cord, and roughly 1,030 lb for the half cord a full-size pickup bed holds.
- Kentucky's table puts a cord at 2,344 lb, 284 lb heavier than Utah State's dry figure.
- Splitting: easy (Utah State); Kentucky rates its splitting fair.
- Burning: low smoke, many sparks, poor coals, slight fragrance. A species that throws many sparks is best kept to a closed stove rather than an open fireplace.
- Overall rating (Utah State): fair.
- Water in the living tree: 33% moisture content (Kentucky), among the driest in the table, so it seasons sooner than most.
Whatever the species, the heat figures assume dry wood. Seasoned firewood is below 20% moisture; fresh-cut wood is 35 to 50% water by weight (CMHC), and burning it wastes heat boiling that water off. The seasoning guide and the moisture meter guide explain how to get there and check it.
What a cord of eastern redcedar is worth
Maine's Governor's Energy Office surveyed dealers at $355 a cord on September 21, 2026 (seasoned wood, minimum 2-cord purchase, local delivery included). Paid for as eastern redcedar, that is $17.57 per million Btu in the wood, or $23.75 per million Btu delivered by a 74% stove. It sits in the middle of the table, so a flat per-cord price is roughly fair for it. Only two states publish a dated cord price; see Maine and New Hampshire.
Similar species
- Sycamore: 20.2 million Btu per cord (#32)
- Green ash: 20 million Btu per cord (#33)
- American elm: 20.5 million Btu per cord (#29)
- Black cherry: 20.5 million Btu per cord (#30)
Compare every species on the firewood BTU chart, or see what a cord, face cord and rick hold before you buy.
Sources: University of Kentucky Forestry, Comparison of Properties Affecting Firewood (row "Red-cedar"); Utah State University Extension Forestry, Wood Heating (Kuhns and Schmidt), Table 1 Firewood Facts (row "Redcedar, Eastern"). Last checked 2026-10-20. Price: Maine Governor's Energy Office, 2025-2026 Heating Season Weekly Fuel Prices (September 21, 2026). Method: methodology.