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Johnson County

Research-based Information You Can Trust — Localized for your needs

Johnson County
11811 S. Sunset Drive
Suite 1500
Olathe, KS 66061

Office Hours:

Monday - Friday,
8:30 a.m. - 5 p.m.

(913) 715-7000
(913) 715-7005 fax

Map to our office

K-State Research and Extension is committed to making its services, activities and programs accessible to all participants. Reasonable accommodations for persons with disabilities may be requested by contacting Johnson County Extension at (913)715-7000. Notify staff of accommodation needs as early as possible.

Kansas State University Agricultural Experiment Station and Cooperative Extension Service

K-State Research and Extension is an equal opportunity provider and employer.

Not All Firewood Is Equal

Return to Natural Resources Agent Articles

If you're making decisions about woodlots, keep in mind that some types of wood burn better than others.

The following are heat values (in million BTUs) per cord for various species of trees. The higher the value, the "better" the wood.

Ash, Green                                          22.8    

Cottonwood                                        15.9    

Elm, American                                    19.8     Difficult to split

Elm, Red                                             20.6     Difficult to split

Elm, Siberian                                      20.9     Difficult to split

Hackberry                                           21.0    

Honeylocust                                        25.6    

Locust, Black                                      28.3     Difficult to split

Maple, Sugar                                       24.0    

Maple, Silver                                      18.9    

Mulberry                                             25.3    

Oak, Red                                             24.0    

Oak, Bur                                             24.9    

Oak, Post                                            25.6    

Osage Orange (Hedge)                         32.6     Sparks; do not use in open                                                                            fireplace

Sycamore                                            19.5     Difficult to split

Walnut, Black                                      21.8    

For more information read the Kansas Forest Service publication Managing Your Woodland for Firewood.

Also check out Making Good Choices About Firewood.

Contact Us

Amy Keigher

Natural Resources Agent