Ask ten people for the best firewood and you will get ten answers, but the science behind a good fire is not complicated. The wood you choose affects how much heat you get, how long a load lasts, and how much residue ends up in your flue. For Homer Glen homeowners who heat with wood, picking the right species — and drying it properly — makes every fire better.
Density and dryness: the two things that matter
Good firewood comes down to two properties. The first is density: denser wood packs more energy into each log, so it burns longer and puts out more heat. The second is dryness. No matter how dense the wood, it has to be properly seasoned — dried to below roughly 20 percent moisture — to burn hot and clean. Wet wood wastes much of its energy boiling off water and sends unburned smoke up the flue to condense as creosote. Get both right, and the fire nearly takes care of itself.
The best woods for a hot, lasting fire
For a primary heat source, dense hardwoods are hard to beat. Oak, hickory, hard maple, ash, and black locust are among the top performers, burning hot and slow once fully seasoned. Their density is also why they need longer to dry — often a full year or more. Lighter woods have their place too: pine, birch, and poplar catch quickly and make excellent kindling or a short, cheerful blaze, but resinous softwoods burn fast and are better for starting fires than for sustaining them. A practical woodpile has both — light wood to get going, dense hardwood to carry the heat.
Seasoning: the step that makes or breaks it
Even the best species disappoints if it is wet, so seasoning is where the payoff is. Split the wood, stack it off the ground with space for air to move through, and cover the top while leaving the sides open. Give it six to twelve months, longer for dense hardwoods. You will know it is ready when it has grayed, cracked at the ends, feels light, and sounds hollow when two pieces are knocked together. Burning dry, dense wood keeps your chimney sweeping intervals honest, because it produces far less of the creosote that fuels chimney fires — though it never replaces the annual service that confirms your flue is safe.
Great firewood and a clean chimney go together — one keeps the other in good shape. Call Indigo Chimney Sweep at (815) 296-9565 or book online. We are bonded and insured, and we tell you the price up front. We will keep your Homer Glen flue clear so your well-chosen firewood burns as safely as it does warmly.
Frequently asked questions
What makes one firewood better than another?
Two things matter most: density and dryness. Denser hardwoods pack more energy per log, so they burn longer and hotter, while any wood must be properly seasoned to burn cleanly. A dense hardwood that is still wet will disappoint; a lighter wood that is bone-dry can burn well but faster.
Which firewood species burn the hottest and longest?
Dense hardwoods like oak, hickory, hard maple, ash, and black locust are among the best for long, hot fires. They take longer to season because of their density, but once dry they deliver steady, lasting heat that lighter woods cannot match.
Are softer woods ever a good choice?
Yes, for the right job. Lighter woods such as pine, birch, and poplar ignite quickly and are useful for starting a fire or for a short, bright blaze. The catch is that resinous softwoods burn fast and can contribute more buildup, so they are better as kindling than as your main fuel.
Does the wood species affect creosote buildup?
Indirectly. The biggest driver of creosote is moisture, so unseasoned wood of any species is the real problem. That said, dense, well-seasoned hardwoods burn hotter and more completely, which tends to leave less residue than smoldering, wet, or resinous wood.
How can I tell if firewood is properly seasoned?
Seasoned wood is lighter than green wood, has cracks radiating from the ends, sounds hollow when two pieces are knocked together, and has grayed or dulled in color. A moisture meter reading below about 20 percent confirms it. Freshly cut wood needs six to twelve months to reach that point.
Is it worth paying more for premium hardwood?
For a primary heat source, denser hardwood generally gives more heat and longer burns per load, which many people find worthwhile. The key is that it be truly seasoned — paying a premium for wet hardwood defeats the purpose. Dryness matters more than any label.
Can I burn wood from any tree in my yard?
Most well-seasoned native hardwoods are fine, but avoid anything painted, treated, or from unknown sources, and steer clear of green or resinous wood as your main fuel. When in doubt, split it, stack it off the ground with good airflow, and give it time to dry before burning.
Does good firewood reduce how often I need a sweep?
Burning dry, dense hardwood produces less creosote than wet or resinous wood, which helps — but it does not replace annual service. Even the cleanest-burning fires leave some deposit, and only a professional sweep and inspection confirms the flue is safe for another season.
Written by Jamie Reed, operations manager at Indigo Chimney Sweep.
Published September 22, 2026