How To Split Firewood: 4 Safe & Efficient Methods

Few methods of home heating are as iconic and rewarding as burning wood—especially if you cut and split it yourself. The hard physical work of splitting firewood is missing from most other heating methods, along with the sense of accomplishment when your house is nice and toasty during a blizzard.

Growing up on a rural homestead, I have many fond memories of splitting wood with my father, dating back to age six or seven. Although I’ve lived in my own home for many years now, I still heat with wood and enjoy splitting and stacking it just as much as ever.

If you think you’d like to try wood heat this winter but aren’t sure where to start, read on.

Ways To Split Firewood

Like all practical, hands-on skills, learning how to split firewood relies on two essentials: the right knowledge and the right tools. Skill grows with experience, and the best way to split firewood is to begin alongside someone who’s already mastered cutting and splitting logs. Tool choice hinges on how many cords you’ll tackle each season and how much time you’re willing to invest. Consider these four options:

1. Splitting Axe

A splitting axe, also called a splitting maul, is one of the simplest ways to start splitting firewood. This tool features a large, heavy, wedge-shaped blade of steel attached to a long, sturdy handle.

The idea is to swing the axe downward, striking the thin edge of its head into the top surface of the log you’re splitting, with enough power to split the log in two. Next, set up the two halves on their ends and split each again. Repeat the process until the pieces of split firewood are as fine as you need.

A splitting axe usually has a three-foot-long handle and a head that weighs eight pounds. Shorter and smaller models are available for folks who lack the upper-body strength to swing a big one. Splitting firewood with an axe is tiring and slow compared to a gas-powered splitter, but it sure is satisfying.

However, if you plan to split more than a cord or two of wood each year (a cord is a pile of stacked firewood 8-ft. x 4-ft. x 4-ft.), you’re probably better off with a gas-powered splitter—that is, unless you’re exceptionally strong, fit and enjoy testing yourself physically.

2. Gas-powered inertia splitter

Also called a kinetic splitter, this machine harnesses the power of combustion to make quick work of your firewood pile. A lever drives a steel wedge via an internal flywheel‑and‑belt system, giving homeowners the fastest mechanical way to split firewood. While its tonnage rating—how much force hits the log end—is impressive, that punch lasts only a split‑second. Knot‑filled or twisted rounds can stall the wedge, demanding two or three quick flicks of the lever. But if pure speed and high‑volume output top your list of firewood splitting tips, an inertia splitter is tough to beat.

3. Gas-powered hydraulic splitter

Also called a kinetic splitter, this machine turns combustion into rapid, repeatable power, making quick work of even a towering woodpile. A lever drives a steel wedge via an internal flywheel‑and‑belt system, giving homeowners the fastest mechanical way to split firewood. While its tonnage rating, how much force hits the log end—is impressive, that punch lasts only a split‑second. Knot‑filled or twisted rounds can stall the wedge, demanding two or three quick flicks of the lever. But if pure speed and high‑volume output top your list of firewood splitting tips, an inertia splitter is tough to beat.

Its smooth, consistent pressure means fewer jams and less operator fatigue, making it ideal for large volumes of firewood. While it may take a bit longer per split compared to kinetic models, the hydraulic splitter excels in reliability and handling tough, stubborn logs with ease—perfect for those serious about mastering how to split firewood efficiently and safely.

4. Manual splitter

Some folks want to split firewood without bothering with big, loud gas-powered machines. They also might lack the confidence or physical strength to swing an axe effectively. That’s where manual splitters come in.

Design details vary, but most feature a steel wedge attached to a shaft that’s mounted in or next to each log. A sliding weight on the shaft is meant to be slammed into the thick edge of the wedge, driving it into the wood’s end grain and eventually splitting the log.

A manual splitter was the first method I used to split wood as a kid. It was perfect for me at the time, because it was safer than other tools and didn’t require much skill or strength. The downside? A manual splitter is one of the slowest ways to produce firewood.

Simple steel wedges and sledge hammers are another method of manual firewood splitting. Hold the wedge against the log, tap it in slightly with the hammer, remove your hand, then pound the hammer against the wedge until the log splits. These are the log splitters that we think are the best of 2022.

How To Split Firewood

For most people interested in splitting serious amounts of wood, I recommend a good gas-powered inertia splitter. They’re fast, easy to use and the occasional binding up on a stubborn log doesn’t justify the typically higher price tag of a hydraulic splitter.

I split around 10 cords of wood every year. I’ve tried nearly every wood splitting tool out there and find myself firing up my inertia splitter more often than anything else. If you’re not sure how much wood you need, most homes need between three and six cords of firewood each winter, depending on climate, square footage and insulation quality.

Here are the basic steps and safety precautions involved in splitting firewood with an inertia splitter:

• Wear a pair of safety glasses, earmuffs and thick work gloves. Never do any wood splitting without these items (minus the earmuffs if using an axe).
• Wear a short sleeve shirt, tough work pants and steel-toe boots to protect yourself from log-induced bruises.
• Use a chainsaw to cut your firewood logs to splitting length (the length of your stove or fireplace’s burn box, minus two to three inches).
• Always wear protective chaps over your pants when using a chainsaw.
• Check gas and oil, then fire up your inertia splitter, usually with a pull cord.
• Lift one of the cut logs onto the bed of the splitter, positioning it so the end rests against the steel baseplate.
• With your hands well away from the wedge and log, pull the lever, holding it in position until it fully splits the log.
• Retract the lever, wait until the wedge returns to its starting position, then position one of the split log halves against the baseplate and repeat the process.

If you don’t want to split firewood, look into where to buy firewood that’s pre-split. If you’re just having the occasional bonfire and aren’t heating your home with wood, a pre-split bundle from the grocery store will usually be enough.

Safety Tips to Follow While Splitting Firewood

It’s fun to split firewood, but a swinging blade or a 20-ton splitter doesn’t give you much room for mistakes. Before you pick up the maul or turn on the machine, be sure you follow these important safety rules.

• Get ready: ANSI-rated safety glasses, 25 dB earmuffs, heavy leather gloves, long pants and steel-toed boots.
• Stable footing: Clear away the ice, bark and trash and stand shoulder-width apart on flat ground.
• Safe swing zone: Keep kids, dogs and assistance at least 10 feet away from your arc or splitter bed.
• Mind fatigue: If you start to make mistakes, stop and rest. Most axe injuries happen when you’re one last log.
• Splitter protocol: Keep your hands away from the wedge path and turn off the engine before taking out the stuck bullets.
• Sharp, not shiny: When you sharpen an axe or maul correctly, it bites more predictably and glances less.

FAQ

What is the best way to split firewood for beginners?

When you’re just starting out, the ideal technique to split firewood is using a splitting maul and a strong chopping block. Aim for natural fissures and let the weight of the maul do the work. Cut each round into four pieces to speed up the seasoning. If a full-swing maul scares you, consider a slide-hammer manual splitter instead. It will give you the same results with less work.

Can I split firewood when it’s wet, or should it be dry first?

Yes, cut green logs. It’s easier to separate fresh fibers, which gives you more surface area to dry. Put the pieces on top of each other, cover only the top and they will be ready to burn in 6 to 12 months when the moisture level is 20% or less. For $30, a meter will show you that you know how to split firewood for clean, efficient burns.

How much force (tonnage) do I need in a hydraulic wood splitter?

A 22- to 25-ton hydraulic splitter can handle most hardwoods, like oak and maple, for normal house heating needs (3 to 6 cords per year). If you often work with big or knotty rounds, go up to 30 tons. For softwoods with straight grains that are smaller, 10 to 15 tons is usually enough and costs less.