Why moisture matters
For domestic burning, Ready to Burn certification means 20% moisture or less. BurnBetter recommends aiming for 18% or below when you test the freshly split centre of representative logs. Wetter fuel is harder to light, wastes heat boiling off water and can create more smoke, soot and tar.
The correct test, step by step
- Bring the log and meter to a similar indoor temperature if practical; condensation and very cold fuel can distort readings.
- Choose a representative log—not only the smallest or driest-looking one.
- Split it immediately before testing.
- Push the pins firmly into the freshly exposed centre, following the meter maker’s guidance about grain direction and species settings.
- Take two or three readings across the new face and repeat on several logs from the batch.
- Use the overall pattern, not one convenient number, to decide whether the load is ready.
Reading the result
BurnBetter’s practical target is 18% or below on the freshly split face. A 19–20% reading may still meet the Ready to Burn limit, but it leaves less margin for meter variation or uneven logs. Above 20% means the batch needs more drying time and better airflow. Test several logs and use the overall pattern, not one convenient number.
Mistakes that give false confidence
- Testing only the outside of an unsplit log.
- Checking one log from a large delivery.
- Pressing the pins into loose bark.
- Using blunt, dirty pins or a weak battery.
- Ignoring the instructions, calibration check or wood-species setting supplied with the meter.
A meter checks fuel—not the whole installation
A low moisture reading does not prove that a log is untreated, that a chimney is clear or that a stove is being used correctly. Burn only suitable fuel named in the appliance manual, keep ventilation open and maintain the stove and flue professionally.
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