How to Store Wood Pellets Properly to Prevent Moisture and Degradation
You have done the research, checked the certifications, and ordered your winter supply. But your work isn't done yet. In 2026, many homeowners lose up to 15% of their fuel efficiency simply because of poor storage.
Wood pellets are extremely "hydrophilic," meaning they act like a sponge for moisture. This guide, part of our The Complete Guide to Wood Pellets 2026, will show you how to keep your fuel bone-dry.
1. The Enemy Number One: Moisture
When wood pellets absorb water, they expand, lose their structural integrity, and turn back into sawdust.
The Result: They won't flow through your stove's auger (feeding system), potentially causing a mechanical jam or even a motor burnout.
The Sign of Damage: If your pellets look "swollen" or the bag has a lot of loose sawdust (fines) at the bottom, they have been compromised by moisture.
2. Indoor Storage Tips (The Preferred Choice)
Storing pellets inside a garage, basement, or shed is the best way to ensure quality.
Never Store Directly on Concrete: Concrete "sweats" moisture. Always place your bags or pallets on a raised wooden platform or pallet to allow air circulation underneath.
Maintain Low Humidity: If your basement is damp, consider using a dehumidifier.
Keep Away from Heat Sources: Maintain a safe distance from your furnace or water heater to prevent any fire risk.
3. Outdoor Storage Tips (The Hard Way)
If you have no choice but to store your pellets outside, you must be extremely diligent:
Check the Shrin-wrap: Most pallets come wrapped in plastic, but even a tiny pinhole can ruin an entire layer of bags.
Double Tarping: Cover the pallet with a heavy-duty, UV-resistant tarp. Secure it with bungee cords so it doesn't flap in the wind.
Keep it Off the Ground: Ensure the pallet is on high ground where water doesn't pool during rain or melting snow.
4. Bulk Silo Maintenance
For those using bulk delivery in 2026, silo maintenance is key:
Dust Removal: Once a year, empty your silo completely and vacuum out the "fines" (dust) that accumulate at the bottom. Too much dust can interfere with the sensor and the feeding mechanism.
Seal Checks: Ensure all access hatches are airtight to prevent humid air from entering.
5. Safety First: Carbon Monoxide Warning
A little-known fact about storing large amounts of wood pellets in enclosed spaces is that they can naturally emit small amounts of Carbon Monoxide (CO) as they off-gas.
Always ensure your storage area has basic ventilation.
Never enter a large, sealed pellet silo without letting it air out first.
Conclusion
Proper storage is the final step in ensuring a warm, hassle-free winter. By keeping your pellets dry, raised off the ground, and well-ventilated, you protect both your wallet and your heating system.
Now that your storage plan is ready, make sure you've calculated the right amount of fuel to store with our Wood Pellet Consumption Calculator or check the latest Wood Pellet Prices per Ton 2026 to get the best deal.
