This is a new product to us at east devon firewood and perfect for wood burners and stoves with small door openings. If you use coal then this might be the perfect alternative as its a perfectly recycled product from industry waste (compressed sawdust and shavings) giving off loads of heat and enabling you to sleep warm at night knowing that your not using up fossil fuels.  These 10kg weatherproof handy bags are easy to lift and may be the answer you've been looking for!