Firewood needs to be dried in order to reduce the moisture content in them, and so that they, accordingly, burn better. They are usually dried in specially designated places where they can be stored for a long time. Whether you heat a house with wood, or use them for a fireplace, you must dry them first, as they will burn longer and there will be much less smoke from them. Drying firewood is very simple, and you will save a lot of money if you do it yourself. You will learn about this in our article.
In the first 6-7 days after masonry, it is not recommended to heat the furnace. It is necessary to create maximum traction inside, which is achieved by the full opening of all valves, views and doors. In this case, by enhanced air circulation, drying of the surface words of the clay solution is achieved. You can try to strengthen the ventilation by directing an electric fan into the firebox and placing an electric lamp of high power in it.
After setting the upper layer of the mortar, you can proceed to the next stage - forced drying. For this, finely chopped dry firewood is used. They need to be laid out in a firebox and set on fire, then cover the blower, thereby reducing the supply of fresh air. It is enough to leave a gap of 1-1.5 cm, the view also needs to be covered by ½ to reduce traction. In this way, a slow movement of hot air is achieved, which will contribute to high-quality and deep drying of the masonry. After 6-7 hours, the doors and latches must be fully opened and the oven left in this position for a day. In the next 4-5 days, you need to repeat the furnace furnace daily, but the volume of firewood burned should be small (2-3 logs) so that the masonry is dried gradually.
How to understand that the oven is dry?
A furnace can be considered dried up if condensation does not form on the metal parts of the door with the doors and view closed for 3-5 hours. After that, you can melt the stove at full capacity, using 7-8 logs. When coals appear in the furnace, it is necessary to close all doors, gate valves and observe the external surface of the furnace for 5-6 hours, noting the formation of fresh cracks and the appearance of smoke from them. The smoke from the cracks of the furnace is a clear marriage; such a furnace needs to be redone. Fortunately, this happens very rarely, and thread-like cracks appearing on the surface of the furnace are quite normal, such a furnace can be exploited. Cracks of 2-3 mm need to be sealed with clay-sand mortar, but it is better not to do this right away, but after 2-3 months, so that their edges finally take shape.
How to avoid marriage
In addition to the importance of preparing quality material for laying the furnace, you must carefully choose a specialist. It's no secret that it’s very difficult to find a good stove-maker, which cannot be said about amateurs and charlatans. It is best in such cases to take the advice and feedback of acquaintances, choose a qualified specialist, whose skill will not be in doubt. Each master has his own version of drying ovens, which he will definitely recommend for use. In most cases, these recommendations differ only in details, but the main rule remains unchanged: immediately after masonry, the furnace must not be heated.
How to stack firewood
The implementation of the simple rules of harvesting and storing firewood can double the efficiency of the pyrolysis boiler. Since the moisture content of firewood is a variable indicator of their quality, it is possible and necessary to improve it. Of course, a freshly cut tree can already be called firewood, but such firewood is not yet suitable for use as fuel. A lot of energy from burning raw firewood is spent drying the firewood itself. The proportion of heat that will be used to evaporate moisture during the burning of crude fuel can be 75%. Accordingly, the efficiency of heating with raw wood will be low.
In order for freshly cut firewood to become real, high-quality fuel, they need to be folded and dried.
The easiest folk way to dry firewood is natural drying with good ventilation.
To do this, firewood is harvested for future use and stacked, for example, under a canopy in a woodpile. After some time, the wood will dry out and become air-dry. At the same time, the working heat value, and therefore the quality, of firewood will increase. It turns out that the owner who has prepared, stacked and dried the firewood for the future will save half.
The woodpile needs to be folded correctly
Firewood is laid at intervals between logs. The clearance between the logs should be sufficient for good natural air circulation. The movement of air in the woodpile is fundamentally important for the process of drying firewood. Good ventilation of woodpots helps to remove moisture from the wood and prevents the development of fungi and rot in the wood pulp. Basements, garages and other poorly ventilated rooms are not suitable for drying and storing firewood. Since wood is very hygroscopic, firewood laid for drying and storage should not have direct contact with the ground. Ideal - a wooden flooring or a stone base.
Firewood in a Woodpile
The people do this: from part of the logs stacked firewood make a longitudinal flooring. It is made in one layer, with the largest possible gaps between the logs. Churbaki for flooring choose thicker and more evenly, and stack them in the transverse direction with respect to the future woodpile. And then, already on this transverse flooring, firewood is laid in the longitudinal direction. Of course, a small part of the wood, in this case, is in contact with the ground, but the rest is at "height".
It is very convenient to stack firewood on regular pallets. Both standard and homemade.
Firewood on pallets
It is not necessary to build a special canopy for storing firewood. You can, with imagination, use existing ones. Depending on the season, the moisture content of freshly chopped wood will be different. Accordingly, they will need to be dried at different times.
The table below shows the recommended number of days for drying wood in a woodpile, depending on the time of their harvesting. Within the specified time, freshly cut firewood must dry to air-dry state.
Logging month Recommended time
for air drying,
The table shows that the firewood harvested in the summer months most quickly reaches the required condition. It is clear that if the firewood is not freshly cut, but already dried, then their drying time can be reduced, and, conversely, for wet firewood, the drying time must be increased. The influence of humidity of wood fuel on the efficiency of its use is extremely large. When dry wood is used as fuel, the productivity and efficiency of pyrolysis boilers increases and approaches, in terms of efficiency, the operation of boilers using liquid fuel. And, on the contrary, the use of raw firewood will inevitably cause a deterioration in the performance of the boiler unit. The procurement, storage and drying of firewood when using wood heating is an integral part of the work of a business executive. Timely and correctly prepared and stacked firewood will save you from many problems in the winter.
How long does drying take?
It all depends on the type of wood and size. Firewood from birch or aspen dries faster, from oak or pine - slower. Sawed logs will have to be stored for at least a year, and trimmings can be used for several days. Standard firewood will dry well after 3-6 months.
Where to dry?
Dry the fuel during storage, so when choosing a place for storing wood, consider several factors:
- Woodpile should be outside the house. Otherwise, termites or mold may appear in the living rooms.
- Wood can not be placed outdoors: if there is no place in the barn, build a canopy - large enough so that the rain does not reach the fuel. Precipitation during drying is contraindicated.
- It is not worth placing chopped firewood on the ground or bare concrete. Build a flooring - even a few boards will protect the wood from insects, mold and rot. Otherwise, the lower rows may rot.
Do not dry the tree next to the stove. This method is sometimes used in the winter, during the period of frosts, but this method of express drying is fire hazard: any spark can lead to fire.
How to dry?
So, we turn to the main question - how to dry firewood. No special events are needed for this. The secret is simple - just put them together correctly.
Before warehousing, many are advised to leave the logs in the open in a heap. So the tree dries faster under the sun and in the wind. Just a few weeks - and firewood can be sent to the woodpile.
Stack wood so that there is space between them. So you ensure the circulation of air, which dries the wood. There are many ways to stack: you can build a "house", you can stack firewood up and down. Folded up? Now it remains to wait. In just a few weeks you will be able to use fuel.
You can not stack firewood on top of each other, without any system. This will slow down drying and can lead to mold. A tree can be folded in this way only if it has already been dried. But it is best to leave him in the "house".
The dried tree has large cracks and is easily chopped, and when struck it makes a dull sound.
Note: Do not overdry wood. If all moisture leaves the log, it will flash immediately and burn out too quickly, giving all the heat to the stove. This can be dangerous for some furnaces and chimneys: due to temperature differences, a crack may form on the surface of the brick stove through which smoke and carbon monoxide will escape.
The optimum humidity is 15-20%. This level is enough for the tree to light up easily and burn evenly, gradually giving off the heat of the stove.
Note that in winter the tree does not dry well. The ideal time for shopping is summer. It is even better to buy firewood in St. Petersburg in late spring: in a humid climate with an abundance of rainfall, they dry much longer. Take advantage of the assortment of the Drovnitsa company: firewood will be delivered quickly.