How a Wood Stove Works

An wood stove It's nothing more than a closed combustion chamber with an air inlet that regulates combustion and then transforms the energy into heat. It's the most effective natural heating system, along with the traditional one. caminettoHowever, a wood-burning stove is much more practical and less expensive than a fireplace, since with a modest supply of wood, its cost is largely amortized in a very short time.

The most commonly used wood stove is the one with the cast iron fireplace because it has greater thermal conduction potential. Its heat, in fact, spreads very efficiently, and the hot air generated enters the grille underneath the stove and is distributed throughout the room thanks to a series of fans. The wood-burning stove is part of the category of renewable fuel stoves, because carbon dioxide emissions are negligible, thus respecting environmental balances. A wood-burning stove is excellent for heating even large, though not enormous, spaces and requires no constant maintenance. Finally, one of its advantages is that it can be used for up to 24 hours without relighting or refilling fuel: in a wood-burning stove, the heat from the embers continues to spread even when the appliance is turned off.

Index of topics

Ventilation system

The wood stove consists of a ventilation system, combustion chamber has always been flueThis stove is fueled by wood. A wood-burning stove can be a good source of heating for an entire home, if it's small, or it can supplement the main heating system, for example, in a single room. Therefore, before purchasing one, it's important to carefully evaluate its functionality within the living space. Based on these considerations, you'll choose whether to buy a small stove or a large appliance that generates heat for the entire home. Operating a wood-burning stove is very simple.

First, take some dry, seasoned logs and arrange them lengthwise, then crosswise, to allow air to circulate. It's a good idea to place dry branches or crumpled paper between each log. Before lighting the fire, it's essential to open the vents and dampers. Once the wood begins to burn, you can adjust the airflow so the logs burn at a high flame. If cold air has accumulated in the chimney, it won't work properly. In this case, it's a good idea to keep the stove doors open to allow air to circulate. Before lighting the stove, it's important to perform several checks, such as checking the flue system, the ash drawer (which must be cleaned), the cleanliness of the combustion chamber, and the proper functioning of the chimney draft.

Air regulation

In a stove, the combustion air is regulated thanks to a portcullis After measuring the amount of wood, you can adjust the flame intensity and therefore heat output based on your current needs. When the wood catches fire, you basically open the air vent so that the logs burn at a high flame. Avoid excessively strong drafts and excessively slow combustion, which could cause soot deposits inside the stove. You should also avoid constantly opening the stove door to add firewood.

Use at night

It is not advisable to leave a wood stove lit even at night., because often when this is done, the appliance is overloaded with wood, setting the power to minimum to ensure combustion lasts longer. However, this will result in insufficient oxygen to ensure optimal combustion, and the stove will produce excessive fumes and residues that then accumulate in the exhaust pipes, compromising the proper functioning of the chimney. Therefore, even at night, good air flow should be ensured in the fireplace to avoid unpleasant inconveniences and allow you to sleep safely, enjoying a pleasant warmth.

Wood-burning stoves for heating radiators

There are stoves that connect to pellet radiators and which are called “hydro stovesTraditional stoves heat the entire home, while these special stoves are capable of producing hot water for the entire heating system, whether it's radiators or underfloor heating. The power of these stoves is indicated by two values: the first specifies the product's power, and the second indicates the power transferred to the water. The difference between the two values is 2-3 kW and indicates the heat the stove releases to the room in which it is located. In a small, well-insulated room, this 2-3 kW of heat released by the stove is sufficient, so the radiators could even be turned off, as they are considered excessive.

Differences between wood-burning stoves and convection wood-burning stoves

Finally, it is important to know that there are different types of wood stovesThe traditional ones are radiant heat They concentrate heat near the stove, losing effectiveness even a few meters away. This transmission characteristic makes this technology suitable for small spaces. For larger rooms, wood-burning stoves are ideal. at convention Unlike the previous models, these stoves allow for even heat distribution throughout the room, while also saving up to 40% on wood. Thanks to their carefully calibrated heat transmission characteristics, these stoves convert the energy contained in the wood into hot air and heat much more efficiently, ensuring better performance with less power. The result is reduced fuel consumption, which is beneficial to the environment.

Cost

How much does it cost to heat with a wood stove? Let's do the math, starting with a 100-square-meter home, which requires approximately 12 MWh of energy for the entire winter. According to the Italian Agroforestry Energy Association, 1 MWh of energy produced from firewood costs 39 euros, compared to 62 euros. pellet and 172 for natural gas. So, with a 100-square-meter home, a wood-burning stove will cost around 500 euros for the winter season. Obviously, these costs are zero if you have your own firewood, which you don't have to buy. And in any case, according to calculations by the Association of Wood-Burning Stove Manufacturers, the savings are 64 percent compared to natural gas and 80 percent compared to LPG.

How much do you save?

The wood stove also features other advantages, in terms of savings and waste reduction. While it heats the home and especially the environment where it is located, produces hot water e cooks the foodIt is no coincidence that the wood-burning stove has always been called an “economy stove”.

Thanks to these features, you can benefit from a vertical drop in energy consumption, not only for heating (gas and/or electricity), but also for cooking, where gas costs for using the stove are one of the largest in the home energy bill.

Certification

Wood boilers do not require certification, unlike stoves, natural gas heating systems, and fireplaces. The same goes for flues, which require specific certification.

How to use a wood stove