Woodworking 2023, April

How a fireplace insert worksA fireplace insert has a viewing window and a combustion chamber. Inside, a special air duct ensures the automatic adjustment of the air flow to the changing temperature. This enables a particularly efficient use of the fireplace

Biomass heating - what is it?Heating with fossil fuels such as oil, coal and natural gas has many disadvantages. These include the limited occurrence, the long and complex transport, the heavy environmental pollution and also high costs for the end user

What is a wood gasification boiler?A Holvergas boiler is a solid fuel boiler that can be operated with logs, for example. Unlike a chimney, in which all the wood usually burns at once, a wood gasification boiler works on the principle of lower combustion

Framework conditions - promotion of wood heatingWood heating systems burn renewable energy sources such as logs, pellets, wood chips and wood briquettes. For this reason, the state supports the purchase of such systems. When funding wood heating, the following always applies: it must be requested from the responsible authorities before the measures are carried out

Structure and function of the combi boilerA combination boiler combines the advantages of a wood gasification boiler with the convenience of an automatic pellet heating system. It usually consists of two full-fledged heat generators, which can often be combined later

Firewood moisture should be a maximum of 25 percentThe first BImschV (first regulation to implement the Federal Immission Control Act) stipulates a maximum wood moisture content of 25 percent. Values between 15 and 20 percent are optimal. The

How wood heating works for wood chipsWood chip boilers burn so-called wood chips. These are shredded pieces of wood that can be stored in large storage rooms in the house. Agitators or moving floors lead the fuels to a screw conveyor, which they then slide to the combustion chamber in the boiler

Basic knowledge of buying a pellet stove is importantBefore you buy a pellet stove, you must have asked yourself what makes the type of heating stand out. Put simply, a pellet stove is a decentralized heating device that can be used room by room, similar to a fireplace

Different types of firewoodWhen it comes to firewood for wood heating, there is a large selection of different types today. They are often differentiated according to their dry density - the density of the wood with a water content of 0 percent - in hard and softwood

How it works in detailThe way in which wood heating works can create a heating option that is not only extremely effective but also very cost-effective. And there are even more advantages of wood heating to be observed: It is associated with manageable purchase costs

The right technology for heating with woodWood heating ensures a lot of cosiness in your own four walls. It provides cozy warmth and is also environmentally friendly. When it comes to the right heating with wood, hood owners have numerous options

What distinguishes wood?Basically, trees or trees are probably the oldest plants used. Their wood has been and is processed in a variety of ways and is used in everyday life and in industry. Wood is part of human civilization and cultural history

The most common questions about wood burningWood heating is considered to be very economical because wood as a domestic fuel for burning wood is very inexpensive. In addition, the price development is not subject to fluctuations as great as the fuel oil

Raw materials and production of wooden briquettesWhen producing briquettes, large machines press sawdust into different shapes. Remains of forestry and the woodworking industry can be used as raw materials. Roundwood, wood chips, sawdust or wood shavings are particularly suitable for particularly high quality

Wood: renewable raw materialHeating with wood is the trend. No wonder that many home owners choose log heating. Above all, wood as a fuel is CO2-neutral, since exactly the amount of CO2 is released during combustion that was bound in the wood during the growth of the tree

What distinguishes a fireplace?Interesting facts about the fireplaceIn some regions (southern Germany, Austria and Switzerland) the term chimney is also used for the chimney.A fireplace is often referred to as a stove. The stove is noticeably different from the classic fireplace

Typical wood kettles in comparisonCompared to the traditional wood heating, the traditional technology has developed a lot today. For example, wood gasifiers ensure clean and efficient combustion of logs. If homeowners have little time to add more fuel, the fully automatic pellet heating is a real alternative

Fireplace with or without a water pocketA cheap variant of the log heating is the fireplace. It is usually located directly in the lounge and offers a clear view of the burning wood. In addition to a particularly romantic atmosphere, it brings a lot of warmth to the installation room and its neighboring rooms

Fireplace: costs and prices when purchasingWhat does a fireplace cost? This is the question many homeowners ask themselves, longing for the comfortably warming fire in their own living room. However, a clear answer to this question is hardly possible

Find the right stove: decide the requirementsWhen you start looking for a new stove, you are faced with a large selection of different products. Because in addition to the classic Swedish stoves, there are also heat-storing natural stone stoves, robust workshop stoves or multifunctional kitchen stoves

Function and structure of water-bearing fireplacesA water-bearing chimney is similar in construction to conventional stoves. In contrast to these, it has an integrated heat exchanger. The so-called water pocket is flowed through by the heating water during operation and extracts part of its heat from the wood fire

Firewood must be dry enoughSo that wood burns clean, it should be as dry as possible. For example, the first BImSchV (first regulation to implement the Federal Immission Control Act) stipulates a maximum residual moisture of 25 percent. This is particularly important because wet wood emits more pollutants and damages the chimney

Official biomass definition according to European guidelinesTo get rid of any doubts, the European Union has issued a specific definition for the term in the context of its Renewable Energy Directive. Accordingly, biomass is the biodegradable component of products, residues or waste from:agricultureof forestryfishing and aquacultureIn addition, biomass also includes all biodegradable waste that is generated in households and industry

What are pellet heaters? A short explanationIn addition to pellet heating, the Stiftung Warentest also examined pellet stoves. Terms such as pellet boilers or chimneys are often mentioned without explaining how a pellet boiler differs from a pellet stove

The wood gasifier and its componentsA wood gasifier consists of various components:At the heart are two combustion chambers. The upper combustion chamber is the combustion chamber of the actual wood gasifier. In it, the firewood is dried and converted into wood gas, with lighter fractions of the gas also being burned in this combustion chamber

How to properly heat a stove - the best tipsA fireplace provides comfort through the heat radiation from the open fire. To ensure this, however, the combustion of the material, which is mainly used in the form of logs, should be carried out as completely as possible

Properties and tasks of tiled stovesFireplaces and stoves bring cozy warmth into your own four walls. They usually burn wood or pellets and create an atmosphere that invites you to dream and relax. Compared to the simple Swedish stove, a tiled stove consists of a solid, handcrafted body

The fixed meter as one of the units of measurement for woodThe fixed meter, which is also abbreviated to fm or F, is the most commonly used unit of measurement for wood in woodworking practice. A solid meter corresponds to exactly one cubic meter of solid wood mass

Structure and functioning of a water bagIf experts speak of a water bag, it is usually about a heat exchanger (heat exchanger) for chimneys and stoves. It extracts part of its energy from the wood fire and transfers it directly to the heating water

Function of a water-bearing wood stoveIf a wood stove is water-bearing, its basic structure differs only slightly from a conventional fireplace. It consists of a combustion chamber for wood or pellets and directs the resulting exhaust gases to the outside via a chimney

Reasons for a log boilerA firewood boiler, also called wood gasification boiler, is a solid fuel boiler that uses lengthwise split pieces of wood as fuel. It differs from a fireplace in many ways. The latter burns the inserted wood at once, while a log boiler works on the principle of lower combustion

What defines the biomass regulation?In principle, a wide variety of substances or mixtures of substances are summarized under the term biomass. As a rule, they are plant-based. But they can also be obtained from animal materials. Experts also speak of the Zoomasse

Hard and soft firewood: the differenceHardwood and softwood are terms that almost everyone has heard of firewood. Very few people know exactly what they mean. Because many consumers assume that hardwood stands for hardwood and softwood for coniferous trees

Function and structure of the Swedish stoveFireplaces or Swedish stoves basically consist of a combustion chamber in which the inserted logs burn in a clearly visible manner. In addition to a heat-resistant sheet steel jacket, there is usually insulation made of firebrick or similar materials all around the combustion chamber

Structure and function of modern warm air ovensWhen experts talk about a hot air oven, it is usually a manual oven. The heaters are stationary and essentially consist of:a furnace bodya heating inserta post-heating boxWhile the fuels burn behind a transparent disc in the heating insert, the exhaust gases flow through a so-called post-heating box

Function and structure of a classic exhaust flapAs the name suggests, it is a relatively simple and uncomplicated valve. This is located at the end of the exhaust pipe, which in turn opens into the chimney. It is installed between the boiler or stove and the chimney

Production of the wood chipsWood chips are mostly produced in forestry or the woodworking industry. The raw materials are, for example, residual wood or weak wood, which cannot be processed further industrially due to its properties. In addition to the extraction from waste materials, the wood chips are also produced in specially operated plantations

Requirements for a fireplace in the houseWhile there were only cast furnaces in the past, today you have a large choice when looking for wood heating for your own four walls. So you can choose different designs, materials or performance classes

Wood stove: types and their peculiaritiesSwedish stove, cast iron stove, natural stone stove: these are just three designs in which a modern wood stove is available. While they hardly differ in their basic function, the types of wood-burning stove affect their installation rooms in different ways

Reasons for the return flow increase in heating systemsThe purpose of raising the return flow is to keep the temperature of the cooled heating water above a set value. Because especially in the start-up or start-up phase of a heating system, the entire heating energy is initially transferred to the system or the buffer storage