{"id":2873,"date":"2024-07-08T18:51:00","date_gmt":"2024-07-08T18:51:00","guid":{"rendered":"https:\/\/mybuilding24.com\/maintenance-of-biomass-heating-systems\/"},"modified":"2024-09-25T06:45:33","modified_gmt":"2024-09-25T06:45:33","slug":"maintenance-of-biomass-heating-systems","status":"publish","type":"post","link":"https:\/\/mybuilding24.com\/en\/maintenance-of-biomass-heating-systems\/","title":{"rendered":"Maintenance of biomass heating systems"},"content":{"rendered":"\n

Sustainable heat must also be low in emissions<\/p>\n\n

There are a large number of heating systems on the market for a wide variety of energy sources (oil, gas, electricity, biomass, etc.).\nDue to the trend towards renewable heat sources, biomass heating systems are in high demand.\nHowever, every energy source has its own special features, including biomass. <\/p>\n\n

Compared to other energy sources, biomass does not burn completely residue-free and the biomass systems therefore require very special technical attention and maintenance discipline in order to function economically, reliably, for a long time and in an environmentally friendly manner.<\/p>\n\n

What types of biomass fuels are there?<\/strong><\/h2>\n\n

Mostly logs, wood chips, briquettes and pellets are used.<\/p>\n\n

The volumetric calorific value varies depending on the type of wood and wood moisture content and ranges from 1,300 kWh\/ cubic meter for willow to 1,950 kWh for hardwoods such as ash, oak or beech.\nThe gravimetric calorific value of wood is between 3.7 – 4.2 kWh\/kg (e.g. beech or spruce at 20% moisture). <\/p>\n\n

The gravimetric calorific value of pellets and briquettes is around 4.9 kWh\/kg, compared to 11.8 kWh\/kg for heating oil and around 10 kWh\/kg for natural gas.<\/p>\n\n

These values only apply to dry wood.\nAs the moisture content of the fuel increases, the calorific value decreases (e.g. calorific value of beech at 50% moisture = 2.16 kWh\/kg, at 20% moisture = 4.02 kWh\/kg).\nFor this reason, particular attention must be paid to low moisture levels during storage. <\/p>\n\n

What quality standards and certificates are there for pellets?<\/strong><\/h2>\n\n

A standard and 2 certificates have been established on the market to standardize and classify the quality of wood pellets.\nIt is important to distinguish between generally applicable standards and specially issued certificates.\nThe different quality levels must also be taken into account when comparing prices. <\/p>\n\n

Standard DIN EN ISO 17225-2:<\/strong><\/p>\n\n

In the course of international harmonization, the country-specific standards (DIN, \u00d6NORM and SN) and the purely European standard were replaced by the internationally valid DIN EN ISO 17225-2 in September 2014 and last updated in September 2021.<\/p>\n\n

Among other things, it regulates the minimum requirements for the size, quality, calorific value and combustion behavior of the pellets and is divided into classes A1, A2 and B.\nThe classes differ in the raw materials that may be used for production.\nFor example, in the highest quality class A1, only logs and chemically untreated wood residues are used in production. <\/p>\n\n

There are further differences between the classes, for example in terms of ash content or ash melting behavior.\nTo ensure optimum combustion behavior and a long service life of the pellet heating system, class A1 pellets are used almost exclusively in private households. <\/p>\n\n

The wood pellets are available for blowing in, as bagged goods and sing in BigBags.<\/p>\n\n

There are also 2 certificates – DINplus<\/strong> and ENplus A1<\/strong>.\nThe requirements of the certificates exceed the standard in terms of the fines content and mechanical strength of the pellets.\nIn addition, DINplus-certified wood pellets have a lower ash content than specified in the standard. <\/p>\n\n

However, the main advantages of certified pellets cannot be measured in terms of measured values.\nThe benefits for you lie in professional delivery by trained personnel, support in the event of complaints and transparency through traceability from delivery to the production site. <\/p>\n\n

What types of biomass heating systems are there?<\/strong><\/h2>\n\n

Wood gasification boiler:<\/strong><\/p>\n\n

Wood gasification boilers burn whole logs or wood chips and generate heat by gasifying the fuel.\nThese boilers are highly efficient and are ideal for larger heating outputs. <\/p>\n\n

Pellet boiler:<\/strong><\/p>\n\n

Pellet boilers use wood pellets as fuel.\nThese are fed in automatically, ignited and burned in a controlled manner.\nThis means that the heating output can be varied from approx. 30 – 100% as required.\nThey are available from small to large and are therefore well suited for use in residential and multi-party houses as well as for small businesses. <\/p>\n\n

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Lump wood boiler:<\/strong><\/p>\n\n

Log boilers are similar to wood gasification boilers.\nThey burn logs or wood chips directly and without gasification.\nThese boilers are versatile and can be installed with different outputs. <\/p>\n\n

Wood chip heating systems:<\/strong><\/p>\n\n

Wood chip heating systems use wood chips as fuel, are often combined with a buffer storage tank and are in turn suitable for larger buildings or industrial applications.<\/p>\n\n

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Briquette heating systems:<\/strong><\/p>\n\n

Briquette heating systems usually use round or square pressed wood briquettes (similar to pellets, only larger) as fuel.\nLike pellets, these briquettes are made of pressed wood material.\nThey are a practical alternative to logs and are a real option for home use due to their ease of use. <\/p>\n\n

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Remember that choosing the right type of heating depends on your individual requirements, the size of the building and other factors.\nIt is advisable to consult a professional to find the right solution for your needs. <\/p>\n\n

What are the properties of biomass heating systems?<\/strong><\/h2>\n\n

Biomass heating systems are an environmentally friendly and efficient way of generating heat.\nHere are some features of biomass heating systems: <\/p>\n\n

Cost-effective heating:<\/strong><\/p>\n\n