Coal heating
The term coal heating - also known as coal firing - is used as a generic term for systems that generate heat for various purposes by burning coal (for house firing , hard coal , coke or lignite briquettes ).
Types
Air heating
Lignite briquettes are now often used as co-fuel or as the main fuel in wood heating systems , tiled stoves and in side stoves . In the case of hard coal, due to the higher combustion temperature, an insert must be present in order not to damage the furnace.
Hot water and central heating
When it comes to supplying hot water to houses, coal only has a niche position these days. This is due to the previous disadvantages of coal heating, which still have an effect today. In the past, the coal had to be laboriously transported to the in-house warehouse - mostly a bunker in the cellar. If necessary, it was then transported to the coal heating system with a shovel or coal chute. After the coal had burned down, the ashes had to be removed again.
Using modern technology , solutions to these problems have been sought in recent years. The disadvantages of coal heating could be partially eliminated with the coal-fired heating. Today, coal heating usually has an automatic charging system, which allows the heating to be operated for several days or weeks without manual intervention. The burning process has been optimized and ash disposal has been simplified. In terms of the amount of work required, coal heating is now comparable to pellet heating.
Prices
Currently, the purchase of a coal heating system costs a little more than a comparable oil or gas heating system . The price of coal is - based on the energy content - significantly cheaper than gas and oil .
Individual evidence
- ↑ see also energy from the stove - energy content of different types of wood compared with heating oil and natural gas. A free web app for users of wood-burning stoves