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Brief glossary
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BimSchV - IThe Federal Immission Control Ordinance (BimSchV) has been amended in Germany. New requirements, for example, should limit emissions of particulate matter and enable climate change targets to be achieved. This is also relevant for stoves. These targets can be supported through high quality woodburning and pellet stoves. Inferior appliances will no longer be able to be built or operated after the defined deadlines.
Adherence to the limit values is implemented in 2 stages:
1st stage: After the regulation comes into effect
CO: 2,000 mg/m³
Dust: 75 mg/m³
2nd stage: From 1 January 2015
CO: 1,250 mg/m³
Dust: 40 mg/m³
Installations which do not comply with either stage 1 or stage 2 must be retrofitted with filters (or other similar measures) or they must be decommissioned.
Stoves that fulfil stage 1 and have been built prior to stage 2 coming into effect, however, fall under the grandfather clause and do not need to be upgraded!
All RIKA models fulfil the requirements of the 1st stage and thereby fall under the grandfather clause. A large proportion of models already fulfil the requirements of the 2nd stage.
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Deficiency of air - Lack of oxygen can result in inadequate combustion temperatures that will only cause the wood to char. Smouldering residues with a high tar and water content then split off, which results in heavy contamination and sooting of the flues, glass doors, chimney, etc. (smouldering fire)! In this case it partly gives off unburned (yellow) tar vapour and partly (black) carbon vapour. When wood burns incompletely the parts containing cellulose that have only been partially broken down normally produce an unpleasant smell.
Dew point - The dew point is the flue gas temperature at which the exhaust gases are saturated with water vapour. If the temperature falls below the dew point, it results in condensation forming in the flue gas channels. In order to avoid this the temperature of the flue gases when leaving the chimney should be at least 70-80°C; this requires a flue gas temperature of around 150°C upon entering the chimney (depending on the chimney system). The use of damp wood increases the dew point.
DIN Plus - The strict criteria of the DIN 18891 standard are expanded through enhanced requirements relating to emission protection (e.g. maximum quantities of particulate matter).
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Fireclay - In general linguistic usage all fire-resistant bricks and lining elements are often referred to as fireclay. In technical usage the term fireclay refers to a rock-like, man-made, fire-resistant material with an aluminium oxide content of 10 to 45%. The word Scharmotte (fireclay) was allegedly coined in the 18th Century by Italian porcelain workers in Thuringia (sciarmotti, scarmotti) based on "Schärm" or "Scharm", the Thuringian pronunciation for "Scherben" ("shard").
Flue gas mass flow Flue gas temperature - When leaving the chimney the flue gases should have reached a temperature of at least 7080°C in order to prevent the formation of condensation. This requires a flue gas temperature of around 150°C upon entering the chimney (depending on the chimney system) (see "Dew point").
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Leak air - Leak air passes into the stove's combustion chamber as a result of non-tight components (e.g. defective door seals). Leak air, which enters the heating appliance in the area of the primary air flap, can intensify the combustion process and cause the appliance to overheat if there is a low heat requirement. Leak air around the filling door cools the exhaust gases and reduces efficiency levels. If there is a low heat requirement, this defect may even extinguish the embers.
Lower air - The primary air or lower air is the air flowing in through the ash cavity across the vibrating grate. The primary air requires the stove to be in the heating phase. When the wood burns fresh air is no longer required from below. This flow of air can be regulated by an air intake register.
If your stove is equipped with the intelligent RLS air distribution system, the distribution ratio of the primary and secondary air/lower and upper air is determined automatically.
LRV Clean Air Act (CH) - The Clean Air Act (LRV) has been changed in Switzerland. The Swiss Federal Council decided to revise and sharpen up the Clean Air Act (LRV) of 1985. 2 stages were planned in this regard.
1st stage: From 1 January 2008
CO: 1,500 mg/m³
Dust: 100 mg/m³
2nd stage: From 1 January 2011
CO: 1,500 mg/m³
Dust: 75 mg/m³
All RIKA models already fulfil the requirements of both the 1st and 2nd stage!
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Minimum heating power Minimum supply pressure Munich fuel regulation - The Munich fuel regulation imposes more stringent emission limits than the EN standard that is in force across the country.
Limit values
(based on a volume content of oxygen in the exhaust gas of 8% or 13% under standard conditions (273 K, 1013 hPa) and a nominal heat output)
Carbon monoxide: 1,500 mg/m³
Dust: 75 mg/m³
Nitrogen oxide (NOx): 200 mg/m³
All RIKA models already fulfil the requirements of the Munich fuel regulation
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Radiant heat - Radiant heat is generated via long-wave infrared radiation in accordance with the principle of solar radiation. This feels very comfortable on the skin and stoves that operate with this heat generate an even and dust-free environment.
Conventional central heating elements distribute the majority of their heat via convection, which is why they are placed underneath a window. To a large extent this only heats up the air.
Optimum comfort for a pleasant living environment can be obtained through the use of radiant heat stoves, woodburning stoves, pellet stoves or fireplaces.
Regensburg standards - The Regensburg standards impose more stringent emission limits than the EN standard that is in force across the country.
Limit values
(based on a volume content of oxygen in the exhaust gas of 13% under standard conditions (273 K, 1013 hPa) and a nominal heat output)
Carbon monoxide: 1,500 mg/m³
Dust: 75 mg/m³
All RIKA models fulfil the requirements of the Regensburg standards.
Rikatronic ® RIKATRONIC® is a fully automated, sensor-controlled regulator that supplies the stove with the exact quantity of air required at each stage of the combustion process. This has many advantages, including, for example, up to 50% less wood consumption. >> You can find more information about RIKATRONIC® here.
RLS Room heating capacity - Details relating to room heating capacity provide you with a decision-making aid for selecting the rating of your stove. Stoves should never be selected so that they are too large for the respective area of installation. The performance of appliances that are too large must be continually reduced, thereby causing them to operate below their optimal level. This can result in the viewing panel steaming up and all smoke-conveying components becoming contaminated through condensing flue gases.
The room heating capacity of a stove is specified in 3 different sizes pursuant to DIN 18893. These details are fundamentally based on the properties of the room in which the stove is going to be set up:
- The most favourable heating conditions are generated by south-facing rooms that have just one outer wall.
- Less favourable heating conditions are generated by rooms that have just one outer wall, but unheated adjacent rooms.
- The most unfavourable heating conditions are created by north-facing rooms that have two external walls.
A general rule of thumb is that you can heat at least 15 - 20 m3 of room per kW of nominal heat output.
Room size - The dimensions of the room are used as a guide for selecting the stove. Depending on the size of the room and house insulation present, the same stove can be used to heat a larger room (with good insulation) or a smaller room (with poor insulation).
Basically, there are 4 insulation categories: built bevor 1970 (very poor insulation), renovated building 1970 - 1990 (average insulation), new building (good insulation) and energy saving building (very good insulation. For further information please contact your RIKA dealer.
Rotatable - The stove can be rotated by up to 360 degrees depending on the model. This enables you to enjoy a view of the flames from various locations in the room.
SPECIAL NOTE: For rotatable version, models Cult and Vitra have to be ordered with the optional turntable. No ambient air independence in combination with rotatability. For further information, please contact a RIKA dealer in your vincinity.
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Sandstone - Sandstone is a sedimentary rock (also called "aqueous rock") consisting of grains of sand cemented together that are predominantly made up of quartz. The grains of sand range between 0.063 and 2 mm.
Sealing lip - RIKA glass floor panels are fitted with a sealing strip to prevent dirt and humidity penetrating under the edges of the panel and becoming visible. To conceal the glued-on sealing lip, the glass panels are printed at the edges. This facilitates the cleaning process and preserves the visual appearance.
Secondary air - The upper air, which is also referred to as secondary air, is the air required by the stove during the combustion and ember stage. This is supplied externally and contributes to a good combustion phase and also ensures the glass panel is kept clean (panel flushing). The air is channelled from above the panel and into the combustion chamber.
After reaching the operating temperature (when the wood is burning sufficiently) the amount of air is regulated via the secondary air supply. The upper air supply, however, should never be closed completely during the firing stage, as this is the combustion air and it can lead to a blackening of the panels.
If your stove is equipped with the intelligent RLS air distribution system, the distribution ratio of the lower and upper air/primary and secondary air is determined automatically.
Self-cleaning system - A pre-programmed hourly cleaning process, during which the supply of pellets is temporarily interrupted, ensures the combustion cavity is blown free of any ash residues by increasing the speed of the flue gas fan.
Smouldering gases - During the pyrolysis phase (the burning of wood), fire-resistant gases also escape (so-called smouldering gases). Due to their aggressive nature and good heat output these should not end up in the heat exchanger, chimney or the surrounding environment.
Soapstone - Soapstone (schist, steatite; Italian pietra ollare; French pierre d'ollaire) is a group of natural stones that primarily consist of magnesium silicate/talc in a dense configuration. The stone is mined almost everywhere in the world. The stones can vary by region in terms of hardness and brittleness due to their composition. Minor components include magnesite, serpentine and various chlorites. Soapstone is ideally suited for use as a heat storage stone for stoves.
Storage mass The storage mass of the stove is a crucial factor in determining how long it will retain and transfer its heat to the room after the fire has gone out. Basically, the higher the storage mass, the longer the stove will emit heat after the fire has gone out.
Stove dimensions - The stated dimensions refer to width (W) x height (H) x depth (D) of the stove.
SPECIAL NOTE: Please note the differeing heights and widths when ordering a stove including a turntable or a base. For further information please contact your RIKA dealer.
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Telephone modem - You can control your pellet stove electronically from your workplace, for example, via your mobile phone (e.g. via SMS).
Time burning - Time burning is when a larger quantity of wood is burned over a specific period of time (1-2 hours) and the energy, which is stored in the stove, is emitted later as radiant heat (e.g. soapstone stoves). For more information, please refer to the instructions supplied with the respective RIKA stove.
Triple values - The triple values are required by chimney sweeps for conducting a chimney calculation. These include the following three values:
1. Exhaust gas mass flow (closed)
2. Minimum supply pressure at nominal heat output (closed)
3. Exhaust gas temperature
You can find the corresponding information in the instructions for your stove.
TSG GLASS - Toughened safety glass. RIKA glass floor panels are exclusively manufactured from 6mm TSG glass. The glass is thermally pre-tensed so that, if damaged, it does not shatter into sharp-edged fragments but instead into small blunt pieces of glass. This practically excludes all risk of injuries.
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UNKNOWN Upper air - The upper air, which is also referred to as secondary air, is the air required by the stove during the combustion and ember stage. This is supplied externally and contributes to a good combustion phase and also ensures the glass panel is kept clean (panel flushing). The air is channelled from above the panel and into the combustion chamber.
After reaching the operating temperature (when the wood is burning sufficiently) the amount of air is regulated via the secondary air supply. The upper air supply, however, should never be closed completely during the firing stage, as this is the combustion air and it can lead to a blackening of the panels.
If your stove is equipped with the intelligent RLS air distribution system, the distribution ratio of the lower and upper air/primary and secondary air is determined automatically.
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Vibrating grate actuator - The reciprocating motion of the vibrating grate actuator causes the ash to be transferred from the combustion chamber to the ash drawer. This leaves the path clear in the combustion chamber for the primary air, which is conducive to the heating phase.
It is not necessary to actuate the vibrating grate during the heating phase.
VKF AEAI - VKF AEAI is the Vereinigung Kantonaler Feuerversicherungen (VKF) (Cantonal Fire Insurance Association) and it functions as the service and competence centre of cantonal building insurance companies for all activities associated with prevention on a national and international scale.
The VKF is responsible for the coordination and standardisation of fire safety in Switzerland and its harmonisation with the EU. The VKF is also an accredited certification body for specialist personnel involved with fire protection installations.
All models of RIKA stove are certified and approved by the VKF AEAI in terms of fire prevention.
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