Brief glossary

  • A
    • Ambient air fan (optional)

      • The ambient air fan (or convection fan) is an optional fan that can be installed in the pellet stove to facilitate more rapid heat distribution. In principle our pellet stoves operate with natural convection heat. However, if the stove is to be operated continuously at a high power level to heat an adjoining room, for example, the subsequent installation of an ambient air fan is recommended to produce a more rapid heat transfer.

    • Ambient air fan (standard)

      • The ambient air fan (or convection fan) is installed in the pellet stove to facilitate more rapid heat distribution.

    • Ambient air-independence

      • A stove always needs a supply of fresh air for operation. Normally the combustion air for a stove is extracted from the room in which it is installed. In the following circumstances, however, the combustion air should be supplied from outside, meaning the stove is operated in an ambient air-independent manner:

        • If there is a particularly dense building envelope, thereby resulting in an inadequate exchange of air for the firing process. This is particularly the case in modern, energy-efficient buildings.
        • If an extractor hood and a stove are to be operated simultaneously - if a controlled, mechanical room ventilation system is present. More information can also be found in our stove adviser.

        SPECIAL NOTE: Please note the differenct national regulations conercing ambient air independence. For further information please contact your RIKA dealer.

    • Article 15a of the B-VG (Federal Constitutional Law)
      • Inspection in Austria: Article 15a of the B-VG (Federal Constitutional Law) regulates the marketing and inspection of firing systems in Austria.
    • Austrian Eco-Label

      • The Austrian Eco-Label is a seal of approval awarded by the Austrian Federal Ministry of Agriculture, Forestry, Environment and Water Management which characterises environmentally friendly products and services. The following woodburning stoves have received the award: Cult 6 kW, Vitra S 6 kW, X-Back 6 kW, X-Cook 7 kW, Viva 8 kW, Scena 10 kW, Jazz 7 kW, Eco 8 kW, Eco Plus 8 kW, Fox 8 kW. The following pellet stoves have received the award: Revo 9 kW, Rio 8 kW, Visio 8 kW, Premio 8 kW, Memo 9 kW, Como 9 kW, Topo 10 kW

    • Automatic ash removal

      • Automatic ash removal with tipping grate extends the cleaning intervals for the combustion cavity

  • B
    • 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.
  • C
    • Capacity

      • The capacity of the pellet hopper is stated in kilograms

    • Capacity of pellet container

      • Each RIKA pellet stove is equipped with a pellet container, from which the pellets reach the combusion chamber. Depending on the pellet stove, up to 62 kg pellets can be stored in the pellet container.

    • Ceramic stove top

      • If you have an integrated ceramic stove top you can use the heat from the fire for cooking and preparing dishes.

    • CO-value

      • The CO-value (mg/MJ) measures the carbon monoxide emissions, related to the energy content of the fuel.

    • CO-value (full load)

      • The CO-value (mg/Nm3) full load measures the carbon monoxide emissions, related to 13% O2 (residual oxygen).

    • Combi stove

      • The RIKA combi stove can be fuelled with pellets and with logs – with no need for conversion or changeover, even within a single combustion process.

    • Combustion cavity

      • The pellets are conveyed from the pellet hopper into the combustion cavity. In RIKA stoves, the pellet transport is virtually silent (no intermittent feed noise). RIKA's patented self-cleaning system reduces the need for combustion cavity cleaning to a minimum.

    • Comfort

      • Comfort is an important planning criterion. Several factors, including the surface temperature of the surrounding walls, air temperature, humidity and air movement (flow rate) are critical for the perceived level of (thermal) comfort. Natural heat such as that generated by burning wood in a woodburning or pellet stove creates a comfortable and healthy climate in your home.

    • Condensation
      • Condensation occurs when the temperature falls below the dew point in the flue gas channels.
    • Condensation
      • Condensation occurs when the temperature falls below the dew point in the flue gas channels.
    • Construction
      • The construction describes the shape of the stove. A small construction depth, for example, is ideally suited for a cramped installation location (e.g. in a corridor).
    • Construction type
      • DIN 18891 distinguishes between construction type 1 and construction type 2 stoves. Type 1 appliances possess a self-closing door and should only be operated when the door is closed. Type 2 stoves may be operated when the door is open (e.g. open fireplace).
    • Construction type 1
      • According to DIN 18891 stoves must be fitted with a self-closing door if the door opening is greater than 0.05 m². As the multiple use of a chimney is permitted in Germany, construction type 1 stoves are prescribed in order to prevent endangering any person in other residential units that are connected to the chimney. All RIKA models are equipped according to construction type 1.
    • Continuous wood burning
      • A continuous wood burning phase is present if a combustion stage (0.45 hours to 1.30 hours) and an ember stage of up to 4 hours is possible.
    • Convection air
      • Air is sucked through the stove from below, warms when ascending and emanates from the top as hot air (= convection air). We speak interchangeably of convection air appliances and warm air appliances. An advantageous factor is the natural convection (for all appliances) without a fan: no electricity is required, there are few moving parts that are subject to wear and tear and, above all, there are no noise emissions. As a rule, stoves typically operate with approx. 30 % radiant heat and 70 % convection air.
    • Convection air openings
      • Convection heat enters the room via the convection air openings.
    • Convection heat
      • Convection heat is caused by air heating up on hot surfaces, e.g. radiators. As warm air is lighter than cold air, this air moves upwards (convection). In order to ensure optimum comfort in the room a sufficiently high proportion of radiant heat is required in addition to the convection air. As a rule, stoves typically operate with 30% radiant heat and 70% convection heat.
    • Cooking compartment

      • If you have an integrated cooking compartment you can use the heat of the fire to prepare delicious dishes and casseroles or bake bread - without using any electricity!

    • Corner stove

      • The stove is particularly suitable for installation in a corner due to its body shape. Of course, the stove can be positioned against a wall as well.

  • D
    • 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.
    • Dekorvarianten

      • With a wide range of stone and decorative casings available, the design of a RIKA stove can be adapted to suit the customer.

    • 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).
  • E
    • Efficiency factor

      • The efficiency factor illustrates the relationship between the quantity of heat emitted and the fuel supplied. E.g.: an efficiency rating of 70 % means that 70 % of the fuel is used to heat the room, while 30 % is lost as flue gas through the chimney. A high efficiency factor reduces fuel costs and protects the environment. The efficiency factor of an open fire is only around 10 %. The current requirement for stoves is an efficiency factor of at least 73 to 78 % (depending on the various country-specific regulations). RIKA woodburning stoves which are equipped with innovative Rikatronic³ technology achieve an efficiency factor of up to 80 %. RIKA pellet stoves now have an efficiency factor of at least 90 %!

    • Emissions
      • The release of substances, energy and radiation into the environment from a particular source is referred to as an 'emission'. In fuel technology (combustion) the term 'emission' refers to the discharge of air pollutants, such as sulphur dioxide, nitrogen oxide, carbon dioxide, carbon monoxide, coarse dust, particulate matter or soot. In terms of acoustics it relates to the noise generated from a source object. In terms of thermodynamics emissions are a measure of the energy loss caused by the radiation of long-wave infrared radiation (thermal radiation). Emissions are thereby always related to a specific source, such as an industrial plant, a particular product (e.g. packaging, mineral wool, car), etc. The prevention or minimisation of emissions is the main objective of a sustainable environmental protection policy (end-of-pipe), as it, in contrast to immission control, does not combat the effects of pollution, but rather its cause.
    • Energy efficiency class
    • Energy efficiency class

      • Class for the space heating energy efficiency

    • Exhaust gas temperature

      • The exhaust gas temperature is the temperature of the hot combustion gases (exhaust gases). It is dependent on the fuel, the type of combustion and the heat generating appliance. In order to achieve a high degree of energy efficiency, the exhaust gas temperature should be as low as possible (construction-dependent).

    • External air connection

      • If there is an external air supply, the combustion air for the heating appliance is supplied from outside. This is also known as an external air connection or ambient air-independent operation. Normally the combustion air for a stove is extracted from the room in which it is installed. In the following circumstances, however, the combustion air should be supplied from outside (ambient air-independent manner): - if there is a particularly dense building envelope, resulting in an inadequate exchange of air. This is particularly the case in modern, energy-efficient buildings. - if an extractor hood and a stove are to be operated simultaneously - if a controlled, mechanical room ventilation system is present.

    • Extremely flat construction
      • Stove Topo is characterized by its minimal installation depth, which makes the stove suitable for being positioned in narrow housing situation e.g. ini a corridor.
  • F
    • 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 mass flow is the air mass and the gassed amount of fuel, which are emitted compoundedly through the chimney.

    • Flue gas temperature
      • When leaving the chimney the flue gases should have reached a temperature of at least 70–80°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").
    • Fresh air floor connection

      • Fresh air supply possible across the floor

  • H
    • Holding compartment
      • If you have an integrated holding compartment you can use the heat of the fire to keep your dishes and beverages warm.
    • Holzenergie Schweiz (Wood Energy Switzerland)

      • Wood Energy Switzerland promotes a sensible, environmentally friendly, modern and efficient use of wood and it awards its quality seal to those stoves which produce particularly low emissions and exhibit a high degree of efficiency. The following woodburning stoves have received the award: Como, Cult, Eco, Eco Plus, Fox, Tara, Impera, Imposa, Induo, Jazz, Memo, Miro, Premio, Rio, Visio, Roco, Kapo, Scena, Topo, Tura, Twist.

  • L
    • 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!
  • M
    • Minimum supply pressure

      • The minimum supply pressure is an important factor for your chimney sweep. You can find the corresponding information in the instructions for your stove.

    • Multi Air

      • This RIKA stoves can, depending on the model, pass the heated convection air into 1-2 other rooms.

    • Munich fuel regulation

      • Munich's Brennstoffverordnung (Fuel Regulation) imposes requirements now under the 1st Bundesimmissionsschutzverordnung (Federal Immission Control Ordinance), Stage 2. In addition, emissions of nitrogen oxides (Nox) in the flue gas must not exceed a mass concentration of 0.2 g/m³ based on oxygen content by volume of 13 % under standard conditions (273 K, 1013 hPA) and at rated heating output.

  • N
    • Nominal heating capacity

      • This is the "normal heating capacity" determined according to DIN 18891. The stove is checked and the room heating capacity is determined according to this rating. The nominal heating capacity is particularly crucial for a safe heating procedure and the functionality of the chimney. The combustion of a defined quantity of fuel is necessary to achieve the nominal heating capacity. This quantity of fuel is specified in the instruction manuals provided with RIKA stoves. The actual heating capacity of a stove is determined by the amount of fuel actually applied. The following applies as a "rule of thumb": 1 kg of wood generates a heating capacity of around 3 kW in a stove.

  • O
    • Output (kW)

      • The output rating in kW (kilowatts) provides information about the heating capacity of the stove. The higher the kW rating, the greater the heating capacity. The output of a firing system is the useful amount of heat emitted in continuous operation per unit of time. Power rating (old): Calorie (cal) kilocalories (1000cal) = 1 kcal = 1 thermal unit TU Power rating (new): Watt (w) = 1 J/s, 1 kW = 3.6MJ/h = 860 kcal.

  • P
    • Panel flushing

      • The panel flushing system patented by RIKA channels preheated combustion air (secondary air) from above the panel down into the combustion chamber where it creates a protective "air cushion" around the panel. This ensures your panels are kept free from smoke and soot over a prolonged period.

    • Pellet consumption

      • Pellet consumption depends on factors such as the insulation of the house, the quality of the pellets and, above all, the functionality of the stove.

    • Pellet-Stove-Select-O-Mat
      • Our Pellet-stove-Select-O-Mat helps you to find the RIKA pellet stove that's right for you. You can make your individual choice of different important criteria when purchasing a stove - depending on your personal demands. With just one click you can find out which pellet stoves are right for you.
    • Pellets

      • Pellet stoves are heated with this fuel. Pellets are pressed from wood residues. They are produced from natural, untreated wood without the addition of any binding agents. The wood is bound by its natural binding agent LIGNIN. Diameter: approx. 6 mm / length: max. 30 mm / water: < 8 % (by weight) / ashes: < 1 % (by weight) / dust: < 1 % (by weight) / bark: < 5 % / calorific value: 5.1-5.3 kWh/kg / bulk density: 650-700 kg/m3

    • Permanent heating
      • Permanent heating is where a suitable fire burns continuously day and night with a continuous air supply, with the temperature only being reduced at night.
    • Powerstone

      • The new thermal storage system achieves optimum thermal storage with maximum efficiency.

    • Price
      • The prices shown refer to the basic version of the stove. For the final price, including your desired specifications (colour and material) and accessories, please contact your dealer.
    • Primary 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.

    • Pyrolysis phase
      • The burning of wood can be divided into three phases: Drying, degasification and oxidation. In the first phase the wood is dried by the heat. In the second phase (pyrolysis) a degasification and thermal decomposition of the wood takes place. Wood predominantly consists of volatile components which are released by heat, thereby resulting in the generation of flammable gases such as hydrogen and carbon monoxide. These burn immediately when provided with a sufficient supply of upper air (secondary air). However, these are also accompanied by fire-resistant gases (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. The wood turns into charcoal during this phase. The temperature increases from 150 to 550 degrees Celsius. During the third phase (oxidation) the combustible gases react with the atmospheric oxygen supply. This occurs at a temperature of approx. 400°C and above. At the same time the gas is also oxidised from the charcoal, whereby energy is released. This leaves the non-combustible components of wood, also known as ash (0.5% -1%, depending on the proportion of bark).
  • Q
    • Quiet operating mode

      • Due to our new, innovative non-pulsing pellet delivery method this stove is extremely quiet. The annoying "click" sounds are completely eliminated by this method.

  • R
    • Radiant heat

      • In contrast to convection heat (e.g. radiators), radiant heat does not heat the air, it heats the objects in the room. Consequently it causes very little movement of the air (so it won't stir up dust) and does not dry out the air in the room.

    • 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.
    • RIKA FIRENET (Accessories)

      • Mobile control via Internet and wireless home network

    • RLS

      • The RIKA air distribution system (RLS) allows you to control and optimise the supply and distribution of air in the stove using one simple hand movement.

    • Room heating capacity

      • Stoves should never be too large for the area of installation, otherwise this could 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. Basically, there are 4 insulation categories: built before 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 optionally rotate up to 360 degrees, depending on the model, allowing you to enjoy the sight of the flickering flames from anywhere in the room.

        IMPORTANT NOTES: In the case of the VITRA model, the optional turntable must be ordered for the rotating function. The TWIST model is offered as a rotating version. This cannot be combined with room sealed operation. Our RIKA dealer will be happy to advise you further.

  • S
    • Sandstone

      • Sandstone is a sedimentary rock (also called "aqueous rock") consisting of grains of sand cemented together that are predominantly made up of quartz.

    • 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.
    • 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.
    • Single handed operation

      • Single handed operation makes adjusting the combustion air supply easy and convenient

    • 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.
    • Solvent-free

      • The paint used on RIKA stoves is virtually solvent-free, for odourless heating from the very first day.

    • 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.
  • T
    • Telephone modem (optional)

      • You can control your pellet stove electronically from your workplace, for example, via your mobile phone (e.g. via SMS).

    • Thermostat (optional)

      • Control via thermostat and saved heating times; automatic output adjustment.

    • 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.
    • Top flue pipe connection

      • Top flue pipe connection

    • Touch Display

      • The intuitive touch display allows you to control all functions with the greatest of ease.

    • 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.
  • U
    • UNKNOWN

      • Our glossary is going to be extended permanently. However, unfortunately the term you looked for is not available yet.

    • 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.
    • USB port

      • The USB port allows you to update software quickly and easily, so that your stove will continue to have the latest functions also in future.

  • V
    • 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.
  • W
    • Warm App

      • A graphical interface for smartphones and tablets (iOS Apple, Android) greatly facilitates the remote control of your stove.

    • Weather inversion
      • This is the designation of a weather situation which exhibits a stratification of air (usually characterised by calm or light winds). The temperature of the air layers normally decreases with an increasing altitude. Warm air masses, or e.g. exhaust gases, can rise to great heights because they have a lower density than the cooler ambient air. In the event of an inversion relatively warm layers of air typically occur at a height of 300-400 m above the cold layers of air close to the ground. The result is that rising exhaust gases, for example, lose their ascending force at a certain height and are held at this inversion layer as if they were under a bell jar.
    • Wood retainer
      • The wood retainer directs the upper air flow to the primary zone in a targeted manner and promotes turbulent flow.
    • Woodburning-Stove-Select-O-Mat
      • Our Woodburnin-Stove-Select-O-Mat helps you to find the RIKA woodburning stove that's right for you. You can make your individual choice of different important criteria when purchasing a stove - depending on your personal demands. With just one click you can find out which woodburning stoves are right for you.