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Multi Fuel Boiler Stove Multi-fuel boiler stoves burn different types of logs as well as smokeless fuels, coal and even smokeless. They can also be 'linked to your heating system to save money. When burning coal, the grate has to be removed to allow air to reach the fire from below. Some multi-fuel stoves have a riddling grates and asphans to make this process easier. Energy Efficiency Multi fuel stoves burn a variety of solid fuels, including peat, turf briquettes and smokeless coal. They can also burn logs. They are more versatile than stoves that burn wood because they can be used with a range of fuels. Most modern Ecodesign compliant stoves have an overall efficiency of around 80% plus. This means that they produce less CO2 emissions and aid in meeting SAP energy requirements for primary heating. A lot of homes in the UK make use of a wood-burning multi fuel stove to heat their living rooms and also have central heating systems (either gas boiler or hot water cylinder) as the main source of heating. This is usually supplemented by a second type of heating, such as an air or convection hot water stove. The efficiency of the overall performance of a stove is important because it is a reflection of the amount of heat delivered to the house. It should not be confused with the stove's efficiency in combustion, which is shown on the side. The combustion efficiency is related to how efficient the stove was in the laboratory test. It does not reflect the efficiency of the complete system of chimney, stove and fuel, and is not equivalent to System Efficiency which is the figure that should be used. In their marketing materials, stove manufacturers often refer to the efficiency of combustion instead of System Efficiency. This is a mistake. Instead of being a measurement of how well the stove did in a laboratory test System Efficiency is a measure of the energy-based total emissivities (TE) from the fuel and the stove when it is used and installed in a household. Note that the TE of a specific combination of fuel and stove is based on the volatile matter content in the solid fuel, since it will determine if particulate-bound pollutant (e.g. PM2.5, EC and BaPeq) are emitted during fuel ignition or if they are retained in the pyrolysis stage. If the volatile matter remains in the pyrolysis phase, it releases carbonaceous particles that aren't bound effectively and contribute to the total emissivities. Low Maintenance Non-catalytic stoves require less maintenance and are less complicated to use than catalytic stoves. These models are less expensive and feature an air-combustion system that is pre-heated to increase the efficiency of the stove. They can burn a variety of solid fuels, including smokeless coal. They also have a primary air control which lets you control the rate at the fire is burning. This allows you to achieve a more efficient and effective fire, with greater flame spread and lower emissions. You'll need to replenish your stove every 10-14 hours, depending on the way you use it. You'll also have to empty the ash pan frequently. If you are using a smokeless coal stove, then the ash must be cleared to avoid it blocking the combustion air passages, and also causing the fuel to be depleted of oxygen. This can be done using the simplest tool that looks like pitchforks. BTU ratings are a good indicator of the power of a multi-fuel stove. But they shouldn't be the only specifications you compare when comparing models. Other factors like the size of the burner and weight can have just as big an impact on overall performance. Modern multi-fuel stoves can utilize various liquid fuels including white gas, kerosene, and isobutane. This makes them ideal for backpacking trips, particularly in remote areas where canister fuel might not be available. Multi-fuel liquid-fuel stoves are usually equipped with a regulator that helps you manage the amount of fuel used. They're also more efficient than stoves powered by canister fuel and are able to perform well at higher altitudes as well as in cold temperatures. Some multi-fuel stoves are able to be used with wood. This lets you become more independent by reducing your dependency on purchased fuel. It is important to remember that using a multi fuel stove with wood could result in more harmful emissions, and isn't recommended unless you have the proper precautions in place. Thermostat Control When it comes to multi-fuel stoves one of the most popular is a boiler stove. It's an excellent choice for those who wish the stove to heat their water and their room. The boiler stove can heat a tank of water inside the stove, or be connected to an central heating system made of gas or oil system in order to supplement its energy output. These types of stoves can also be utilized in smoke-controlled zones because they can burn a variety solid fuels. Modern stoves come with thermostat controls which allow the user to alter the amount burned. This controls the amount of heat produced. This feature can save money by ensuring the maximum amount of heat is produced from each piece of fuel. Boiler stoves are able to be used with a range of different fuel types, including peat, wood and smokeless coal. The majority of multifuel stoves allow you to select different kinds of fuels when making a fire. This is because the different types of fuel require slightly different airflow to burn correctly. Smokeless coal, for example requires combustion air to flow through. Most multi-fuel stoves have an open or partly riddling grates that are open to allow air to flow through. The grate should be cleaned frequently to avoid a accumulation of ash that can stop the flow of air and cause the fire to die. All multifuel stoves, regardless of whether they are a boiler stove or not, will be capable of transferring some of their heat into the domestic hot water tank. The exact amount of hot water that can be provided by a stove is contingent on the model, however generally they can be capable of powering up to eight standard sized radiators. Some models, such as the Stovax View 8, are capable of achieving this feat with a stunning heat output of up to 4.9kW to the room and 8.2kW to the boiler, which is enough to heat the majority of domestic radiators inside a house. Ideal for Smoke-Controlled Areas The capability to burn different types of smokeless fuels makes a multi-fuel stove a great choice for those living in Smoke Control Areas. This means you can avoid the need to store and carry logs or briquettes that are not always readily available, or travel further away to buy these items. Multi-fuel stoves are more modern looking than open-fire stoves and have a wider range of sizes that will suit homes with various styles of interiors. These types of stoves are referred to as DEFRA Approved or exempted solid fuel appliances and are tested to ensure that they meet strict emission standards, especially when burning'smokeless' fuels. These stoves are perfect if you reside in a place that has a lot of smoke-producing structures. They will reduce the amount of black fumes produced by your heating system. A DEFRA-approved stove can be used to burn a variety of solid fuels like anthracite or smokeless Briquettes. However, certain kinds of fuels are not burnable at all and it is illegal to use certain fuels unless you have possession of an exemption certificate for smoke control. This kind of stove can be adapted to accept gas and oil sealed heating systems or even underfloor heating, depending on the model you select. They could also come with an option to allow them to be 'linked up' with solar panels or other renewable energy sources dependent on the specific model. A multi fuel boiler stove is usually fitted with an opening in the glass that allows you to view the fire and the flue through which the combustion gases are drawn and expelled from the appliance. It will also have an open fire grate which you can put your fuel on and the air supply to the flames is controlled via an adjustable slider located at the bottom of the stove's door. Certain models come with secondary air flow systems that injects pre-heated secondary air or tertiary air into the combustion chamber above the fuelbed. This reduces emissions by burning non-burned hydrocarbons in the fume before it is blown upwards into a chimney system.