A non- commercial service in support of responsible home heating with wood. A stove that has been tested and certified as meeting a safety standard has a label on the back showing how much clearance is needed from combustible material like walls and furniture. This information is also found in the manufacturer's installation instructions. If there is no label, the stove is not certified. Each country, and sometimes jurisdictions within countries, have their own rules. If you don't have access to a code and no wood heat dealer or inspection agency or insurance company to provide advice, use these figures for safety. Otherwise, use the clearances enforced by code locally. Almost all new wood stoves currently offered for sale have been safety certified and most insurance companies will only accept certified appliances. Stoves that are not tested and certified include used or antique stoves or stoves that have been built by small, informal welding shops. It is a good idea to avoid uncertified stoves for serious heating because their safety and efficiency are likely to be inferior and many insurance companies refuse to cover houses containing them. Also, because they have not been tested, their performance is unknown, so the minimum required clearances to combustible material are very large: 1. Can You Install a Wood Burning Stove If You Don't Have a Chimney? Stove installation and fitting UK. Help & Information. Stove Help, Advice, FAQ; Stove Building Regs; Stove Installers. Wood burning stoves; Multi fuel stoves; Contemporary stoves. Find out how to install a wood burning stove in this article from HowStuffWorks. Do you know how to maintain and repair your minor kitchen equipment? Installing a wood burning stove in a commercial kitchen. November 20, 2013 Josandi Leave a comment. Building Regulations For Stove And Flue Installations. Building Regulations For Stove Installations. If installing the stove into an existing fireplace/chimney and not using a new chimney liner then the installation is. How to Install a Wood Stove. A wood-burning stove is a great way to heat a room without increasing your energy bill or using petroleum. Visit the post for more. Water Filters For Sink Faucets; Water Filters For Kitchen Faucets; Water Filters For Home Faucets; Water Filters For Faucets Ratings.Clearances for an uncertified stove. The clearance for an uncertified radiant stove is 1. The clearances are large because they apply to all shapes, sizes and designs of stoves that have not been tested to determine the actual clearances. Clearances for uncertified stoves* Shielding consists of protection such as external jacketing or metal heat shield attached to the sides and rear of the appliance and spaced out at least 5. Clearances are measured from the outer surface of the appliance to the combustible material. Reducing Minimum Clearances Safely. We all want our wood stove installation to take up as little floor space as possible, so the reduction of minimum clearances using special shields is common.
The clearances for both certified and uncertified stoves can be reduced safely using the rules set out below. The common feature of the clearance reduction rules is the air space behind the shield material. This space sets up a convection flow of air as the stove is operating and prevents most of the stove's heat from reaching the wall behind. The percentage indicated in the table is the amount that the minimum clearance may be reduced with the particular shield system listed. Both wall and ceiling clearances may be reduced using shields. A variety of materials can be used for clearance- reducing shields, from simple sheet metal to more decorative shields using brick, stone slices or ceramic tiles. Shields must be permanently mounted to walls. Free- standing, folding panels should not be used as shields. Reducing Clearances With Shielding. Shield Construction Rules. Minimum space between shield and combustibles: 2. Minimum clearance along the bottom of shield: 2. Maximum clearance along the bottom of shield: 7. Minimum clearance along the top of shield at ceiling: 7. Shield extension beyond each side of appliance: 4. Shield extension above appliance: 5. Edge clearance for ceiling shields: 7. Adhesives used in shield construction must not ignite or lose adhesive qualities at temperatures likely to be encountered. Mounting hardware must allow full vertical ventilation. Mounting hardware must not be located closer than 2. Mounting hardware which extends from the shield surface into combustibles may be used only at the lateral extremities of the shield. Details of a wall shield By allowing air to flow between the shield and the combustible surface, a wall shielding assembly can be used to safely reduce minimum clearances. The shield is required to extend at least 5. Commercial shields are also available for the reduction of minimum clearances. These shields are subjected to a series of tests to determine how effectively they can reduce clearances. They are certified and carry a label which confirms that they have met the tests and provides information on clearance reduction details. Some of these commercial shields are designed so that they can be attached directly to combustible walls without the need for an air space. The first step in reducing clearances is to determine the minimum clearance, either from the appliance label or from the table of clearances for uncertified appliances. Then, calculate the permissible clearance reduction for the type of shield you plan to use from the table on clearance reduction. The channel spacers shown are the most effective type to use because they give good support to the shield and do not transmit heat through the mounting hardware to the combustible wall. Metal wall strapping, available from most building supply stores, is made of light steel channels that work well as shield spacers. Note that the bottom of the channel is notched to allow cool air to enter. The shield must extend 4. Protection for the Floor. Wood stoves that are certified as meeting the safety test standard will not overheat a combustible floor. During testing, the floor temperature is checked and must not exceed safe limits. Although the floor will not overheat due to stove operation, the floor must be protected from live embers that might fall from the stove during fire tending or ash removal. The floor pad must be made of a durable, noncombustible material, such as sheet metal, grouted ceramic tile, or mortared brick. Floor pads must normally extend not less than 4. Floor pads must not be installed on carpet unless the pad is structurally supported so that it does not move or distort. Floor pad size. The floor pad protects flooring from hot embers that might fall from the appliance during fuel loading or servicing. The pad should extend at least 2. The floor pad must be a continuous, non- combustible surface. The floor pad must not rest on the carpet unless it is strong enough to resist bending or cracking. The best floor pads are laid on the sub- floor so that their finished level is flush to the floor, so there is no edge to trip on. Uncertified stoves have not passed safety tests, so heat from the bottom may overheat floors. The rules for floor protection for uncertified appliances are complicated, with several different types depending on how high the legs support the stove from the floor. If you are installing an uncertified appliance, you should contact a qualified professional for details. A non- commercial service in support of responsible home heating with wood. A wood stove is the most popular, flexible and economical wood heating option. A stove can be located almost anywhere there is enough space and where its chimney can be properly routed. A perfect installation has the stove located centrally in the main floor living area of the house and the flue pipe running straight up into the chimney. This installation design will provide the best performance and need the least amount of maintenance. Wood stoves are for space heating. A wood stove is defined as a space heater and space heaters are intended to heat a space directly, unlike a central heating furnace, which supplies its heat to the house through a system of ducts. But because modern houses conserve energy more effectively than older houses and need less heat to stay warm, it is now possible to heat an average- size modern home with a single space heater, provided it is located in the main living area. If you want to heat most or all of your house with a wood stove, try to meet these two objectives: First, the heater should be located in the area where the family spends most of its time. And second, there should be ways for the heat to flow to other parts of the house. These conditions are not usually difficult to meet, but they do need to be planned. Put the stove in the area you spend your time. Choosing the right location for the stove may be the most important decision you must make. The heater should be located in the part of the house you want to be the warmest. This is usually the main floor area where kitchen, living and dining rooms are located and where families normally spend most of their time. By locating the space heater in this area, you will be warm and comfortable while you eat meals and relax. For heat upstairs, don't put the stove in the basement. A basement is not a good location for effective space heating. Although the heated air from the stove does tend to rise to higher levels of the house, this movement is normally too slow and limited to provide comfort on the upper floor. Usually, in an effort to keep the main floor living spaces comfortably warm, the basement is overheated. This wastes fuel and the frequent high firing can damage the stove. Unfinished basements are particularly bad locations because too much of the heat is absorbed by the walls and lost to the outside. Also, wood stoves operating in basements may over- fire or smolder without anyone noticing. The basement is only a good location for a space heater if your family spends much of its time in a basement family or recreation room. Stove heat output versus room size. If your house is divided up into small rooms you will probably not be able to heat it entirely with a single space heater. A stove too large for the room it is in will overheat the space quickly. Houses of open plan design with fewer separations between rooms can be heated entirely with a space heater, depending on their size and energy efficiency. In an open plan house, a larger appliance can be used without overheating the space. Correct stove sizing is important because a stove too large for the heat demand of the space will be operated with slow, smoldering fires much of the time to avoid overheating the room, and an undersized stove can be damaged by frequent over- firing to keep up with heat demand. A wood heat retailer is the best person to advise you on stove sizing for your home. Since experienced retailers know the performance of each stove, they can help you match a stove to your heating objectives and the location you have selected for it. When you visit a retail store to look over the available options, take along a floor plan of your house. This will save time and help the salesperson give you better advice. Stove structural design. Some aspects of the design of wood stoves are related more to looks and personal preference than to performance. For example, there is no functional difference between cast iron or plate steel construction, and painted or enameled finishes. These differences affect appearance and cost but not heating performance. Although the bottom and rear of all new stoves are shielded to prevent overheating of the floor and to permit close clearances to combustible walls, some stoves have shielded sides and top as well. The more shielded a stove is, the more of its heat is delivered to the room by warm air convection than by direct radiation from the hot stove surfaces. Some specialists say that fully shielded stoves are better for small spaces because the hot air they produce more readily travels to other areas and because they don't feel as hot when you sit near them. In practical terms, however, most modern stoves have both radiant and convective characteristics. Advanced combustion design. The internal design of wood stoves has changed entirely since 1. U. S. Environmental Protection Agency regulation established in the late 1. The EPA's mandatory smoke emission limit for wood stoves is 7. Stove manufacturers have improved their combustion technologies over the years, and now some newer stoves have certified emissions in the 1 to 4 g/h range. The EPA certified emission rate is a reliable number that can be compared from one model to the next, but a one or two gram per hour difference in smoke emissions does not mean much in day- to- day use. Why advanced stoves are worth the extra cost. On average, advanced, EPA certified stoves are about one- third more efficient than the old box, pot belly, or step stoves, and almost all of the currently available central wood heating furnaces and boilers. That’s one- third less cost if you buy firewood, or one- third less cutting, hauling and stacking if you cut your own. Although this higher efficiency is a by- product of mandatory emissions limits, it has made the EPA rules a winner for both the environment and stove users. The extra cost of advanced technology is about $2. Over just two seasons of wood burning the greater efficiency of the stove will more than compensate for the higher initial cost. Advanced stoves produce about 9. After a fire is ignited, you should see no visible smoke from the chimney, so neighbors won't complain and the foul smell, and thick smoke won't blanket your yard either. Fires ignite more easily and burn more completely in these new stoves. The result is a far more convenient and pleasurable wood burning experience. Virtually all the new stoves have a glass panel in their door and an air- wash system to keep it clear. This not only means being able to monitor the fire and adjust it periodically to get a perfect burn, but the fire itself is spectacular to watch. No fire in a conventional stove or fireplace can compare with the beauty of an efficient wood fire. Ninety percent less smoke means 9. This gives two important benefits. First, the chance of chimney fire is virtually eliminated, as long as the stove is operated correctly and reasonable maintenance is done. And second, the flue pipe and chimney will need cleaning much less frequently, which is another way the new technology stoves save time and money.
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