Type 1 would be common in any single story construction. Regular black stove pipe is run upwards from the stove and connects with the Insulated Chimney at a special support box located immediately below the ceiling level. Insulated chimney is then stacked up until the required height is obtained. All chimneys must extend a minimum of 3 feet above the roof surface and 2 feet higher than any part of the building within 10 feet.
If desired, this chimney could be boxed in with wood framing and stuccoed or sided to match the home. Type 3 is similar to type 1 in that it is a single story installation, but different components are needed due to the slanted ceiling. In this case, the pipe is supported by a bracket at the roof level, and Insulated Chimney Pipe hangs down partially into the room to connect to the interior black stovepipe.
The details as to the building of masonry chimneys are beyond the scope of this document, however there are a few safety and performance issue to keep in mind.
The sad truth is that some masons spent so many years building low-temperature chimneys for oil burners, gas burners and fireplaces that the art of proper chimney construction has become almost lost.
These deficiencies can be addressed during new construction by a competent mason, and a properly designed and built masonry chimney is a work of art that can last for generations.
An existing but deficient masonry chimney can often be brought up to spec by installing a UL approved stainless steel liner system.
This provides an extra margin of safety as well as improves draft and simplifies cleaning. Not so fast — some thought processes are required here. Lets start with the fireplace. If they were real smart, they fit some old fiberglass insulation around it so as to stop too much room air from escaping up the chimney made the stove draft stronger too. Chimney professionals soon saw that there were a lot of problems with this setup.
The stoves drafted poorly, created lots of creosote and the more-than-occasional chimney fires! As a result of these problems, the Hearth Industry and the National Fire Protection Association put together a set of more modern guidelines.
First, determine if you have a masonry fireplace and chimney. If you have a metal zero clearance fireplace and metal chimney, your options are very limited. Check with your local Hearth Retailer — and confirm in the installation manual or manufacturers literature.
Houses with unused chimneys tend to be older homes, as these structures were often built with multiple chimneys for heating, cooking, etc. Often, these older chimneys are not safe to use without some upgrading. They can be lined with approved stainless steel pipe or restored with special masonry processes ask your chimney sweep. Pay special attention to the wall pass-through, which is the area where your stove pipe will connect to your chimney. Any wood or combustible material in this are must be cut back to comply with building codes.
Special insulated sleeves are available to accomplish this transition. As previously mentioned, it is not to be used for passing through Walls, Floors or Ceilings. Single wall stovepipe is designed to connect a wood stove to a nearby chimney. It is available in different thicknesses 24 ga. Use a solid, insulated, listed factory-built chimney over a gauge chimney connector, with 1 inch of air space, plus 2 inches from outer wall of chimney section and combustibles.
Avoid sharp turns, which create excessive resistance to the flow of flue gases, and support and fasten securely with sheet-metal screws, rivets, or other approved means. The flue must be no larger than three times the cross-sectional area of the appliance flue outlet. The system must be designed and installed so that it can be inspected and cleaned.
A solid-fuel burning appliance may NOT vent into or through a factory-built fireplace unless it has been specifically listed for that purpose. Using UL-listed wood-burning equipment and chimney materials and installing the unit according to manufacturer's instructions. Proper sizing of chimney and components. Building a small hot fire for a short period rather than an "idle" fire over a long period, when temperatures are moderate. Keeping a hot fire; many manufacturers recommend opening the damper and allowing the stove to burn hot for at least 15 minutes to burn away small amounts of creosote.
Using only well-seasoned hardwoods. Inspecting your system frequently and learning to operate it most efficiently. Clean your chimney accordingly. Publication Date: October Ronald C. Commercial companies or products are mentioned in this publication solely for the purpose of providing specific information. Mention of a company or product does not constitute a guarantee or warranty of products by the Agricultural Experiment Station or Delaware Cooperative Extension or an endorsement over products of other companies not mentioned.
Organization s : University of Delaware Cooperative Extension. More Like This. The standard clearance for appliances installed in rooms which are large in comparison to the size of the appliance is 36 inches from the top, sizes, back or front of the appliance. Otherwise, install according to the manufacturer's instructions. Advanced combustion wood stoves use advanced technology for energy efficiency and lower particulate emissions relative to conventional wood stoves.
Advanced combustion stoves fall into two sub-types:. Catalytic stoves are equipped with a ceramic combustor coated with palladium located in the appliance downstream of the firebox. The catalyst reduces the ignition temperature of the smoke so it burns more completely, cutting smoke emissions at normal stove operating temperatures; and,.
Non-catalytic advanced combustion design includes an insulated firebox, an internal baffle that acts as a reflective surface and separates the firebox from the secondary combustion chamber, and a system to pre-heat and distribute a secondary air supply above the fuel bed. A wood stove can have surface temperatures which reach over degrees F.
The interior stove temperatures are over 1, degrees F, and if a chimney fire occurs, temperatures over 2, degrees F are possible. Proper installation is imperative to operate a space heater in your home. Once you have chosen a location for your stove, prepare the area properly to ensure there is adequate clearance from any combustible surfaces.
Combustible surfaces include floors, furniture, and walls of plaster, drywall or paneling. All new wood stoves are tested by a Listed Laboratory to determine the required distance from combustibles in order to safely operate your appliance. Underwriters Laboratories of Canada tests wood stove by setting up heat sensors in accordance with the manufactures installation instructions and then operating appliance to ensure a safe distance from combustible material is maintained. Although Uncertified Wood Stoves can be installed by using requirements of CSA B guidelines, most insurance companies will not insure a home with an uncertified wood stove.
Distances to combustibles are also Listed. A is typically your Side Clearance, B is typically your Rear Clearance, C is typically clearance for corner installation and D is measurement from ceiling to top of stove.
Read more about Reducing Clearances to Combustibles. Many people think because they have a brick wall where they want to install their stove that will reduce distance required to combustibles, this would only apply if the whole wall was constructed of masonry, if there is drywall behind the brick wall it has no bearing on reducing distances to combustible products.
Ember protection is required to extend a minimum of 18 inches in front the opening door, and 8 inches beyond the appliance on both sides. Construction of the ember pad could be ceramic tile, that is grouted, or sheet metal of a minimum thickness of 0. This pre-finished units come in multiple sizes and are very popular with people who have wood stoves and fireplaces. In Accordance with CSA B An appliance with less than 75 mm 3 inches of clearance between the firebox bottom and the ember pad shall be supported off the ember pad by two courses of 90 mm 3.
Most modern wood stoves have either legs or wood stove compartment which provides the required clearance so that floor protection is not required. Older wood stoves which require Floor Protection are likely uncertified and most Insurance Companies will not insure a home with an uncertified wood stove.
If buying a used wood stove, ensure there is a Certification Label attached to space heater and ensure the required clearances to combustibles will be able to be met in your preferred locations. Over the years I have seen older stoves, while being a Certified Wood Stove, still have a side or rear clearance of 36 inches or more.
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