If it’s hanging freely, the damper is closed. Step 2. A flue damper is located inside of the flue. You should be able to dampen the flue as you would with a wood fire to slow burn rate. It is easy enough to figure out. With an open flue system, the fire appliance is ‘open’ to the air supply of your room. Chimney cap or top-sealing dampers are installed at the top of the chimney. When it's open, you'll feel a rush of cool air in the fireplace and see an open vent. Prime the flue. When you have an active flame going, you want to leave the damper open so the smoke can escape through the flue. In this case, the chain is in the lower position when the flue is closed and in the upper position when the flue is open. Building codes typically require a minimum flue size, expressed in terms of cross-sectional area, in relation to the area of the fire-place opening. Adjusting the damper allows you to burn a fire efficiently and safely. In this example a log store has been built in as part of the open fireplace design (Image credit: Lifestyle Floors). Sealing the Flue Opening. How to Be Sure the Damper is Open. To open you just pull down hard and release. Your fireplace will be smoky because more smoke collects in the firebox than can be drafted up the chimney. In general, chimney cap dampers are closed if the chain is hooked to the wall surround of your fireplace. Push the lever up slightly to disengage it from its support tab and then pull it away from the tab horizontally as the damper lowers into a closed position. The damper can be opened and closed through a few different mechanisms, including a latch, a pull chain, or a handle. if you are talking a stove flue [free standing] the handle on the flue will indicate open or closed. I would light some incense and determine if [pulled -chain position] the smoke escapes or is "drawn " up the chimney. Another tip on effective use of a fireplace damper involves the end stages of a fire. If you try to light a fire during this air sink, you’re going to end up with smoke coming into the house instead of up the chimney. Keep the damper open until all open flames are gone. Using a Fireplace Draft Stopper. Pull back the screen. A fireplace flue damper enables you to control how much air flows up your home's chimney when the fireplace is in use. However, it can be a safety risk and an energy waster if not used properly. If your fireplace has pull chains, pull the longer chain to disengage the damper and then pull the shorter chain to close the flue. These dampers are open by lifting the handle up, pushing the damper upwards, and pinning the damper in the upward position by setting one of the notches on the handle onto the mounted ratchet on the frame of the fireplace. A chimney can act as a wind tunnel even when the damper is closed, sucking cold air down into your home through the fireplace opening.. A fireplace draft stopper is an efficient way to prevent this from happening. If you start a fire before opening the throat damper, smoke will flow out of the fireplace instead of going up the chimney. Chimney Flue Damper - How to Install Chimney Flue Damper Step-By-Step: Installing a lock top chimney damper can be a great way to prevent any energy leakage from your home caused by a chimney. Bring it down slowly and monitor for smoke intrusion. The "chain-pull" usually opens a counter-balanced damper and the chain needs to be "latched" on to some type of cleat that holds the chain. Sealing the flue is essential in preventing gasses from escaping back into your home. Do keep a carbon monoxide detector in service as a safety precaution. Placing a bit of fire underneath the flue and the damper when they’re open will create an air current that feeds smoke up into the chimney when the fire is fully going. To start the fire, you need kindling -- smaller pieces of wood that will take flame easily. if vertical flue is open. Poker Damper. When you open the damper, the cold air in the flue will sink and come into your warm house. A damper plate located at the top of a chimney (within a top-mounted damper) is usually square in shape and spring loaded to open or close via a pulley chain, with the chain handle to control the damper located within the fireplace. If you’re not sure which is the open or closed position on your damper hardware, try one or more of the following steps: Chimneys can be a major factor in losing heat in the winter and air conditioning in the summer. How to Close a Chimney Flue Step 1 - Open the Fireplace Doors. If you currently have a throa… Light a match or candle and hold it at the fire place. How do you know when the fireplace damper is open? However, because of the potential risks from fire and toxic fumes, even if you’re only installing a stove in an existing fireplace or lining a flue, the work will need to comply with Building Regulations (Part J deals with combustion appliances). A chimney flue is essential in conveying smoke and harmful gases from your fireplace to the outdoors. Before lighting up that firewood, ensure the fireplace flue is open or else the smoke and gases will fill up your room. BUILDING CODES SET MINIMUM FLUE SIZE Once the size of the fireplace opening is set, you can determine the appropriate flue size. Open fires with larger fireplace openings (usually freestanding grates) will need larger flue sizes calculated alongside the height of the chimney and required ventilation. Aside from the fireplace flue, this handle may be located on the fireplace opening as well. 49 Treasure Gurus New Solid Brass Open/Closed Fireplace Damper Sign … Among the other components of a gas fireplace (or gas logs), the flue is a chimney, pipe, or ductwork that allows gasses such as carbon monoxide to escape without losing fireplace heat. Others have a lever designed to move with a knob or chain connected to the damper. Use a flashlight to observe both the open and closed positions to double check that the damper is open before proceeding. These dampers also provide an energy-tight seal and make your chimney much more efficient in … 5.Increase the height of the fireplace grate or of the fire basket. You can test the effect of this by raising the fireplace grate or the fire basket with stones. They are opened with a chain located inside the fireplace. The Gas Fireplace Flue. The damper in your fireplace helps you control the flow of air when your fireplace is being used or not. Traditional fireplace dampers leak, so sealing your fireplace flue is smart when you aren’t using it like during the off-season. 3. Open the doors completely to your fireplace. MULTIOPENING FIREPLACES Some fireplaces have more than one open face. If your fireplace has pull chains, pull the longer chain to disengage the damper and then pull the shorter chain to close the flue. Corner or L-shaped units have two adjacent faces. Since you will be down at the bottom of your fireplace, this is a good time to pull out the logs and give the space a little clean. This kind damper, Poker dampers, we commonly refer to as a banana handles.This is because of the banana shape arch in the handle. Visually inspect the flue damper during the daytime to see if it is in the open or closed position. If your chimney is built on the outside of your house, the chimney flue is probably cold. A handle beside or just inside the fireplace operates the damper. Open flue with no cap on chimney I have an open 'feature' fireplace that has an open flue, that if you look up, you can see all the way to the sky as there is no chimney pot or cap. Make sure the damper is open before you light the kindling with newspaper. If the opening of your fireplace is more than ten times the circumference of your flue, the dynamics are wrong for creating a healthy draft. How do you close a fireplace flue? It doesn't take much to maintain a chimney draft--maybe 25% open. A fireplace flue is designed to lead smoke outdoors when your fireplace is being used. The most common case is 1⁄ 10 of the fireplace opening area, but with a minimum size specified. Stack a few split logs on your grate and place kindling around and below them. Try it both chain up and down. By increasing the height of the fire grate, the fire is closer to the chimney channel, as a result of which, the chimney flue becomes warmer and the draft will improve immediately. Before lighting a fire , you can tell if the damper is open by placing your hand into the fireplace . They are mounted on top of the chimney and open and close via a cable that threads down the chimney flue and to a handle. if handle is horizontal flue is closed. Always confirm the damper is open before lighting a fire. Chimney liners or flues, are designed to carry the products of combustion from fires safely out of the home. Open wood burning and coal fires require a class 1 flue liner with a minimum diameter of 200mm. Use a flashlight to look up into the chimney opening to see what can be verified. fireplace opening and flue size, in-creasing the chimney height in-creases the amount of draft. A Fireplace Opening Too Large for the Flue. Also apeice of tissue will suck up and out the chimney when it is open… The flue is then sealed with a band that should be included in your kit. A fireplace is a huge source of drafts from the cold outdoors. Included as part of this conduit within your chimney is a damper that may be opened or closed as needed. Move the control lever to the open position. The damper is typically in the shape of your internal chimney pipe and resembles a metal flap. Related: Choosing the Right Fire For Your Chimney & Flue Type. Other designs include the look-through type with two opposite faces and three-face types. But when you aren’t using your fireplace, leaving the damper open … Step 2 - Remove Logs and Clean Fireplace. For chimney cap dampers, look for a chain inside your fireplace. An open flue system is how a conventional gas fire or solid fuel burning fire works with a traditional class 1 or class 2 chimney. Don't use too much paper, as flaming scraps can be carried up the flue and onto your roof. Look inside the chimney toward the roof to see if any daylight is visible. Upper Deck Solid Brass Metal Open/Closed Fireplace Damper Sign Hanging Flue Pull Hook 4.4 out of 5 stars 30 $16.49 $ 16 . 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