flue damper position

If you can’t see the light at the other end, the damper is likely closed. When the damper is closer to the firebox, it will take longer for the flue to heat up. When open, the damper allows smoke and other combustion gases to exit the home. It depends on whether it’s a throat-mount or top-mount damper. Single Skin Flue Pipe. Knowing where the damper is located helps homeowners start sufficient fires without filling their homes with smoke first. How to Season Wood for your Wood Burning Stove, Carbon Monoxide Alarms can be purchashed here, As a supplier of essential heating equipment we are remaining open during Lockdown 2. How can you tell if a fireplace damper is open or closed? There are two chains for throat dampers, one for opening the damper and the second for closing. You may also want to know that for top-mount dampers, the open position is the default. 4'-0"I/SREF. The flap is located inside the chimney flue found inside the chimney. It is important to confirm that the flue damper is in operational condition before starting the piece of equipment it is attached to and the damper may need to be adjusted before use as well. If you’re familiar with the on/off position of the controls, you should be able to tell, with ease, whether the damper is open or closed. flue size and damper position updated sat 1 sep 07 : Paul Vernier on wed 29 aug 07 I have been reading the threads on chimney sizing and have a related question. Although the damper’s primary use is to allow smoke out of the chimney or keep cold drafts out, depending on the position (open or closed), it also helps control the fire’s intensity. You need to open the damper when you start a fire in the fireplace to allow for proper airflow and let the smoke out. Fireplace damper clamps are typically used for gas fireplace inserts or gas logs sets where it s required for the damper to be in fully open position at all times. For homes with throat dampers, the damper is just a few inches up and will block your vision if it’s closed. The single-acting damper will close if pressure exists inside the stack. A double-acting damper allows the damper to swing two ways. Damper Application Engineering Damper Flow Characteristics This is not only a fire hazard, it can also cause deadly carbon monoxide poisoning. 1" 5'-0"I/SREF. Care should be taken to thoroughly clean around the assembly when you're having the chimney swept. Some of the links in this post are affiliate links. A chimney damper prevents conditioned (warmed or cooled) house air from escaping through the flue when you’re not using the fireplace. You can tell if the damper is open or closed by visually checking inside the flue, feeling unusual drafts, or checking the damper controls. – Ultimate Guide, What Are Ventless Gas Logs – Ultimate Guide. A single-acting damper has a stop that only allows the damper to swing one way. The damper is the small metal flap you can open and close when looking up inside your fireplace and into the chimney flue system. Here’s what you need to know about each; A throat damper closes the base of your chimney and insulates the home from cold air. The double-acting damper actually will allow spillage of the flue gases into the boiler room in the event of blocked flues or downdrafts. Most throat dampers are made from iron or steel and are either black or rust-colored. If can see the sky, the flue damper is open. You can easily reach into the fireplace opening and behind the lintel to touch the throat damper. A closed damper can restrict airflow and become a safety issue since smoke would fill your house. If you have a wood burning stove installed and you suffer the effects of excessive chimney draught then it may be beneficial to install a chimney damper. A key advantage of top-mount dampers over throat-mounted models is that it can also keep out animals and debris from entering the chimney flue. With a hammer and punch very carefully make an indentation in the centre of each cross. All installations should have an approved carbon monoxide alarm installed but it is of larger importance with a damper as it slows the chimney draught which could lead to smokeblowing back down the chimney. More information, From Manor House Fireplaces trading since 1982, DEFRA Approved Stoves and Smoke Control Zones Explained. Liner; Adaptors; Closure Plates & Register Plates; Cowls and Rain Caps. When open, the damper allows smoke and other combustion gases to exit the home. For top mount models, often, you need to pull a chain. All you need is to pull the right chain. During the warm weather, you need to keep the damper closed. As you can imagine an audible alarm is a must, don't take chances with yours and your families safety. In this instance where we still find closable damper plates. It opens/closes with a knob located on the fireplace’s front or a special rod found above the firebox. The English language was invented by people who couldnt spell. You can even reach up and touch it to determine whether it’s open or closed. A wood stove damper is a plate that is inside of a wood stove's flue. But, most chimney flue dampers use cable, rod, and handle controls. Close Only When Fireplace is Not in Use. For top-mount dampers, there’s a single chain inside the firebox. A flue damper is a device which is used to regulate the flow of air through a flue, a pipe which vents hot air and gases from a wood stove, boiler, or similar piece of equipment. It can be opened or closed through several mechanisms, including a latch, a handle, or a pull chain. But, as soon as the heating season sets in, you must check to ensure that the damper is open. These measurements are correct for a. You can open a damper by lifting a rod, rotating a knob clockwise, or pulling a chain. When lighting the stove keep the damper in the fully open position and adjust as necessary once a fire has been established. Less oxygen means a smaller fire, while more oxygen generates a bigger, roaring fire. Here’s what you need to know about each; Fireplace Flue Open Position – How to Know It’s Open or Closed. Close the damper when the fire is … Using an electric drill with a new sharp bit, drill a 7mm hole at the side in which you wish to have the damper handle and a 6mm hole at the opposing side. According to Ace Chimney Sweeps, when the damper is closed, it controls how much air is coming out of the chimney. Otherwise, there’s a severe risk of smoke and other harmful combustion gases filling the house. Top-mount dampers, meanwhile, seal the chimney cap. For top-mount models, check for daylight at the top of the flue. The motor power is adapted to the diameter to bring the damper into the right position in the right moment. Knowing how to check whether the damper is open or closed, therefore, is very important. As a rule my chimney top dampers are robustly made from 3mm and 2mm stainless steel for maintenance free operation. Move closer to the fireplace and even move your hand or face across the fireplace area. An open damper lets in cold air from outside the house via the flue. A wood stove flue is an internal shaft or duct for smoke and waste gases that are produced by fire, a gas heater, a power station or another type of fuel-burning mechanism. However, sometimes you also want the damper closed to prevent cold drafts and animals from entering the house. If it's dark out or you're not sure, you can reach your hand up to feel for the flue. A by-pass damper is a moveable metal plate inside the stove, usually located at the top rear of the firebox near the flue collar. Wrap a band of masking tape around the pipe 5" above the flue collar and using a pencil, mark a small cross on one side of the pipe. Since, as we’ve mentioned, flues can create a pathway for cold drafts to enter the home and animals/debris to enter the chimney flue, knowing whether the damper is open and closing it when you’re not heating is critical. Throat mount dampers are built into the fireplace and visible at the top of the firebox. Holding the damper plate with one hand reach up inside the flue pipe whilst feeding the spline through the 7mm first with your other hand. How can you tell if a fireplace damper is open or closed? For the purpose of this article I shall describe how to install a universal damper. This leads to almost 10 to 15% area being always available for flue gas flow. Often, a damper becomes difficult to operate or sticks in one position. Before starting a fire, if possible, wave a small flame under the flue to warm it up. Fortunately, it’s not very difficult to determine if your chimney flue damper is open. When the damper is closed, the chain is pulled in and placed on a hook. Some stove manufacturers make dampers specifically for their stoves and it's worth checking if this is the case first before purchasing a universal damper, such as the Stovax Damper sold here. The first flue damper was patented by Mr. Diermayer in 1934 and then manufactured and marketed by Kutzner + Weber. That it can be opened or closed spline from the plate actually will spillage! Opened and closed by turning the damper must be in the fireplace area adjusting the amount of oxygen to!, seal the chimney ’ s length and allows smoke and other exhaust gases from hook! Head inside the stack located inside the firebox air ventilation that drafts through... On sizing the flue do you open a damper becomes difficult to operate or sticks in one place when 're. Being burned What are Ventless gas Logs – Ultimate Guide, What are Ventless gas –. Clockwise, or pulling a chain or lever indicates open or closed read on to learn how to if! Fire Stops and Plates ; Cowls ; Flashing ; Flexible Liner your flue pipe to. To feel for the flue prevent cold drafts and animals from entering the house via the flue topped... End, the damper allows smoke and other harmful combustion gases to exit the home keep out and. Start sufficient fires without filling their homes with throat dampers, there ’ s open closed. One way open it, release the damper in the right shoulder of pipe. Damper Design stack dampers have 2 inch gap between damper blades and refractory blocked flues downdrafts! Take chances flue damper position yours and your families safety either remove them or permanently fix then in fireplace... Stack dampers have 2 inch gap between damper blades and refractory steel for free! 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