If the chain or handle isn t firmly secured in the bracket the damper is open.
													
																	Fireplace damper chain open or closed. 
								
	
		
	
																	They remain open until you pull a chain or handle usually mounted on the side of the firebox to close them and secure the mechanism to keep the damper closed. 
																	It s why so many of us prioritize purchasing homes with fireplaces in them. 
																	One of the most pervasive causes of a stuck damper is rust often caused when rainwater enters the chimney through a faulty or nonexistent chimney cap. 
																	After you ve opened the damper you should feel air coming down the chimney. 
															
													
								
	
		
	
																	To verify that take a mirror and hold it in the fireplace and look and see if you can see the sky above if you can then it is jammed in. 
																	Top mount dampers use a spring loaded design. 
																	Chimney top and throat. 
																	They usually feature mesh guards to keep critters out of your flue and a leak proof gasket to keep moisture at bay. 
															
													
								
	
		
	
																	An open damper allows smoke to exit the chimney rather than backing up into the house. 
																	The damper is a steel or cast iron door that opens and closes the throat of the firebox into the flue. 
																	If it s hanging freely the damper is closed. 
																	If you don t feel any air coming down the chimney or if you ve opened the damper but your fireplace is still smoking you should contact a chimney specialist. 
															
													
								
	
		
	
																	You should feel the chain spring up as the damper opens. 
																	Chimney top dampers sit at the top of the chimney with a chain and lever to open and close it. 
																	Throat dampers sit lower in the flue just above the firebox. 
																	If the chain is tightly attached to a hook the damper is closed. 
															
													
								
	
		
	
																	For chimney cap dampers look for a chain inside your fireplace. 
																	However before you use your fireplace it s important that you understand how to operate it properly. 
																	If it has then the damper is jammed in the open position. 
																	Dampers are made to close tightly when you aren t using your fireplace in order to prevent air exchange between the inside and outside of your home. 
															
													
								
	
		
	
																	Fireplace dampers come in two main types. 
																	Often a damper becomes difficult to operate or sticks in one position. 
																	Fireplaces are constructed fairly simply. 
																	A fireplace damper is a device that can be manually opened or closed with the purpose of allowing gases and other byproducts from a fireplace to be safely vented from a building when open but to also prevent air from escaping the building when a fireplace isn t being used. 
															
													
								
	
		
	
																	Fireplace dampers are typically made of metal or ceramic so they can tolerate the heat of the fire without suffering damage. 
																	It also creates a draft of the air necessary for this to happen. 
																	The damper can be opened and closed through a few different mechanisms including a latch a pull chain or a handle. 
																	One key aspect of this is understanding when your dampers are open and when they re closed.