What is an automatic vent damper?
An automatic vent damper not only restricts the flow of heated air up the chimney, but can also reduce the amount of cold outside air leaking in to replace the escaping warm air. It is placed in the flue pipe between the heating unit and the chimney to block the passage of heat after the unit has been shut down.
What does the damper do on a boiler?
One of the most misunderstood components inside a boiler room is the barometric damper, which is used to control the draft inside a boiler.
Should my boiler damper be open or closed?
If you are looking at a duct that is coming off the furnace and going straight up like it is going to the upstairs, and the wing is in the same direction as the duct, it is open. If the wing is in the opposite or vertical position to the ductwork, then the damper is closed.
What is a damper water heater?
Water heater flue dampers aim to reduce standby losses in low-efficiency water heaters. The outside of a water heater tank is insulated, but the flue is a thin-walled metal tube up the middle of the tank, opening into ambient air.
Do I need a damper on my boiler?
If your home doesn’t have a furnace for heating, it may well have a boiler. Regardless of what type of boiler you have, you could benefit from having a flue damper installed. If your boiler functions by burning fuel, then you need to be sure the fumes from the burned fuel can escape from the home.
Where is a damper in a water heater?
The damper gets placed between the chimney and heating unit in order to keep heat from escaping after the water heater has shut off. A vent damper is there to improve the overall efficiency of the water heater (and furnace if you have one for that).
Why do you need a power vent water heater?
That means the risk for carbon monoxide problems caused by your water heater is significantly lower with a power vent water heater in place. Venting systems are necessary to prevent flue gases from accumulating in your water heater. These gases largely consist of water vapor and carbon dioxide.
What is the use of a damper in a boiler?
The barometric damper is used to control the draft inside a boiler. It is installed on boilers that use a Category I vent. To understand how the barometric damper operates, we need to understand what draft is.
What do the air vents on a boiler do?
Automatic air vents (AAV’s) are handy devices that can be fitted to automatically expel air from hot water systems. Most boilers incorporate some form of AAV, often concealed below the external casing, and therefore out of reach of any DIY or unregistered installer.
What is a barometric damper?
A barometric damper is found in chimneys, stove pipes and furnaces. It is used to control the flow of air. Barometric dampers are also referred to as draft dampers. A barometric damper is found in chimneys, stove pipes and furnaces. It is used to control the flow of air. Barometric dampers are also referred to as draft dampers.
What is a combustion air damper?
Automatic Combustion Air Dampers . Most building codes require that outside air be provided for the ventilation of boiler and furnace rooms. Fixed or manually-operated combustion air dampers can allow cold winter air into the room even when burners are not operating. By installing automatic combustion air dampers, which only open when the burners are operating, exposure of the boiler and piping to cold outside air is reduced.
