A vent damper is an automatic devise that shuts off the flue pipe when the burner is not running. A vent damper has no effect on the running efficiency of the appliance. It only saves off-cycle losses of heated air. Therefore, if the appliance is in an unheated space, there is no benefit to a vent damper.
What is the purpose of a flue vent damper on a boiler?
What is the purpose of a vent damper? The idea is to retain the heat in the block during the boiler off cycle and to prevent the chimney from drafting air through the boiler and up the chimney. This raises the AFUE a point or two, and ideally saves the end user in fuel usage and operating cost.Feb 6, 2015
What is the function of a damper in 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.Feb 13, 2013
Where is an automatic vent damper installed?
flue pipe
How do you replace a vent damper?
https://www.youtube.com/watch?v=ClLVXX_QLsU
How do you reset a blocked vent switch?
https://www.youtube.com/watch?v=_4KZ7l1UvHA
How do I know if my damper motor is bad?
Check the registers to see if the airflow has ceased. Adjust the damper to the open position and once again check the registers to see if the airflow has resumed. If you feel airflow when the damper is closed, or no airflow when the damper is open, the damper is most likely bad.
How does an automatic damper work?
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 is a vent damper used for?
A vent damper is an automatic devise that shuts off the flue pipe when the burner is not running. A vent damper has no effect on the running efficiency of the appliance. It only saves off-cycle losses of heated air.