What is a furnace vent damper?
What is a furnace vent damper?
Automatic Vent Damper- A device installed in a furnace or boiler’s venting system to restrict the loss of heat after the furnace or boiler has been shut off. Vent dampers are usually used in conjunction with an intermittent ignition device (IID), but can be used with standing pilot flames as well.
Should furnace damper be open or closed?
HVAC Damper Open Or Closed In Summer/Winter In most homes, dampers going to the upstairs are open in the summer and closed in the winter. By closing the dampers to the upstairs in the winter, it allows for the heat to rise naturally after first being introduced into the lower levels of the home.
Does a gas furnace need a damper?
Inside the stack resides a damper that regulates the pressure between the air from the furnace and the outside air. This damper helps create the draft that pulls the exhaust gases up the stack for venting. The damper also prevents the exhaust from coming back into the furnace and your home.
Is there a damper on my furnace?
The most standard dampers are found a few feet from the base of the HVAC unit. As you enter your crawl space or air handler unit in a closet, you notice the main connections to the trunk of the HVAC unit. Most homes with a second level will have dampers in their HVAC system.
Is a vent damper necessary?
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 sets the damper position?
The further the damper is open, the more hot or cold air flows into the room depending on whether you are heating or cooling the room. As the temperature fluctuates, the damper position will dynamically adjust to automatically regulate the temperature.
How does a vent damper work?
Where is an automatic vent damper installed?
The damper is installed between the vent or chimney and as close to the draft hood as practical. When properly installed the damper opens before the burner fires and closes after the burner shuts off.