Truly air-sealed electrically-actuated duct dampers exist. What you are asking for is also known as a electrically actuated butterfly valve for air. Show activity on this post. Yes, they sell round dampers with weatherstripping foam on either side of the louver to seal the gap you’re talking about.

What is an automatic air damper?

Automatic Dampers are used to constantly regulate airflow and are operated by electric or pneumatic (Air Pressure) motors – each controlled by a thermostat or building automation system. Dampers may also be used to help control the rate of combustion in fuel burning equipment.

What are the three types of dampers?

In this guide, we will walk you through the main types of industrial dampers, and their applications, to help you with your decision making process.

  • Multi-Blade Control Dampers. …
  • Single Blade Dampers. …
  • Backdraft and Pressure-Relief Dampers. …
  • Face and Bypass Dampers. …
  • Inlet Vane Dampers. …
  • Isolation Dampers.

How many types of dampers are there?

Dampers are one of the important elements in HVAC. They control airflow as well as prevent the spread of fire and smoke.

How do you tell if a damper is open or closed HVAC?

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.

How do electronic dampers work?

Electronic damper control

Small holes within the piston allow the oil to flow through. If a car travels through a bump, the piston compresses, with the flow of oil allowing kinetic energy from the bump to dissipate as thermal energy.

How does electronic damper control work HVAC?

How does a motorized fire damper work? Motorized fire dampers work by automatically shutting off the air supply to an affected part of the HVAC network which prevents the spread of smoke and fire through the duct system. These dampers are typically activated in one or more ways.

What is air duct damper?

An HVAC damper (also called a duct damper) is a movable plate, located in the ductwork, that regulates airflow and redirects it to specific areas of the home. Dampers are typically used in zoning or “zone control” systems.

Do all HVAC systems have dampers?

Every house is different. Some homes have no dampers at all. A supply duct may travel to the right or left off of your furnace depending on where your home is situated. A damper will generally be inserted in the supply duct that leads to your upper level.

Is dynamic damper control worth it?

I have it on my F56 JCW and for me it was worth it. If you don’t track your mini and you drive on rough roads it provides a much smoother ride, however, it does limit your hard cornering somewhat and you can’t put coil overs on your mini if you have it.

Are adaptive dampers worth it?

Are adaptive dampers worth it? While adaptive dampers may demand an additional premium over regular suspension, the added versatility and practicality of the system makes it a desirable choice.

How are motorized dampers controlled?

The dampers are wired to a main control panel to which each zone’s thermostat is also wired. The main control panel can then maintain each zone’s set temperature by controlling the opening and closing of each damper.

How long do motorized dampers last?

How Long Do HVAC Dampers Last? The quality of the equipment, how frequently you run your HVAC unit, and if you follow regular maintenance schedules can all affect the lifespan of your HVAC components. Dampers can last around 20 years with proper maintenance.

How do you install an electronic damper?

Quote from Youtube video: For an automatic round damper or ard insert the crimped end of the damper into the round ductwork. For a zoning damper or ZD. Slide the damper into the rectangular rigid duct and secure with screws.

How do you install an electric damper?

Quote from the video:
Quote from Youtube video: So first off you want to find a drill bit that matches the size of bolt of the damper here. And you're going to drill a hole into this sheet metal. And you're gonna loosen that bolt.

How much does it cost to install dampers in ductwork?

If your damper isn’t working, you’ll need to replace the part. Expect to pay an average of $350 to replace a motorized HVAC damper, with a typical range of $250 to $450. However, you could pay as little as $100 or as much as $600.


Minimum Cost National Average Cost Maximum Cost
$100 $350 $600

Are dampers bad for HVAC?

If you’re thinking, “Hey, closing off my air supply dampers might also increase static pressure,” you’d be right! A fully or partially closed damper pushes back against the air being forced through the system by the blower fan. It increases air resistance inside your ductwork.