Heartland Dryer Vent Closure

Keep your laundry area warm and bugs and rodents out.

Heartland Dryer Vent Closure (in box)Most houses will have a dryer vent flapper installed to keep cold air (not to mention bugs and rodents) out of your dryer and home. Flappers are effective at doing this and are inexpensive (about $5). If the flapper is your only option, be sure to check the mechanism occasionally since lint can cause it to get stuck—usually in an open position. That's like leaving a window open year-round.

For about $20-25 you can install a dryer vent cover that provides a more insulated and reliable mechanism. We went with the Heartland Dryer Vent Closure System. Sounds impressive, huh? There are also other similar models available but the Heartland had very good reviews.

Inside View of Dryer Vent Closure with Cap   Inside View of Dryer Vent Closure with Cap Sideways
View from top with the cup in place.   View from top with cup on its side.

When air blows out from the dryer, it raises the cup to allow air to flow out the bottom. The top of the dryer vent closure (not shown in here) holds the cup in. Once the dryer stops, the cup lowers and seals the dryer opening.

Installing the Heartland Dryer Vent Closure

Installation was very easy, with one notable exception. I needed to put screws in concrete at my house. This was tough and time consuming. I didn't have any masonry screws and the screws provided weren't up to the task, so installation took longer than I anticipated. If I had the right tools (a masonry drill bit and masonry screws) it likely would have been easier.

The Heartland Dryer Vent Closure System at Work

Essentially, when the dryer starts blowing air, the small cup in the center of the dryer vent closure is pushed up letting the air out. When the dryer stops the cup falls back down and seals the airway.

Without the top on, the air from the dryer blows the cup right out of the vent closure. With the top on this doesn't happen. But if you don't have enough pressure for some reason you may need to order an accessory with a spring to make sure the cup rises enough. It's a good idea to test and make sure everything is working after installation.

Some Things to Consider

  • If you need to attach the dryer vent closure to a concrete wall be prepared with masonry screws and possibly a masonry drill bit.
  • If there's weak airflow you may need to get the spring accessory. My guess is this would be necessary for bathroom type venting, not dryers. You may also need to make sure your dryer hose is attached properly.
  • Have some rope caulk available to form a tight seal around the edges.

Overall, I'm very happy with the Heartland 21000 Vent Closure System. In the dryer, it is only 1.4 degrees cooler than the laundry room (it was 9.0 degrees cooler before). No bugs or rodents can get in, and it looks good on the house.

Try our Home Energy Checklist for more ideas on home energy savings.