#41: I Have a Damper with No Handle or Opener. How Do I Plug the Flue?

Damper with no Handle

41-1: Closed Damper with No Handle or Opener

Damper with No handle

41-2: Open Damper with No Handle or Opener

41-3: Broken Rusted-Out Damper Door

where to measure for a flueblocker

41-4: Location to Measure for a Flueblocker