Adding a thimble to your ventillation kit is an important part of your ventillation process. With this thimble kit from FMI/Superior, you can finish your vent kit, and you can complete the installation of your fireplace. This small accessory is an affordable way to make sure that your fireplace will continue to run smoothly, and it will help improve the circulation and air flow inside your fireplace. The sturdy materials are durable and long lasting, making this a long lasting part of your vent system.
- Firestop thimble kit
- Designed for FMI or Superior gas appliances that require 5" x 8" venting systems
- Intended to serve as an attic insulation shield in vertical vent applications