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Inside Fit Thinline Prefab Fireplace Glass Door

You may need to remove the track to install the fireplace door, so measure accordingly. You will need to measure the fireplace opening in three different places, both vertically and horizontally to the nearest 1/16". Enter the smallest size into the price calculator.


INSIDE FIT (inside firebox opening)

When the fireplace door is smaller than the opening of the fireplace, and fits inside the fireplace opening. Measure the width and height of the inner steel opening where the fireplace door will fit. This will be the same position that the fireplace manufacturer's door was installed. DO NOT measure the finishing material in front of the fireplace (brick, stone, marble, tile, etc). Always use the exact MINIMUM measurements for both height and width when ordering a replacement fireplace door.


DO NOT make adjustments to sizes, we need the EXACT OPENING size

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   Free Shipping on All Orders Continental United States!  Free Shipping | Fabrication 4-5 Weeks For BLACK Doors

INSET DEPTH This is the distance from the face of the zero-clearance fireplace to any existing obstruction inside the opening. The inset depth affects the amount that the enclosure will fit into the opening. For example, the Door frame is 1-1/8” deep. If the inset depth is 1”, the face of the enclosure will protrude 1/8” from the firebox.
If no images are submitted with your order, it will be placed on hold until we receive a photo of your fireplace. Please send your image to [email protected].

Upgrade your living space effortlessly with the Textured Black Finish Thin Line Zero Clearance Fireplace Door—an economical and stylish accessory by Thermo-Rite Manufacturing of Akron, OH.


Sleek Inside-Fit Design: Handcrafted from welded steel, the Thin Line Zero Clearance Fireplace Door is designed for zero-clearance applications. It offers an affordable opportunity to enhance and upgrade your fireplace without breaking the bank.

Textured Black Finish: The Thin Line features a textured black finish, providing a minimalist and sleek appearance that complements any home decor.

CV2-Tracked Bi-fold Doors: The enclosure comes standard with CV2-tracked bi-fold doors, offering a variety of choices with bronze, clear, or grey glass. The inside-fit design makes it suitable for a range of zero-clearance fireplace openings.

Unobstructed View: Enjoy an unobstructed view of the flames with the Thin Line's welded ¾" steel angle enclosure. This inside-fit design provides a generous and stylish view of the flames.

Easy Installation: The Thin Line comes fully assembled, ensuring a hassle-free installation process. Benefit from free shipping for added convenience.

Lifetime Warranty: Standard Glass – ¼" tempered bronze, clear, or grey glass comes with a lifetime warranty, providing clarity and peace of mind.

Customizable Glass Options: Choose clear glass for your tracked bi-fold doors, or opt for a subtle bronze or grey tint to match your preference.

Slim Frame Design: The Thin Line features a slim ¾" steel angle frame, providing a minimalist and stylish view of the flames.

No Spark Protection: Please note that spark protection is not available for the Thin Line model.

Enhance your living space with the Textured Black Finish Thin Line Glass Fireplace Enclosure—economical, yet crafted with style and quality to last a lifetime. Please note that this is an inside fit-only door, providing an impressive and unobstructed view of the flames in your zero-clearance fireplace. Proudly made in the USA!


  • Fireplace Type: Prefab Wood Fireplaces or Prefab Wood Fireplaces Converted To Vented Gas Logs
  • Door Fit: Inside
  • Door Type: Tracked Bi-Fold Doors
  • Frame Width: 3/4"
  • Frame Depth: 3/4"
  • Material: Welded Steel
  • Powder Coat Finish Color: Textured Black
  • Glass: 1/4" Tempered Safety Glass (lifetime warranty)
  • Glass Tints: Clear
  • Ceramic Glass: N/A
  • Mesh Screen: N/A
  • Damper: N/A
  • Airtight Option: N/A
  • Assembly: Some Assembly Required
  • Mounting: Hardware Included
  • Safety Listing: UL127 | UL907


Manufacturer's Warranty

Thermo-Rite warrants all new glass fireplace enclosures to be free from defects in material and workmanship for a period of five (5) years from the ultimate sale or installation if performed by the dealer. The warranty is void if the damage is due to improper installation or improper operation. Thermo-Rite warrants tempered glass a lifetime to the original owner.

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How do you attach a mesh screen to this door? my old one has clips that slide into the end to hold the end of the screen rod, this door has nothing

Asked by Bonnie Ogden | 08-03-2018, 07:16 PM | 1 answer(s)
Last updated on January 10th 2024.



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