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Zero-Clearance Z-Heritage Fireplace Door

Be sure to take all measurements to the nearest 1/16” using a steel tape measure. Note any irregularities around the opening of the fireplace, such as projecting or recessed brick, and advise us before you place an order. For complex custom applications, a photograph of the fireplace will prove very helpful.


4-SIDED OVERLAP FIT (for suspended openings)
When the fireplace door is larger than the opening on ALL 4-SIDES of the fireplace. Measure the width of the steel box opening at the top and again at the bottom. We need the exact minimum width. Next, measure the height of the steel box opening. We need the exact minimum height. Make sure there is enough space for the bottom frame to overlap your fireplace opening!


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


Size Range For Pricing: Up To41"W and Up To 24"H


Short description:

   Free Shipping on All Orders Continental United States!  Free Shipping | Fabrication Time 5-6 Weeks For BLACK Doors - Other Colors Add 4 Weeks

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].

The Z-Heritage Zero-Clearance Fireplace Glass Door—a striking fusion of style and functionality meticulously crafted by Thermo Rite. Elevate your fireplace aesthetics with this fireplace door, featuring a substantial 1-3/4-inch wide welded steel frame, available in several distinct powder coat options to seamlessly complement your decor.

Designed exclusively for prefab fireplaces, the Z-Heritage ensures a seamless fit and optimal performance. Choose between trackless bi-fold doors or cabinet (twin) doors, both featuring lifetime-warranted tempered glass, providing clarity and peace of mind. The 1/4″ welded steel plate enclosure with a 1 3/4″ wide frame is available as an overlap fit, suitable for zero clearance boxes with marble, tile, or any non-combustible material up to 5/8″ thick.


Designed for Factory-Built Fireplaces: The Heritage enclosure is tailor-made for prefab fireplaces, ensuring a perfect fit and optimal performance.

Free Shipping: Enjoy complimentary shipping on your Z-Heritage fireplace door. Please allow 4 to 6 weeks for production and transit time, as each door is meticulously crafted to perfection.

Warranty: Benefit from a 5-year warranty on the door frame and a lifetime warranty on the robust 1 3/4-inch wide by 1/4-inch thick welded steel plate frame.

Customizable Fit: Available as both an overlap or inside fit, the Heritage door offers customization based on your fireplace needs, including options with or without a damper.

Powder Coat Finishes: Explore fifteen powder coat finishes through our informative video, ensuring you find the perfect complement for your living space.

Door Styles: Choose between trackless bi-fold or tracked bi-fold doors to tailor the appearance to your preferences.

Tempered Safety Glass: Standard with 1/4-inch thick tempered safety glass with a lifetime warranty, providing both clarity and peace of mind.

Glass Options: The Heritage Door comes standard with clear glass and offers the flexibility to upgrade to bronze or grey glass for a personalized touch.

Mesh Protection: Consider upgrading for added safety with available mesh protection, especially recommended for open-door fireplace burning.

Comfort Grip Handles: Enjoy the convenience of top-mounted comfort grip handles that complement the overall design.

Assembly: Some assembly is required, but worry not—all mounting hardware is included for a straightforward installation process.

Transform your fireplace experience with the Heritage Prefab Fireplace Door—a stylish and durable addition that combines aesthetics with safety, ensuring a secure and captivating focal point in your home. Redefine your living space with the Z-Heritage Zero-Clearance Fireplace Glass Door from Thermo Rite.


  • Fireplace Type: Prefab Wood Fireplaces or Prefab Wood Fireplaces Converted To Vented Gas Logs
  • Door Fit: Overlap | Inside
  • Door Type: Trackless Bi-Fold Full Swing Doors | Tracked Bi-Fold Full Swing Doors
  • Frame Width: 1 3/4
  • Frame Depth: 3/4"
  • Material: 1/4" Welded Steel Frame
  • Glass: 1/4" Tempered Safety Glass (lifetime warranty)
  • Glass Tints: Clear | Bronze | Grey
  • Ceramic Glass: N/A
  • Mesh Screen: (Optional)
  • Damper: N/A
  • Handles: Included
  • Airtight Option: N/A
  • Assembly: Some Assembly Required
  • Mounting: Hardware Included


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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Last updated on January 2nd 2024.



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