Introduction
This manual provides comprehensive instructions for the installation, operation, and maintenance of your Pathline Products 36-inch Fireplace Glass Doors. Designed specifically for compatible Marco fireplace units, these doors enhance safety and aesthetic appeal. Please read all instructions carefully before proceeding with installation or use to ensure proper function and safety.

Image: Pathline Products 36-inch Fireplace Glass Doors installed in a stone fireplace, showing the clear glass panels and silver finish frame.
Product Compatibility
These replacement fireplace glass doors are specifically designed to fit certain Marco fireplace models. It is crucial to verify your fireplace model number before installation to ensure proper fit and function.
Compatible Marco Fireplace Models:
- B36CF
- B36HC
- A36STD
- D36
- 792774, 792775, 792776, 792777, 792778, 792779
- 792805, 792806, 792807, 792808, 792809, 792810, 792811, 792812
Your fireplace model number can typically be found on a rating plate located on the inside sheet metal wall of the firebox. Consult your fireplace's brochure for the exact location of this tag.

Image: A visual guide indicating where to locate the model number on a fireplace's rating plate, alongside a list of compatible Marco fireplace models for these glass doors.
Safety Information
Adhering to these safety guidelines is essential for safe operation and to prevent damage to your fireplace doors or property.
- During Active Fire: Always keep the glass doors open when a fire is burning in the fireplace. Closing the doors during an active fire can cause excessive heat buildup, potentially leading to glass damage or failure.
- Maintain Clearance: Ensure that logs and other combustible materials are kept at least six inches away from the glass doors.
- Supervision: Never leave a burning fire unattended.
- Children and Pets: Keep children and pets away from the fireplace, especially when in use, to prevent burns or accidents.
- Ventilation: Ensure proper ventilation in the room when using the fireplace.
- Inspection: Regularly inspect the glass doors and frame for any signs of damage or wear. Do not use if damaged.

Image: A fireplace with glass doors fully open, revealing a burning fire and logs inside, demonstrating safe operating conditions.
Package Contents
Upon unpacking, please verify that all components are present and undamaged:
- Pre-assembled Fireplace Glass Door Unit (Silver Finish)
- Mounting Hardware (various fittings)
- Flat Wrench (for adjustments)
- Instruction Sheet (this document)
If any parts are missing or damaged, please contact Pathline Products customer support immediately.
Setup and Installation
Installation of these fireplace glass doors is designed to be straightforward. Follow these steps carefully:
- Prepare the Fireplace: Ensure the fireplace is completely cool and clean. Remove any existing screens or doors.
- Position the Door Unit: Carefully lift the pre-assembled glass door unit and slide it into the fireplace opening. The unit is designed to slide and snap into place within the existing Marco fireplace frame.
- Secure the Unit: Use the provided mounting hardware to secure the door unit firmly within the fireplace opening. Ensure all connections are tight.
- Adjust Alignment: The doors may require minor adjustments to ensure they are level and close properly, minimizing any center gap. Locate the adjustment points (often clips or screws) on the frame.
- Use Flat Wrench: Utilize the included flat wrench to make precise adjustments to the top frame clips or other adjustment mechanisms until the doors align correctly and close smoothly.
- Final Check: Open and close the doors several times to confirm smooth operation and secure fit.

Image: A detailed view of the lower section of the fireplace glass doors, highlighting the handles and potential adjustment screws on the frame.

Image: A close-up showing the interior of the fireplace with a chain mesh screen and one of the glass doors partially open, illustrating the door's mechanism.
Operating Instructions
Proper operation ensures both safety and longevity of your fireplace doors.
- Opening Doors: Gently pull the handles to open the glass doors. Ensure they are fully open and secured against the fireplace frame when a fire is burning.
- Closing Doors: To close, gently push the doors until they meet in the center. The doors should close securely, preventing drafts when the fireplace is not in use.
- During Fire: As stated in the Safety Information, always keep the glass doors open when there is an active fire. The integrated mesh screen can be used to contain sparks while the glass doors remain open.
- After Fire: Once the fire has completely died down and the embers are cool, the glass doors can be closed to prevent heat loss and keep the fireplace clean.
Maintenance
Regular maintenance will keep your fireplace glass doors looking good and functioning correctly.
- Glass Cleaning: Clean the glass panels only when the fireplace is completely cool. Use a specialized fireplace glass cleaner or a mixture of vinegar and water with a soft cloth. Avoid abrasive cleaners or harsh chemicals that can scratch the glass or damage the frame finish.
- Frame Cleaning: Wipe the metal frame with a soft, damp cloth to remove dust and soot. For stubborn marks, a mild soap solution can be used, followed by drying thoroughly.
- Hardware Check: Periodically check all screws and fasteners to ensure they remain tight. Tighten any loose hardware with the appropriate tool.
- Hinge Lubrication: If the doors become stiff to open or close, a small amount of high-temperature lubricant can be applied to the hinges.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Doors do not align or close properly. | Improper installation or shifting during use. | Re-adjust the top frame clips and other adjustment points using the flat wrench until doors are level and close with minimal gap. |
| Doors are stiff or squeak when opening/closing. | Dust/debris in hinges or lack of lubrication. | Clean hinges and apply a small amount of high-temperature lubricant. |
| Glass appears cloudy or stained after cleaning. | Residue from cleaning product or improper cleaning method. | Ensure glass is completely cool before cleaning. Use a dedicated fireplace glass cleaner and a clean, soft cloth. Avoid circular motions; wipe in one direction. |
Specifications
- Brand: Pathline Products
- Model: 36-inch Fireplace Glass Doors for Marco Fireplace
- Material: Glass
- Finish Type: Brushed (Silver)
- Product Dimensions: 36"L x 36"W (This refers to the fireplace opening size it fits)
- Manufacturer: Burgess Manufacturing Corporation
- UPC: 093411360436
Warranty and Support
For warranty information or technical support, please contact Pathline Products directly. Details regarding specific warranty terms and conditions are typically provided at the time of purchase or can be obtained from the manufacturer's customer service department. When contacting support, please have your product model number and purchase date available.
For general inquiries or assistance, you may also reach out to the seller, BURGESSUSA, through the platform where the product was purchased.