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How to Install Pleasant Hearth Fireplace Doors

Installing a Pleasant Hearth fireplace door is a straightforward DIY project that takes about 30-60 minutes. This guide walks you through measuring, mounting, and adjusting your new doors for a perfect fit. Need help choosing the right size? Check our sizing guide first.

Tools & Materials Needed

• Power drill with masonry bit
• Phillips screwdriver
• Level
• Tape measure
• Pencil
• Safety glasses
• Included mounting hardware
• High-temperature sealant (optional)

Installation Steps

  1. 1
    Measure your fireplace opening. Measure the width at the top and bottom, and the height on both sides. Use the smallest measurement for each dimension. Your opening must fall within the door's adjustable range — check the product specs. See our sizing guide for detailed instructions.
  2. 2
    Unpack and inspect. Lay out all components — door frame, glass panels, mounting brackets, screws, and fiberglass insulation strips. Verify nothing is damaged and all hardware is present.
  3. 3
    Attach the mounting brackets. Slide the adjustable overlap brackets onto the door frame. Position them to match your fireplace width. Tighten the bracket screws finger-tight — you'll fine-tune the position after test-fitting.
  4. 4
    Apply the fiberglass insulation. Stick the included fiberglass strip along the back edges of the door frame. This seals the gap between the frame and the brick, preventing drafts and heat loss.
  5. 5
    Position the door in the opening. Lift the assembled door frame into the fireplace opening. Center it and use a level to ensure it's straight. The overlap brackets should rest flat against the brick face.
  6. 6
    Mark and drill. With the door centered and level, mark the screw hole locations on the brick through the mounting brackets. Remove the door, drill pilot holes using a masonry bit, and insert the included anchors.
  7. 7
    Secure the door. Place the door back in position and drive the mounting screws through the brackets into the anchors. Tighten evenly on both sides. Check level one more time.
  8. 8
    Test the doors. Open and close the bi-fold glass panels to ensure smooth operation. Adjust the bracket position if the doors rub or don't close evenly. Once everything moves freely, fully tighten all screws.

Pro Tips

  • Wait 24 hours before your first fire if you used high-temperature sealant around the frame.
  • Leave the damper partially open when the doors are closed during a fire — the fire needs air supply through the vent slots at the bottom of the door.
  • Close the doors fully after the fire dies to prevent warm room air from escaping up the chimney.
  • Clean the glass with a non-abrasive fireplace glass cleaner after every few fires to prevent creosote buildup.

Frequently Asked Questions

Can I install Pleasant Hearth fireplace doors myself?
Yes. Most Pleasant Hearth fireplace doors are designed for DIY installation with basic tools — a drill, level, and screwdriver. The included mounting brackets adjust to fit standard masonry fireplace openings. No masonry work or special skills required. Most installations take 30-60 minutes.
Do Pleasant Hearth fireplace doors fit all fireplaces?
Pleasant Hearth doors fit most standard masonry (brick) fireplace openings. They do NOT fit prefabricated (zero-clearance) metal fireplaces. Measure your opening width and height and compare to the model's adjustable range listed in the specs. Most models have adjustable overlap brackets that cover a range of sizes.
Do I need a lintel clamp or overlap bracket?
It depends on your fireplace opening. Most Pleasant Hearth doors include both options. Lintel clamps attach to the metal lintel bar at the top of the opening. Overlap brackets mount to the face of the brick surround. Choose whichever method works best for your fireplace — overlap brackets are more common and easier to install.

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