Masonry or Zero Clearance Fireplace

Masonry Doors:

All masonry fireplace doors or screens are designed to overlap (sit on the face of) the opening or inside(sit inside of the opening). Fireplace openings should meet the following requirements:

(Masonry Door Requirements)

• Suitable mounting surface on top and bottom of opening

• Mounting surface must be level.

• Fireplace opening should be square and level. Doors are made square. Any out of square conditions on the opening will be exaggerated, or will prevent installation.

• When measuring the height, always make note of the lowest and highest point. Example: If the lintel bar is lower than the brick, it is very important to inform FireplaceDoorsOnline.com of this. This will affect whether the fireplace door will mount correctly.

• Known as factory built, zero clearance or pre-fab fireplaces.

• Factory built fireplaces are easy to spot. If your outside chimney is faced with the same siding material as your house, you have a factory built fireplace.

• Requires a steel pipe chimney

• Added to the home during or after construction.

• Typically installed inches from combustible material.

• Firebox manufactured from metal. If there is any metal around the fireplace itself, you have a factory-built fireplace.

Factory-built fireplaces, also called " Zero Clearance" or ZC fireplaces, are designed to be built with very little clearance to combustible components of your home. They can do this because they have designed the fireplace so that cooling air insulates the hot firebox from the structure of the home. The glass doors must be designed to allow that cooling air to flow the way the firebox manufacturer designed it to flow. Gaps between the glass and frame vents exist on ZC doors to allow for this airflow.