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The Fire Rock Solid Block Chimney System is a component based system comprised of a series of six (6) inch tall interlocking blocks that may be stacked as high as your specs require. These blocks are cast with "hurricane" holes for additional strengthening by adding rebar and mortar at the corners.

Other features include:

For design requirements that do not allow for a vertical chimney installation, use Fire Rock Offset Chimney Blocks.  

Offset Blocks allow you to move the chimney path so that objects may be placed above the firebox.  Offset blocks may also be used in the following scenarios:

Each Conventional Fire Rock firebox has an opening height of 34 ½ ". For designs that require a taller opening, Fire Rock offers the Height Extension Kit. 

A Height Extension Kit is a three piece unit that is set on the baseplate and raises the opening height by 8 5/8". Normal installation procedures apply.

Fire Rock Bricking Flange allows a brick or stone chimney to be used for interior fireplace installations. This product is an integral part of your Fire Rock Solid Block Chimney system and provides a ledge around the chimney for stacking brick or stone.

While any UL 103 chimney system will work with all Fire Rock fireboxes, Fire Rock recommends the Selkirk Platinum Series chimneys.