FireRock Systems Outdoor Model FireRock offers a simple way to build a high-end, all-masonry fireplace and chimney. This smartly designed system installs in a matter of hours for less than half the cost of a traditional brick and mortar fireplace. Not only does it look great, it lasts forever. About the Outdoor Model: FireRock’s solution for use in outdoor living spaces Firebox and chimney deliver on a single pallet