We have been making forms for various options related to our Core22 model including rounded downdraft channels and a corner configuration. The firebox is 22.5″ deep, and 18″ wide. The core is intended to heat 2000+ square feet of living space with a 4-6″ masonry skin. Engineered to be installed with standard 2.25″ X 4.5″ X 9″ firebrick, we think this set of 24 precast refractory modules will simplify masonry heater core installation. We recommend HiHeat High-Duty brick in the firebox, and low or medium duty brick above the throat.
