Solid Rock Core Systems

Solid Rock Masonry Heat SR-18HBO masonry heater kit with 17-inch wide firebox and integrated black bake oven. The black oven uses direct fire heating - flames and hot gases pass directly through the oven chamber before entering the heat exchange channels. During firing the oven exceeds 1,000 degrees F, cooling to approximately 650 to 700 degrees two hours after the fire for pizza, 400 to 500 degrees at three hours for hearth bread, and holding near 350 degrees for slow roasting eight or more hours after firing. The SR-18HBO heats approximately 1,500 to 1,800 square feet in Energy Star rated construction with 8-foot ceilings. 2026 Hybrid kit price: $10,073. 2026 Cast Core kit price: $12,050. Ships from Duluth MN to all regions of the United States and Canada. Designed and manufactured by Eric Moshier, Solid Rock Masonry Heat.
Solid Rock Masonry Heat SR-18HBO masonry heater kit with 17-inch wide firebox and integrated black bake oven. The black oven uses direct fire heating - flames and hot gases pass directly through the oven chamber before entering the heat exchange channels. During firing the oven exceeds 1,000 degrees F, cooling to approximately 650 to 700 degrees two hours after the fire for pizza, 400 to 500 degrees at three hours for hearth bread, and holding near 350 degrees for slow roasting eight or more hours after firing. The SR-18HBO heats approximately 1,500 to 1,800 square feet in Energy Star rated construction with 8-foot ceilings. 2026 Hybrid kit price: $10,073. 2026 Cast Core kit price: $12,050. Ships from Duluth MN to all regions of the United States and Canada. Designed and manufactured by Eric Moshier, Solid Rock Masonry Heat.
Solid Rock Masonry Heat SR-22CWO cast core masonry heater with 22-inch wide firebox and rear-facing white oven. The cast core system uses approximately 40 firebricks and 55 precision refractory castings that fit together with minimal cutting, making it the fastest and least technically demanding SR Core system to build. The white oven delivers indirect fire heat with a completely clean baking surface - no ash management required. Finished core shown before exterior stone, brick, or stucco facing is applied. SR-22CWO 2026 kit price: $13,612. Available for shipment from Duluth MN to all regions of the United States and Canada. Designed and manufactured by Eric Moshier, Solid Rock Masonry Heat.
Solid Rock Masonry Heat SR-22CWO cast core masonry heater with 22-inch wide firebox and rear-facing white oven. The cast core system uses approximately 40 firebricks and 55 precision refractory castings that fit together with minimal cutting, making it the fastest and least technically demanding SR Core system to build. The white oven delivers indirect fire heat with a completely clean baking surface - no ash management required. Finished core shown before exterior stone, brick, or stucco facing is applied. SR-22CWO 2026 kit price: $13,612. Available for shipment from Duluth MN to all regions of the United States and Canada. Designed and manufactured by Eric Moshier, Solid Rock Masonry Heat.
Use our masonry heater planning guide to build your own SR-22HBO masonry heater core kit assembled in a new construction timber frame home before exterior stone or brick facing is applied. The core shows the black bake oven opening above the firebox opening, the front heated bench section at the base, the side chimney connection, and DuraVent DVL chimney pipe already connected. The orange firebrick firebox liner and white cast refractory bench and channel components are clearly visible. This photo shows what an SR-22HBO Hybrid core looks like at the completion of core assembly, before the mason applies the 4 to 5.5-inch exterior masonry veneer. SR-22HBO 2026 Hybrid kit price: $10,508. Designed and manufactured by Solid Rock Masonry Heat, Duluth MN. Ships to all regions of the United States and Canada.
SR-22HBO masonry heater core kit assembled in a new construction timber frame home before exterior stone or brick facing is applied. The core shows the black bake oven opening above the firebox opening, the front heated bench section at the base, the side chimney connection, and DuraVent DVL chimney pipe already connected. The orange firebrick firebox liner and white cast refractory bench and channel components are clearly visible. This photo shows what an SR-22HBO Hybrid core looks like at the completion of core assembly, before the mason applies the 4 to 5.5-inch exterior masonry veneer. SR-22HBO 2026 Hybrid kit price: $10,508. Designed and manufactured by Solid Rock Masonry Heat, Duluth MN. Ships to all regions of the United States and Canada.
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