Rocket Mass Heater Stove Wood Refractory Masonry Hermon Heater

All-Brick Rocket Heater. Walls are 4.5“ thick. Wood box / air intake opens @ 4.5“ by 9“, same for burn tube, heat riser initial exhaust. 10 Bricks per layer in the heater, 16 layers high. Around 180 brick in this heater. One bag of masonry heater mortar. Absorbs lots of heat and gives it out for hours after heater shut down. Plans ? LARSmith217@ ( looking for buyer for selling rights to this heater )