Flueless, low NO.sub.x, low CO space heater
Furnace with radiant burndown tube
Gas-permeable thermal insulator
Heating mantle with a porous radiation wall
High-temperature, non-catalytic, infrared heater
Indirect-fired, all ceramic pyrochemical reactor
Method of drying gypsum wallboard and apparatus therefor
Method of drying gypsum wallboard and apparatus therefor
Process for treating a semiconductor material by blackbody radia
Reactor combustion control method and reactor