Meta Therm Furnace Pvt. Ltd. Supplies Glass Kiln Furnace. Meta Therm Furnace Pvt. Ltd. Is the manufacturer and exporter of precision engineered equipment and machinery products. Glass Kiln Furnace is used for bending, slumping, fusing and for decorative glass work. Glass Kiln Furnace comes with infra-red fused silica tube heater coils, light weight, low conductivity insulating material.