Tetlow Furnaces feature heavy gauge, mild and stainless steel cases for improved strength. Simple designs utilise rugged components and high quality materials to assure long trouble-free service.The heating element is the heart of the electric furnace and contributes in three important ways. Heat up response, Chamber uniformity and element life. Element support is crucial for long element life. The open coil design is used to minimise temperature gradients between wire and chamber temperature. The size and temperature of your furnace will dictate element type and design.Control is the brain of any furnace and determines the efficiency of the furnace operation. Tetlow furnaces are available with a wide variety of both automatic and manual controls to match your specific requirements. From manual percentage input control, to automatic digital programmers where control accuracy is a must.The quality of the insulation is the single most important ingredient determining the efficiency and workability of any furnace. Tetlow offers the finest hot face insulating materials available today.