GEIL Natural Draft Kilns
The frame construction of all GEIL Fiber Lined Natural Draft Kilns consists of heavy gauge structural strength steel. All frames are welded at each joint, providing maximum strength and durability. The exterior consists of a dual-wall type construction using 9 gauge expanded metal with galvanized sheet metal. An air gap is provided between the two, producing a cooler exterior temperature.
Each model has full width, front loading doors and has been specifically designed to minimize the area between the door opening and the setting space, alleviating strenuous loading and unloading
The ceramic fiber interior lining consists of a two-stage component system featuring a high density, 12 lb. Monolithic Block and a high density, 12 lb. Edge Grain Veneer Facing. Each Monolithic Block is attached to the shell with a stainless steel attachment clip and sealed with a high temperature sealant. The 12 lb. Edge Grain Veneer is attached to form the Hot Face capable of temperatures to 2500° F (cone 14).
All ceramic fiber materials used in the construction of GEIL Kilns have been specifically designed and manufactured to GEIL specifications for high fire applications. Each kiln comes equipped with natural draft, high velocity, ceramic venturi burners specifically designed and developed by GEIL Kilns to produce excellent fuel-air mixture without the need of electric blowers. These burners provide for simple and trouble-free firing.

The use of ceramic fiber as a kiln insulator offers the kiln user several important advantages over kilns constructed with a conventional refractory insulation.

Lightweight: Ceramic fiber linings are 75% lighter than insulating fire brick linings and 90-95% lighter than dense refractory linings.

Low Heat Storage: Low heat storage is the most important advantage of a ceramic fiber lining. Heat storage is directly proportionate to the weight of the material used in the kiln lining. The lighter the lining, the fewer BTUs needed to bring the kiln up to temperature. The BTUs required to fire is directly related to energy consumed. Thus, the fewer the BTUs consumed, the more energy conserved.
Moreover, the kiln can achieve its maximum temperature more quickly and can cool down faster over kilns constructed with insulating fire brick. Shorter operating cycles increase productivity and save wear and tear on the kiln.

Thermal Shock Resistance: Fiber linings are completely immune to damage from thermal shock. Therefore, predetermined heat up/ cool down cycles dictated by the kiln's lining are eliminated. Once the firing cycle is completed, access to the kiln can be immediate without fear of damaging the lining.

Thermal Efficiency: Fiber linings are thermally more efficient then conventional refractory linings. The low thermal conductivity of fiber means the lining thickness can be reduced, thereby decreasing outside dimensions. Additionally, fiber heats at a more uniform rate, allowing for a more uniform temperature distribution within the kiln chamber.

Resiliency: In that fiber is extremely resilient and withstands movement well, kilns are transported easily without fear of damage. Kilns are test fired in our factory prior to shipping which eliminates any possible problems before they start.

Ease of Repair: Should physical damage to the lining occur, the damaged section is simply cut out with a knife and new material inserted. Repairs are made quickly with a minimal amount of expense and downtime.

Energy Savings: Research has shown that ceramic fiber kilns conserve as much as 30-40% in energy over comparably sized insulating fire brick kilns. Such tremendous savings means much faster payback periods.

 

GEIL Forced Draft Kilns
Forced Draft models are the same superior construction technique as that of the Natural Draft models, with the exception of the burner system. A standard Forced Draft system incorporates the use of an electric blower to force air through the burners to insure complete combustion. Call for Specifications and Pricing.