Industrial ovens, types of heating, electric, gas, steam, thermal oil.8

Methods of Heating: There are various methods of heating an Industrial Oven;

Electric Heating: An electrically heated oven will usually comprise of a fan assisted recirculating air system incorporating a bank of electric heating elements within the airflow system to provide the heat source.

Direct Gas Fired: A direct gas fired oven will usually comprise of a fan assisted recirculating air system incorporating a gas burner that fires directly into the airflow system to provide the heat source.

Indirect Gas Fired: An indirect gas fired oven will usually comprise a fan assisted recirculating air system incorporating a heat exchanger with a gas burner that fires directly into the heat exchanger system to provide a "clean" heat source that is not contaminated by the "products of combustion" from the gas burner.

Indirect Steam: An indirect steam heated oven will usually comprise of a fan assisted recirculating air system incorporating a heat exchanger with the steam injected directly into the heat exchanger system to provide a "clean" heat source that is not contaminated by the steam.

Indirect Thermal Oil: An indirect thermal oil oven will usually comprise of a fan assisted recirculating air system incorporating a heat exchanger were the hot oil circulates through the heat exchanger system to provide a "clean" heat source.

Electric Infra Red: Electric "radiant" heat source radiates heat directly to the workpiece.
May incorporate a "contra flow" air circulation system to improve heat transfer to work items with complex shapes. Typically used in conveyorised Tunnel Ovens.

Gas Infra Red: Gas "radiant" heat source radiates heat directly to the workpiece.

Note: As a general guide, I/R "heats what it see's" so it's not always suitable for products with complex shapes or varying thickness.