Forain indirect water bath heaters (IHF) are designed for all applications where preheating of gas or other fluids is required. Indirect gas heaters consist mainly of firetubes enclosing burners and coil containing gas to be heated. They are called “indirect heaters” because a medium (water-glycol mixture or oil) is used to transmit heat (thermic exchange) generated by the burner and received by the gas.

The heaters can be supplied with regulation and safety systems either of electric or pneumatic type, wherever electricity is not available. In fact, they are installed mainly in remote areas because of their reliability, high performance and low maintenance cost.

The heater consists of three main components: the firetube, the media (water or oil) and the process coil. The operating principle is due to the circulation of hot water or oil into the shell. The firetube is installed in the lower part of the shell while the process coil is placed above it. The combustion of fuel transmits heat to the firetube and through this to the water or oil bath. In its movement the hot bath heats the coil walls and subsequently the cold gas inside.

Forain indirect water bath heaters do not require any special maintenance, all controls and inspections are indicated in the manual of use and maintenance supplied with the equipment. All activities on site can be performed by our specialized technicians.