Indirect Fired Heater Design

Eclipse recirculating high temperature rht indirect air heating burners are designed to heat recirculating ovens and dryers where the products of combustion must be isolated from the process air stream.

Indirect fired heater design.

You can see this design in our photo the blue tank is the indirect fired water heater and also in our sketch at page. The guidelines and procedures included herein are appropriate for a typical direct fired heater of the types found in refineries and gas plants and is not expected to include specialty heaters or furnaces that include reaction in the tubes due to heat or catalysts. Temperature control of an indirect fired heater is not as precise as a direct fired heater as it often under or overshoots the desired. Indirect fired heaters glycol and glycol v ater baths salt bath thermal fluids single and multiple furnaces standard u tube or multi return sizes from 250 000 to 20 mm btu hr natural gas indirect glycol water bath heater.

Tankless systems are typically electric oil or gas fired. Indirect fired combustion equipment is that in which the flame and products of combustion are separated from any contact with the principal material in the process by metallic or refractory walls. They are also excellent for use in industrial space heating systems. Indirect fired heaters are just like your home oil or gas burning furnace with a chimney.

In addition to our first class fabrication exotherm is known for offering a safe and robust control system. These water heating systems work with forced air systems and hydronic or radiant floor heating. Due to it s design direct fired heaters are easy to transport and easy to maintain. Indirect systems can be fired by gas oil propane electric solar energy or a combination of any of these.

Indirect fired water heaters are a modern system and are in current sales and use. Examples are steam boilers vaporizers heat exchangers and melting pots. Fired heater design manufacturing. Guidelines for vertical cylindrical fired heater design.

With propane or natural gas heating units the flame is contained in a burn chamber which heats a heat exchanger. The cooler air passes over and around the heat exchanger thus heating the air. Visit tankless coil and indirect water heater basics for more on how they work. Direct fired heaters are efficient has a lower fuel consumption rate and lower operating costs as compared to indirect fired heaters.

Where an indirect fired water heater is installed the coil is inserted not in the heating boiler but rather in the bottom of a hot water tank. Indirect fired heaters also have lower turndown ratios than direct fired heaters resulting in less ability to vary the heat output unless additional heat exchangers are added to improve turndown. Exotherm corporation is a leader in the design and manufacturing of custom engineered process heaters for direct and indirect heating applications. Heater construction on a platform in the gulf mexico.