Dunn Heat Exchangers

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Texas City, TX  |  409-948-1704

At Dunn Heat Exchangers, we take pride in our comprehensive expertise in designing, manufacturing, and servicing high-quality heat exchangers for a wide range of industrial applications. Our commitment to innovation and quality assurance ensures that our products meet the rigorous demands of our clients, providing reliable and efficient thermal management solutions. We understand that each application requires a tailored approach, and we leverage our technical knowledge to create heat exchangers that optimize performance while maintaining durability and safety standards.

Our team is dedicated to providing customized solutions that align with the specific operational needs of our clients. From initial concept to final installation, we work closely with our customers to deliver heat exchangers that not only meet but exceed their expectations. We focus on enhancing heat transfer efficiency, minimizing downtime, and extending the operational life of the equipment. Our manufacturing process integrates precision engineering and high-quality materials to ensure consistent performance even in the most demanding environments.

Beyond manufacturing, we offer comprehensive maintenance and repair services, aimed at maximizing the longevity and efficiency of the heat exchangers we deliver. Our skilled technicians are equipped to handle inspections, troubleshooting, and complete refurbishments, allowing us to support the continuous operation of critical systems. We prioritize minimizing operational interruptions and offer timely and cost-effective solutions to ensure our clients' systems remain fully functional.

We are committed to maintaining long-term partnerships by offering unparalleled technical support and responsive customer service. Our dedication to quality and innovation is reflected in every aspect of our work, and we strive to be the trusted partner for heat exchanger solutions across diverse industries.

Heat Exchanger Power Pages

Air-to-Air Heat Exchangers

Air to Air Heat Exchanger Functioning

An air-to-air heat exchanger (AAHX) is an essential part of a balanced ventilation system, where warm extracted air is utilized and transferred to the incoming air supply. This process enables the recovery of heat from the expelled air to warm the cold fresh…

Heat Exchangers

Heat Exchangers

Heat exchangers are pieces of equipment used to transfer heat between two or more fluids. This process usually involves abundant working or utility media such as water or air that rejects or absorbs heat from a more valuable fluid such as crude oil, petrochemical feedstocks, and fluidized products…

Shell and Tube Heat Exchangers

Shell and Tube Heat Exchangers

A shell and tube heat exchanger (STHE) is a type of heat exchanging device constructed using a large cylindrical enclosure, or shell, that has bundles of perfectly spaced tubing compacted in its interior. Heat exchanging is the transfer of heat from one substance or medium to a similar substance or medium…

Liquid-to-Liquid Heat Exchangers (LLHE)

Liquid-to-Liquid Heat Exchanger

Liquid-to-liquid heat exchangers (LLHE) are heat exchangers that heat or cool liquids by transferring heat from one liquid to another without the liquids making contact. The exchange of heat is accomplished by the liquids coming into close contact through…

Plate Heat Exchanger

Plate Heat Exchanger

A plate heat exchanger (PHE) is a compact type of heat exchanger that utilizes a series of thin metal plates to transfer heat from one fluid to the other. These fluids are typically at different temperatures…

Chillers

Chillers

A chiller is a cooling mechanism designed to produce fluids that can lower temperatures by removing heat from the fluid. The type and use of a chiller depends on the required temperature and kind of refrigerant, which can be a liquid or a gas…

Cooling Towers

Cooling Towers

Cooling towers are specialized heat exchangers that remove heat from water mainly by means of latent heat loss from evaporation while coming into contact with an airstream. Aside from evaporative cooling, water is also cooled by sensible heat transfer due to the temperature difference between air and water…

Glycol Chillers

Glycol Chillers

A glycol chiller is a chilling system that uses a percentage of glycol mixed with water to create extremely low temperatures far beyond the freezing point of water. The two types of glycol are ethylene glycol based or propylene glycol based…

Industrial Air Conditioners

Portable Industrial Air Conditioner

Industrial air conditioners are large-scale systems specifically engineered to cool expansive industrial spaces, such as warehouses and factories. While they operate using a cooling method similar to that of residential air conditioners, industrial units boast a significantly higher cooling capacity…

Open & Closed Loop Cooling Towers

Open & Closed Loop Cooling Towers

Open loop cooling tower makes use of direct contact with the air in order to cool down the water. It is essentially a heat exchanger. In these types of cooling towers, there is the partial heat transfer due to heat exchange between…

Process Chillers

Process Chiller System

A process chiller is a cooling unit that circulates water to remove heat from industrial processes. Using a closed loop system, process chillers absorb heat by transferring it from circulating water to a refrigerant. The wide use of process chillers…

Steam Boilers

Steam Boilers

A steam boiler is a steam producing heating system. It creates energy by heating water to get steam. It is a heat exchanger that makes steam for outside usage and has a combustion chamber and water container. The several varieties of steam boilers include…

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