A glycol cooling system uses a water–glycol mixture to transfer heat while preventing freezing in low-temperature or outdoor environments. It is commonly used where freeze protection is critical to system reliability.

Glycol lowers the freezing point of the fluid, preventing pipes, coils, and heat exchangers from freezing and bursting in cold conditions while still allowing effective heat transfer.

Glycol cooling systems are commonly used in manufacturing plants, breweries, food and beverage production, data centers, cold storage facilities, laboratories, medical buildings, and outdoor process applications.

The system circulates a glycol-based fluid through equipment or heat exchangers to absorb heat, then removes that heat through a chiller, cooling tower, or dry cooler before recirculating the cooled fluid.

Glycol systems can be engineered for temperatures well below freezing and up through standard process cooling ranges, depending on glycol concentration, equipment selection, and system design.

Key benefits include:

• Freeze protection in cold environments

• Reliable outdoor and low-temperature operation

• Protection of piping and equipment

• Stable heat transfer performance

Industries that benefit most include food and beverage, pharmaceuticals, plastics, chemical processing, cold storage, data centers, medical manufacturing, and outdoor industrial processes.

If your system operates outdoors, in cold environments, or at temperatures near or below freezing, glycol is typically required to protect piping and equipment from freeze damage.

Common glycol concentrations range from 20% to 50%, depending on the required freeze protection level, operating temperature, and local climate conditions.

Warning signs include:

• Frozen or burst piping

• Low or incorrect glycol concentration

• Temperature instability

• Leaks, corrosion, or pressure loss

• Rising energy consumption

Most glycol systems should be inspected at least twice per year. Routine service includes checking glycol concentration, fluid condition, pumps, valves, heat exchangers, controls, and freeze protection performance.

Yes. Many water-based systems can be converted to glycol cooling, but material compatibility, seals, pump sizing, and heat transfer performance must be carefully evaluated before conversion.

Glycol slightly reduces heat transfer efficiency compared to water, but proper system design, correct concentration, and optimized flow rates minimize performance loss while providing critical freeze protection.

Yes. Engineered Temperature Solutions designs, installs, services, and maintains commercial and industrial glycol cooling systems across Central Ohio, ensuring proper concentration, material compatibility, and long-term reliability.

ETS combines engineering-driven system design with expert installation, preventive maintenance, and responsive repair to keep glycol cooling systems freeze-protected, efficient, and dependable year-round.