What factors should determine whether to use a glycol/water loop, a thermal oil system, or chilled water for industrial heating and cooling?

The best fluid choice depends on the required operating temperature, system footprint, and process demands. Choose a glycol/water loop when freeze protection or corrosion inhibition is needed for moderate-temperature heating or cooling, especially in outdoor or unheated environments.

Opt for a thermal oil system when high, stable temperatures (up to ~300–350 °F or above) are required without the pressure constraints of steam, where vapor pressure and fluid stability matter. Use chilled water when you need low-temperature cooling or where simplicity, ease of maintenance, and conventional water pumps suffice.
Each option affects fluid viscosity, heat transfer efficiency, pump sizing, and maintenance requirements, so matching fluid properties to operational needs ensures reliable, efficient loop performance.

 
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