Heat transfer fluids for HVAC and refrigeration systems is the focus of a new guide from the Performance Fluids business group of the Dow Chemical Co., Midland, Mich. Introduced at the AHR Expo held in New York City in January, the company also released a PDF version on its web site at www.dowtherm.com.

For those who operate, install or recommend water-based heating or air-conditioning systems there is a lot at stake. Using the wrong fluid can lead to wear and corrosion, which causes additional maintenance and even early system replacement.

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