For the first time, the thermal performance of closed-circuit cooling towers has been certified with fluids other than water by Cooling Technology Institute.

The thermal performance of the FXV, VF1 and VFL closed-circuit cooling towers, manufactured by Baltimore-based Baltimore Aircoil Co., has been certified by CTI with both ethylene and propylene glycol as the process fluid.

BAC has been a supporter of independent verification of the thermal performance of evaporative coolers through the CTI certification program for more than 25 years. The value of having certified products is now widely recognized.

Currently, CTI has a total of 43 certified products that are manufactured by 18 different manufacturers. For more information on the growth of the certification program, visit