ChillKing has been successfully building and installing high quality, commercial grade chillers and complete water cooling systems at several popular restaurant chains for over 10 years, and is now expanding on that successful history by making their products available to the gardening industry. Each chiller is individually tested for specific BTU output, and if its output doesn’t exceed compressor size, it doesn’t ship. The two-horsepower, 24,000 BTU, 220-volt ChillKing Window-Mounted Chiller features a Ranco digital temperature controller, filter/dryer, copper ChillKing evaporator, evaporator freeze protection, and a freeze-tested evaporator.