My brewery is located in my basement, which can very greatly from a temperature standpoint. Having the neoprene jacket plus an electric heater with the temperature controller allows me to produce ales even in the winter months when it could be as low as 45 to 50° in my basement
Nice snug fit and easy installation. Have only used it on one batch but with my homemade glycol chiller was able to hold my fermentor at 42 degrees in a 90 degree garage! Highly recommended ??