Hybrid - A hybrid air-con unit works by using a combination of electric power and fossil fuels. It has a dual use, in that it can be utilized to expel scorching air outside the house in the summertime, and within the Wintertime it's going to do the other to maintain https://restaurant-and-bar-ventil52963.thekatyblog.com/28803611/the-definitive-guide-to-restaurant-and-bar-ventilation