It consists in a plastic sheet with connections for an exhaust hose. This will increase energy costs and decrease the efficiency of the unit. Portable HVAC equipment has the advantage of being lightweight, portable and not requiring much space. It can be mounted horizontally or vertically on a double hung window. This is what I said Most units are rated in decibels. The coil of an air of a single air tube is cooled by the same hot air in the room. For a home with poor thermal properties, to cool the same 10 m2 or 20 m2 space, we will need between 1400 and 2880 frigories. The machine is heated, and then the intake hose draws in hot air to cool both the compressor unit and the condenser. Microbial growth can spread through the building at an alarming pace. Portable air conditioners can be used as standing air conditioning units to cool specific areas. They can cool entire houses at once. Portable air conditioners are more energy-intensive than central air conditioning units or window air conditioners because they're self-contained. As they are constantly moving around, the electricity consumption is high.