With 14,000 BTUs for cooling and 11,000 BTUs for heating, this AC/heater unit can control the temperature of a 700-square-foot room. It also has a strong dehumidifier function, evaporating up to 111 pints of water over the course of a day. Should you need it, the DELLA also comes with a drain hose in case it reaches water storage capacity. The unit’s LED display lets you control fan speed, temperature and mode. There are four modes: cool, heat, sleep, and dry. It also has energy efficient timer and sleep functions, ensuring that it doesn’t run when unnecessary. The air filter is removable and washable.