The average distance is between 8" and 18". We provide a flexible air duct that allows you to place the unit where is most appropriate based on your terrain. There are three set positions: Hot-Off-Cold on the first knob. The second knob allows you select the ideal temperature for your pet. This unit has been specifically designed for all weather conditions. You will find the unit to be amazingly quiet. Cooling cost about $0.90 a day, if you operate the unit around the clock, heating costs a little more. The back of the dog house is ideal for the air holes, this position has proven most ergonomic for the dog to move in and out of his house We recommend cleaning the air-filter once a month. Should you damage the filter, two extra filters are provided. Periodically ensure that the power cord is secured to the unit and the outlet. As the system cycles the air, water is extracted and discharged out of the back of the unit via the drain. |