It's all in the name; a ductless air conditioner works like a regular unit but without ducts. The indoor unit in the room eliminates the need for air ducts; thus, warm air is pulled in, and cold air is blown out. About 20-30% of air is lost through ducts while moving. 1- Easy installation With ductless split air conditioners is quite easy. For more details about Hot Water Tank Rentals and Purchase please visit our website: airzonehvac.