A system and method for supplying bottled water to an appliance is provided, where the water bottle is opened as it is positioned on the appliance. The appliance includes an operational portion and a bottle receiving portion. The operational portion can be any appliance which utilizes water in its operations, such as humidifiers, vaporizers, coffeemakers, tea makers, dental water jets, and the like. The bottle receiving portion includes a conduit defining a fluid path, where the conduit is in fluid communication with the operational portion. The conduit has a first end with a piercing member for piercing the bottle, and a second end in fluid communication with the operational portion. When a water bottle is positioned in the bottle receiving portion, the piercing member pierces the bottle, allowing the water to exit the bottle along the fluid path to the operational portion of the appliance.