Abstract: A water recycling system and method to be incorporated with an installed hot air furnace with an add-on humidifier via simple electrical and water flow connections. The water recycling system maintains a pump reservoir which pumps recycled water into the humidifier. The pump reservoir is fed in large part from water draining out of the humidifier. The humidifier's water supply valve maintains sufficient water. Water is lost only through evaporation and not by draining. The water recycling system water-valve operation is based on sensed water levels, pump activity, and humidifier on-off status. Water flows over the humidifier's water panel to produce a high degree of moisturization while recycling the water so as to avoid wasteful use.

Abstract: An embodiment of a valve has a frame defining cusps at a downstream end. Valve leaflets are attached to the frame and arranged to allow fluid flow within the frame in a downstream direction but not in an upstream direction. A sewing ring is provided at the downstream end of the valve. A shroud connects the sewing ring to the frame.