Coolant fed humidifier having siphon drain and method therefor

A hot water humidifier with an automatic siphon drain fed with cooler source water and flushed via a drain comprising:

• a humidifier tank supplied with said cooler source water;
• an inverted substantially U-shaped siphon conduit automatically operable with respect to said humidifier tank having one end coupled to said humidifier tank and another end coupled to said drain;
• a source conduit coupled to and feeding said cooler source water to said humidifier tank;
• a valve controlling said cooler source water fed to said humidifier tank to maintain the temperature of an admixture of cooler source water and any preexisting tank water at or below a predetermined temperature during a flush cycle;
• wherein when said tank is flushed and drained via an automatic siphon based upon a level of said admixture and said siphon.

An automatic siphon drain for a hot water humidifier having a humidifier tank supplied with a valved water source and a drain located below said humidifier tank, the automatic siphon drain comprising:

• an inverted substantially U-shaped siphon conduit having an apex and two substantially downwardly facing conduit legs, the first conduit leg adapted to be fluidly coupled to a lower part of said humidifier tank and the second conduit leg adapted to be fluidly coupled to said drain, said apex of said conduit positioned at a level above the coupling of said first conduit leg to said lower part of said humidifier tank;
• a water source intake adapted to be fluidly coupled to said valved water source;
• a valve control adapted to control said valved water source, said valve control controlling the flow of water through said valved water source to maintain the temperature of an admixture of said water and any preexisting humidifier tank water at or below a predetermined temperature during a flush cycle of said tank;
• and
• wherein said first conduit leg fills with said admixture as said humidifier tank is substantially filled with said admixture during said flush cycle until said admixture reaches said apex of said conduit creating a siphon whereupon said admixture is automatically siphoned into said drain until said admixture substantially reaches the level of said fluid coupling of said first conduit leg.