Humidifier for a fan coil

A method for performing a flush cycle of a boiler of a humidification unit, the boiler initially filled to a first water level, the method comprising:

• a) draining the boiler to substantially remove water from the boiler;
• b) subsequently filling the boiler with water to a second water level, the second water level being different from the first water level;
• c) subsequently draining the boiler to substantially remove water from the boiler;
• d) subsequently filling the boiler with water to the second water level;
• and
• e) subsequently draining the boiler to substantially remove water from the boiler.

A method for operating a boiler of a humidification unit, the boiler initially filled to a first water level, the method comprising:

• a) determining that an inactivity time of the boiler is greater than or equal to a predetermined inactivity time period;
• b) conducting, in response to the determination of step a), a flush and drain cycle such that the boiler is substantially empty in anticipation that the boiler will remain inactive for a relatively long period of time, the flush and drain cycle including:
• i) draining the boiler to substantially remove water from the boiler;
• ii) subsequently filling the boiler with water to a second water level;
• iii) subsequently draining the boiler to substantially remove water from the boiler;
• iv) subsequently filling the boiler with water to the second water level;
• and
• v) subsequently draining the boiler to substantially remove water from the boiler and leave the boiler in a substantially empty state;
• and
• c) storing the boiler in the substantially empty state.