The natural
gas-fired humidifier generates steam for humidification, using gas burners which are fired
into a heat exchanger. The heat exchanger is
submerged in a tank of water. When there is a call for humidity, the burners fire and
generate steam until the call for humidity ends.

Legend |
| 1.
Stainless steel boiler |
8.
HumiControl |
| 2.
Aluminum heat exchanger |
9.
10. 11. Water inlet assembly |
| 3.
Clean-out cover |
12. Fill cup -
conductivity probes |
| 4.
High level foam probes |
13. Boiler
overflows |
| 5.
Forced draft gas burner |
14. Triple
float level control |
| 6.
Gas inlet |
15. Boiler
temperature sensor |
| 7.
Flue temperature sensor |
16. Drain pump |
|