Anden Steam humidifier 11.5 - 34.6 Gallons/Day w/fan pack and Model 5558 ControlThe Anden model AS35FP is a high capacity electrode type humidifier which runs independently of your HVAC system. The humidifier is capable of between 11. 5 and 34. 6 gallons per day, providing humidity to grow rooms up to 6,200 square feet. Running on cold water, the Anden AS35FP generates steam by energizing the two electrodes in the steam canister. Current flowing in between the electrodes causes the water to boil, creating steam. Steam is