Anden Steam Humidifier w/Fan Pack and Digital Humidistat

Electrode Steam Humidifier with Fan Pack – 11.5 to 34.6 Gallons per Day

The Anden AS35FP is a high-capacity electrode-type steam humidifier that operates independently of the facility's HVAC system. It generates steam by energizing two electrodes submerged in a steam canister — the electrical current causes the water to boil, producing clean steam. Output is modulating: the AS35FP adjusts its steam output based on the difference between the set point and actual RH, ramping down as the target approaches rather than cycling on/off at full capacity.

Steam is delivered into the grow or drying room via the included fan pack. At 11.5–34.6 gallons per day output, the AS35FP can provide humidity to spaces up to 6,200 square feet. The unit includes extensive safety and operational automation: an internal control board manages fill cycles, drain cycles, and water level monitoring. After 72 hours with no demand, the unit drains the canister automatically for an end-of-season standby state. The AS35FP includes the Model 5558 humidistat, drain trap assembly, 6-foot steam hose, and 10-foot drain tubing. Professional HVAC installation is required.

Key Features & Benefits

• Electrode Steam Generation — Generates steam by passing current through water — clean steam output with no heating elements to replace.
• 11.5–34.6 Gallons/Day Modulating Output — Modulating output adjusts to demand, operating at partial capacity as the RH setpoint approaches.
• Coverage Up to 6,200 Sq Ft — Appropriate capacity for large grow and drying rooms up to 6,200 square feet.
• Fan Pack Included — Integrated fan pack delivers steam into the grow or drying space evenly.
• Model 5558 Humidistat Included — Precision digital humidistat included for RH monitoring and setpoint control.
• Automatic Safety Features — Internal control board manages fill, drain, water level, and end-of-season drain functions automatically.
• Drain Water Tempering — Uses cold inlet water to temper drain water below 140°F to protect PVC piping.

Who Should Use This Humidifier

The Anden AS35FP is suited for large grow facilities and commercial drying rooms that require significant humidity output independent of the HVAC system. Its modulating control, automatic drain cycling, and included fan pack make it a self-contained humidification solution for large indoor growing environments. HVAC professional installation is required.

Modulating Control in Steam Humidifiers

Unlike simple on/off humidistats that run the humidifier at full output until the set point is reached, the AS35FP uses modulating control that varies steam output based on the difference between actual RH and the target. When the RH is far below the set point, the unit runs at higher output. As RH approaches the target, output is reduced to prevent overshooting the set point. This results in more stable, consistent humidity levels compared to on/off control, which tends to cause humidity swings above and below the target.

Frequently Asked Questions

What is the steam output of the AS35FP?

The Anden AS35FP produces 11.5 to 34.6 gallons of steam per day with modulating output.

What is the maximum coverage area?

The AS35FP is designed for spaces up to 6,200 square feet.

What is included with the AS35FP?

The AS35FP includes the steam humidifier, fan pack, Model 5558 humidistat, drain trap assembly, 6-foot steam hose, and 10-foot drain tubing.

Does it require professional installation?

Yes. The Anden AS35FP requires installation by a licensed HVAC professional.

What is the end-of-season drain function?

After 72 hours with no humidity demand, the AS35FP automatically drains the canister and enters standby mode until the next call for humidification.

Can I use any water with the AS35FP?

Water conductivity affects performance and drain frequency. The appropriate steam canister (AS80 or AS80LC) is selected based on local water conductivity. Do not use softened water.