Quest 335 Dehumidifier – 208/230V, 345 Pints/Day High-Efficiency Commercial Moisture Control
Engineered for serious commercial growers needing powerful, efficient, and consistent humidity control
The Quest 335 Dehumidifier (208/230V) is designed for large-scale cultivation environments that demand high performance and low energy consumption. Capable of removing up to 345 pints per day, this unit delivers exceptional efficiency at 8.5 pints/kWh thanks to Quest’s patented M-CoRR multi-coil technology, which recycles heat to reduce A/C demand while increasing moisture removal.
Built for reliability and precision, the Quest 335 helps growers maintain ideal environmental conditions—protecting crops, optimizing growth, and reducing utility costs. Integrated digital controls and compatibility with external environmental systems ensure complete customization and automation, while a compact footprint and multiple mounting options make it easy to install in any grow space.
Achieve next-level efficiency with the Quest 335 High-Efficiency Dehumidifier — built in the USA and fully compliant with California Title 24 energy standards.
Whether you're upgrading your existing setup or expanding into a larger facility, the Quest 335 Commercial Dehumidifier is a smart, scalable solution trusted by professionals nationwide.
✅ Key Features
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Removes up to 345 pints of moisture daily, ideal for mid-to-large grow rooms
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Exceptional energy efficiency: 8.5 pints per kilowatt-hour
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208/230V input with low 7.6A–8.4A draw for reduced energy load
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M-CoRR multi-coil heat recycling reduces space heat and A/C runtime
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Digital onboard controls with external controller compatibility
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Meets California Title 24 for both ducted and portable installs
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Lightweight and compact for overhead or floor mounting
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Engineered and assembled in Madison, Wisconsin
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ETL listed and backed by a 5-year warranty
Quest 335 Commercial Dehumidifier: Smart Moisture Control for Cultivators
The Quest 335 Commercial Dehumidifier is ideal for grow rooms that generate large volumes of moisture. Its compact design is built around efficiency and reliability, offering growers powerful control while minimizing energy costs and BTU load. It’s a high-output solution designed to operate seamlessly in cultivation environments where consistency is key.
🌿 Ideal Applications
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Indoor grow rooms and hydroponic facilities
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Commercial greenhouses
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Drying or curing rooms
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Agriculture and horticulture spaces
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Food processing or manufacturing areas
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Grow environments needing 208/230V power
Quest 335 High-Efficiency Dehumidifier: Lower BTU Output, Maximum Performance
What sets the Quest 335 High-Efficiency Dehumidifier apart is its unique M-CoRR Technology, which uses a multi-coil system to recycle heat, reducing heat output into your space. This means less air conditioning usage, more stable grow environments, and better long-term performance. It's one of the most cost-effective commercial units on the market when you factor in efficiency and energy savings.
🛠️ Maintenance Tips
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Replace the onboard filter every 1–3 months for peak air quality
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Ensure coils are clean and airflow remains unobstructed
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Confirm drainage is functioning to prevent backup or overflow
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Use external controllers (like TrolMaster) for precise RH control
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Inspect wiring and mounting if unit is overhead
🔒 Upgrade to Smart, Scalable Humidity Control with the Quest 335
Trusted by professional growers, the Quest 335 delivers power, precision, and performance where it matters most. Whether you're expanding operations or upgrading older systems, this high-efficiency unit is built to keep your environment stable and your harvests protected.
Installation Options
Freestanding Unit
Can be mounted overhead with use of 3/8″ Threaded Rod
P-Trap Requirements
Specifications
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Moisture Removal: 345 Pints/Day @ 80°F, 60% RH
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Energy Efficiency: 8.5 Pints/kWh
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Voltage: 208–230V
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Amperage: 8.4A @ 208V / 7.6A @ 230V
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Frequency: 60 Hz
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Wattage: 1,150 W
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BTU Output: 14,155 BTU/hr
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Dimensions: 36.0" L x 28.0" W x 30.0" H
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Product Dimensions (Unboxed): 26.8" L x 23.6" W x 20.9" H
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Weight (Unit): 130 lbs
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Shipping Weight: 240 lbs
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Filtration: MERV-13
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Certifications: ETL Listed, Title 24 Compliant
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UPC: 810017961580
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Product Code: 4046200
User Manual
FAQ
Q: What is M-CoRR technology and how does it help?
A: M-CoRR is Quest’s patented multi-coil design that recycles heat, improving moisture removal efficiency and reducing the unit’s heat output into your grow space.
Q: Can I use the Quest 335 with an external controller?
A: Yes, it’s fully compatible with third-party systems like TrolMaster or other commercial environmental controllers.
Q: What size facility is this dehumidifier best for?
A: It's ideal for mid-to-large grow rooms, generally up to 5,000 sq ft depending on plant density and conditions.
Q: Does this unit work with both 208V and 230V?
A: Yes, it supports both voltages and adjusts amperage draw accordingly.
Q: Is it wall-mountable or only floor/suspended?
A: The unit includes suspension points and integrated handles for flexible mounting—overhead or freestanding.
Q: Does it meet energy compliance standards?
A: Yes, it meets California Title 24 for both ducted and non-ducted installations.
Q: What warranty does it come with?
A: The compressor and coils are covered for 5 years, with 1 year on parts and labor.
Videos
Warranty
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5 Years – Compressor & Coils
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1 Year – Parts & Labor
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Fully supported by Quest's U.S.-based service team