Efficient and Reliable 71L Overhead Dehumidifier for Your Gardening Needs

Improve the quality of your indoor and hydroponic gardening environment with the high-performing Quest 155 Overhead Dehumidifier. This energy-efficient dehumidifier has a 71-litre capacity, effectively controlling humidity to prevent issues with mould and encourage healthy plant growth. Providing reliable, trouble-free operation with an innovative design, the Quest 155 Dehumidifier is your perfect companion for achieving optimal humidity levels in your cultivation facility.

Features and Benefits

  • Highly Energy Efficient: Quest 155 Dehumidifier uses the least electricity, removing more water per kWh at a wide temperature range, reducing costs and making it eco-friendly.
  • Optimal Humidity Control: Can efficiently maintain humidity levels from germination to harvest, ensuring ideal growing conditions for your plants.
  • Overhead Mount Capability: Maximise your grow space and profitability without sacrificing floor space.
  • Quality Construction: Made in the USA with industry-leading components and materials, ETL listed and UL certified, providing reliability and durability.
  • Comprehensive Warranty: Comes with a 3-year warranty, backing the dehumidifier's performance and your investment.

How to Use

  1. Identify a suitable location for the dehumidifier, preferably at the centre of the grow space to ensure even distribution of airflow.
  2. Install the unit overhead using appropriate mounting equipment, following the manufacturer's guidelines.
  3. Ensure there is adequate space above and around the unit for proper ventilation.
  4. Connect the 3/4" threaded MPT drain to your preferred drainage system.
  5. Plug the unit into a 230VAC, 50 Hz power supply.
  6. Adjust the settings according to your desired humidity level and monitor the unit's performance regularly.
  7. Periodically clean or replace the MERV-11 air filter (40.64 cm x 50.8 cm x 5.08 cm) to maintain optimal efficiency.

Aqua Gardening Suggests These are Best For

The Quest 155 Overhead Dehumidifier is perfect for indoor and hydroponic gardeners who require efficient and reliable humidity control. It is also an ideal choice for those who aim to maximise grow space and achieve higher yields with minimal energy consumption. Ideal for both commercial and home-based cultivation facilities.

Notes from Aqua Gardening

  • Dehumidifier capacities are at the standard American rating condition of 80°F and 60%RH.
  • Operating temperature ranges from 7.22°C to 35°C (45°F to 95°F).
  • Consult the manufacturer's guidelines for proper installation, maintenance, and safety precautions.


What is the main function of the Quest 155 Overhead Dehumidifier?

The Quest 155 Overhead Dehumidifier is designed to maintain optimum humidity levels in cultivation facilities, preventing issues with mould and disease while promoting enhanced plant growth.

How much water can the Quest 155 remove per day?

The Quest 155 Overhead Dehumidifier can remove 71 litres (155 pints) of water per day.

What is the efficiency of this dehumidifier?

The Quest 155 operates at an impressive efficiency of 3.73 L/kWh, making it one of the most energy-efficient overhead type dehumidifiers on the market.

Can the Quest 155 be mounted overhead?

Yes, the Quest 155 has overhead mount capability, which allows you to maximise your grow space and profits.

What is the operating temperature range for the Quest 155?

The Quest 155 can operate in temperatures ranging from 7.22°C to 35°C.

What type of air filter does the Quest 155 use?

The Quest 155 uses a MERV-11 air filter, which provides excellent filtration for your cultivation environment.

How is the Quest 155 Dehumidifier powered?

The Quest 155 is powered by a 230VAC – 1 phase – 50 Hz supply voltage and uses 800 Watts at 26.67°C and 60% RH.

What is the warranty period for the Quest 155 Dehumidifier?

The Quest 155 comes with a 3-year warranty, showcasing its reliability and the manufacturer's commitment to quality.

What are the dimensions and weight of the Quest 155 Dehumidifier?

The Quest 155 Dehumidifier measures 96.5cm in length, 55.3cm in height, and 51.4cm in width, and weighs 61kg.

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(SKU: 132216)

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Shipping Dimensions & Weight

Dimensions: 0.96m (Length) x 0.51m (Width) x 0.55m (Height)

Weight: 61.0kg

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3 Years Repair Warranty - Manufacturer warranty, this product needs to be returned to Aqua Gardening and then sent to the supplier for testing and repair.


60 Day Returns - Not available for special order items. More details...