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Quest 70 Overhead Dehumidifier - 120V
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Quest 70 Overhead Dehumidifier - 120V

by Quest
SKU: 22624

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The Quest 70 Overhead Dehumidifier - 120V is an efficient and compact solution, ideal for smaller spaces requiring effective humidity control. This unit, designed to operate on a standard 120V power supply, is capable of removing up to 70 pints of moisture per day, making it perfect for residential areas, small grow rooms, or office spaces. Its overhead installation design is a significant advantage, saving valuable floor space while providing consistent and effective dehumidification. The Quest 70 is known for its energy efficiency, ensuring lower electricity consumption without compromising on its moisture removal capabilities. With its durable construction and user-friendly interface, this dehumidifier offers reliable performance and ease of use, making it an excellent choice for maintaining optimal humidity levels in smaller, more confined areas. The Quest 70 Overhead Dehumidifier is a practical and effective tool for protecting your space from the adverse effects of excess moisture.
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Quest 70 Pint Overhead Dehumidifier

Elevate your indoor grow operation with the Quest Dehumidifier, the epitome of energy efficiency and productivity. This powerhouse removes more water per kWh at a wide temperature range, minimizing electricity use and lightening the HVAC heat load. Bid farewell to crop losses from molds and pests and embrace higher yields. Quest's innovative design tackles powdery mildew and botrytis issues, safeguarding your revenue. Their dehumidifiers offer flexible options for proper sizing, placement, and airflow control, ensuring an optimal environment for your indoor cultivation success.

Product Overview

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Warranty Policy

Product Overview

Invest in success with Quest Dehumidifier for energy-efficient indoor grow operations. Its innovative design minimizes HVAC heat load, ensuring rapid ROI. Combat threats like powdery mildew and bud rot with Quest's proper sizing, placement, and airflow control options. Whether in a greenhouse or hydroponic system, Quest provides flexible and customizable solutions for optimal conditions and crop protection.

Quest: Pioneering Energy-Efficient Dehumidifiers for Optimal Performance

Quest leads the market with the most energy-efficient dehumidifiers, offering high capacity, superior air filtration, and a comprehensive humidity control product line. Renowned for top-quality solutions, Quest ensures optimal conditions for various applications and provides superior U.S. technical support. Every Quest product comes with a full warranty, showcasing the brand's commitment to quality and customer satisfaction. With innovative patented technology developed in Madison, Wisconsin, Quest is a trusted name for unparalleled efficiency and technical excellence in dehumidification.

Energy Efficiency

High Capacity and Quality

Smart Technology

Superior Air Filtration

Comprehensive Product Line

U.S. Technical Support and Service

Full Warranty

Patented Technology

QUEST'S PATENTED TECHNOLOGY | M-CoRR™

Quest sets the industry standard by providing the most energy-efficient dehumidification solutions, a feat achieved through our exclusive patented multi-coil design, known as M-CoRR (Multi-Coil Refrigeration Recovery). This groundbreaking technology is unique to Quest, setting our dehumidifiers apart from the competition.

M-CoRR is meticulously engineered for maximum performance, positioning Quest as the pinnacle of energy efficiency and offering the best return on investment.

The technology's innovative design excels across a broad spectrum of dew points, even in colder temperatures, and maintains optimal capacity regardless of fluctuations in airflow. This ensures that Quest dehumidifiers not only stand out for their unparalleled efficiency but also prove to be a wise investment, paying for themselves through significant energy savings over time.

How Does Quest's M-CoRR Technology Work?

Quest's M-CoRR Technology revolutionizes dehumidification by utilizing three separate coils - pre-evaporator, evaporator, and recovery coil. This innovative approach enhances efficiency by kickstarting the cooling process, extracting water efficiently, and recycling energy. Quest's commitment to pushing technology boundaries ensures superior moisture control and energy utilization in dehumidification systems.

Highlighted features of M-CoRR

Highest Efficiency.
Lowest Energy Usage

Higher efficiency = lower electricity usage per pint of water removed. M-CoRR technology pulls more water out of the air per kilowatt hour than any other dehumidification technology. Period.

Less Heat Output

Inefficiency = Heat. It takes energy to run the fan and compressor in your dehumidifier. During dehumidification, this energy converts to heat that warms your room. The more energy your dehumidifier consumes, the more heat it expels. Quest dehumidifiers featuring M-CoRR technology are the most efficient dehumidifiers in the world, which means they put less heat in your environment.

More Capacity,
Smaller Footprint

Your space is valuable. Dehumidifiers powered by M-CoRR are more compact. This technology averages over 20% smaller than traditional LGR dehumidification technology of the same capacity.

Quest Dehumidifier 70 - Overhead Series

Controlling humidity in compact, unconditioned commercial spaces presents unique challenges, demanding a solution designed for precision and adaptability. Introducing the Quest 70, a compact yet high-performing dehumidifier engineered in Madison, Wisconsin. This economical unit is specifically crafted to address the distinctive challenges of variable temperatures and constrained placement often encountered in such spaces.

The Quest 70 boasts one of the broadest temperature and relative humidity operating ranges available, ensuring effectiveness in diverse conditions. Moreover, it comes with the assurance of a 5-year warranty, reflecting the product's durability and reliability. Notably, the Quest 70 aligns with California Title 24 requirements for both ducted (whole-home) and non-ducted (portable) installations, providing a compliant and versatile solution for your compact commercial environment.


FAQ Section

How do I size a dehumidifier for a grow room?
Plants transpire about 97% of the water they receive, so the amount of water your plants consume is approximately the amount that needs to be removed each day. For example, 30 plants each receiving ½ gallon per day is an average of 15 gallons water per day. Every gallon of water is 8 pints. This example works out to 120 pints per day.
Isn’t my air conditioner a dehumidifier?
Yes, but there are issues with this solution.
1. Air conditioners remove water only when they are running. In most cases when the grow lights are off, the air conditioner is off as well. Lights-off time is when humidity is most problematic.
2. Using an air conditioner to dry a room will overcool the room, potentially causing plant stress. This will also use a significantly greater amount of energy than a Quest commercial dehumidifier.
3. The more energy efficient the air conditioner, the less moisture it actually removes. An efficient air conditioner is a terrible dehumidifier.
4. The re-heat method. Some air conditioners offer an optional heating coil as a dehumidification option. Essentially, by adding artificial heat to the room, the air conditioner is forced to operate when the lights are off and thus the air conditioner removes water. While this method works, and can be used in a pinch, it’s a poor long term solution and will use 4-8x the energy as a Quest dehumidifier. 4-8x the energy use is roughly equal to $5,000-$25,000 per year in unnecessary energy consumption.
What is the ideal humidity?
Because every plant is different, it is hard to pick just one number. However, most research indicates that 45-55% RH is the safe zone where plants are healthy, spore germination is unlikely, and pests find the environment unappealing.
How much money does a Quest dehumidifier save me in electricity?
Quest is the leader in energy efficiency and one of our models is the most energy efficient dehumidifier ever built. Depending on the model, Quest dehumidifiers can save commercial growers $100-$200 a month in electricity per unit. That’s $1,200-$2,500 per dehumidifier per year.
Can the water be reused?
Yes, Quest dehumidifiers produce neutral pH, very low TDS water. This water is safe for all plants, even consumable ones.
Is there a warranty for this product?
Please check the warranty tab on this page for warranty information.
How long will shipping take?
Please check our shipping policy here for shipping information.
What is the return policy?
Please check our return policy here for return policy information.

Quest 70 Specifications

@ 80° F / 60% RH
Water Removal 70 Pints/Day
Efficiency 5 Pints/kWh
Energy Factor 2.4 Liters/kWh
Current Draw 5.1 Amps
Power 680 Watts
BTU (Total) 5,000
BTU (Heat) 3,000
BTU (Motor Load) 2,000
@ 75° F / 50% RH
Water Removal 43 Pints/Day
Efficiency 3.3 Pints/kWh
Energy Factor 1.6 Liters/kWh
Current Draw 4.9 Amps
Additional Specifications Quest 70
Part Number 4033750
Dehumidifier Type Refrigerant Dehumidifier
CFM 150
Operating Temperature 33°-100° F
Supply Voltage 110–120 VAC, 1 Phase, 60 Hz
Unit Dimensions 12" W x 12" H x 21.5" L
Unit Weight 55 lb
Control Type Onboard w/ low voltage terminal block
Air Filter MERV Rating MERV 13
Air Filter Dimensions 9" x 12" x 1"
Power Cord 110-120 VAC
Refrigerant Type R410A
Refrigerant Amount 15 oz
Drain Port Connection 3/4" Threaded NPT
Warranty 5 Year

Items in the box

Quest 70 Dehumidifier Unit

Power Cord

Drain Hose

User Manual

Warranty Information

Warranty Policy

Please Click Here to view our return and warranty policy