Quest Product Documents
HIGHER YIELDS, FEWER PROBLEMS - The right dehumidification setup can take your indoor grow operation to the next level. Say goodbye to crop losses from molds and other pests, and say hello to peak productivity with the Quest Dehumidifier.
The Quest Overhead Dehumidifier offers horizontal configuration, patent-pending dual outlet design and insulated cabinet for quieter operation. These features enable their exceptional performance in almost any application. The Quest Dehumidifier is plug and play, requiring no installation. You can add an optional condensate pump and ducting kits to provide ultimate flexibility for the most challenging space restrictions and specialized applications. MERV-11 filtration is standard on these units, capturing particles (including mold spores) down to 1 micron in size.
Note: * Quest Overhead Hanging Bracket Included (Dual 110, 150)
Why use a Quest Dehumidifier?
- The most energy-efficient dehumidifiers on the market
- High capacity, high quality dehumidifiers with superior air filtration
- The most complete humidity control product line
- Superior U.S. technical support and service
- A full warranty on every Quest product
- Patented technology developed in Madison, Wisconsin
Quest Dehumidifier Model Specifications:
Quest Dehumidifier 70 Specs
Moisture Removal Capacity: 70 PINTS/DAY AT 80F, 60% RH Efficiency: 5.0 PINTS/KWH Power: 5.1 AMPS, 110-120V AIR-FILTER: MERV-13, 12” x 12” x 1” Supply Voltage: 120 Volt Weight: 55 LBS Dimensions: 21"L x 12"W x 12"H
Quest Dry 70 Dehumidifier - Controlling humidity in compact, unconditioned commercial spaces presents unique challenges. You don't need a huge dehumidifier, like the 506 or 876, but you have to combat excess moisture somehow. For grows like this, the Quest Dry 70 Dehumidifier is your best option. This compact, budget friendly, high performing dehumidifier has one of the widest temperature and relative humidity operating ranges we offer.
Quest Dehumidifier 105 Specs
Moisture Removal Capacity: 105 PINTS /DAY AT 80F, 60% RH Efficiency: 8.8 PINTS/KWH Power: 4.9 AMPS, 110-120V AIR-FILTER: MERV-11 SIZE: 16" X 20" X 2" Supply Voltage: 120 Volt Weight: 140 LBS Dimensions: 38"L x 20.25"W x 21.75"H
The Quest Dehumidifier 105 is the world’s most energy efficient dehumidifier: Using only 4.9 amps, the Quest Dual 105 removes 105 pints of water per day. It gives you the flexibility to hang the unit overhead or use ductwork and keep the dehumidifier in a different space entirely. Like all Quest products, the Dual 105 is made in the USA using the very best components and materials available.
Quest Dehumidifier 110 Specs
Moisture Removal Capacity: 110 PINTS/DAY AT 80F, 60% RH Efficiency: 5.8 PINTS/KWH Power: 7.4 AMPS, 110-120V AIR-FILTER: MERV-8 SIZE: 16" X 20" X 2" Supply Voltage: 120 Volt Weight: 85 LBS Dimensions: 26"L x 14.5"W x 19.4"H
Quest Dehumidifier 110 is one of the smallest and lightest mid-size dehumidifiers on the market, but its BIG on dehumidification. It offers awesome moisture removal without taking up much space in your grow room — you can even hang it overhead out of the way — at an affordable price. The Quest Dual 110 removes more water using less electricity, and will last years longer than the competition. Capable of removing up to 110 pints of moisture per day, this is a great option for small-mid size grows.
Quest Dry Dehumidifier 150 Specs
Moisture Removal Capacity: 150 PINTS PER DAY AT 80°F/60% RH Efficiency: 4.8 PINTS/KWH Power: 10.9 AMPS, 110-120V AIR-FILTER: MERV-8 SIZE: 16" X 20" X 2" Supply Voltage: 120 Volt Weight: 95 LBS Dimensions: 26"L x 12.5"W x 21"H
Quest Dry 150 Dehumidifier removes almost 20 gallons a day in your garden. This is our most powerful mid-sized overhead type dehumidifier. Dollar per pint, the Quest Dual 150 is the most affordable professional-quality dehumidifier on the market today. Like all Quest products, the Dual 150 is made in the USA using the very best components and materials available. Every one of our dehumidifiers comes with a 5 year warranty. Dehumidifier capacities are at the standard American rating condition of 80ºF and 60%RH.
Quest Dehumidifier 155 Specs
Moisture Removal Capacity: 155 PINTS/DAY AT 80F, 60% RH Efficiency: 7.3 PINTS/KWH Power: 8.0 AMPS, 110-120V AIR-FILTER: MERV-11 SIZE: 16" X 20" X 2" Supply Voltage: 120 Volt Weight: 140 LBS Dimensions: 38"L x 20.25"W x 21.75"H
Quest Dehumidifier 155 is one of the most energy-efficient commercial dehumidifiers on the market today, capable of removing 155 pints of water per day. This unit can save you thousands of dollars every year on your energy bill compared to the competition. It gives you the flexibility to hang the unit overhead or use ductwork and keep the dehumidifier in a different space entirely. Rest assured knowing you are getting a quality product from a reputable brand, designed and manufactured right here in the USA.
Quest 165 Dehumidifier Specs
Moisture Removal Capacity: 165 PINTS/DAY AT 80F, 60% RH Efficiency: 6.8 PINTS/KWH Power: 4.1 AMPS, 220-240V Features: TERMINAL BLOCK WITH 24V WIRING FOR EXTERNAL CONTROL OPTIONS, REQUIRES A BUCK/BOOST TRANSFORMER TO RUN ON 208V/277V, ONBOARD DEHUMIDISTAT Supply Voltage: 240 Volt Weight: 160 LBS Dimensions: 38"L x 20.25"W x 21.75"H
The Quest 150 not quite enough for you? Well, at only 3.4 amps, the Quest Dual 165 Dehumidifier is one of the most energy-efficient commercial dehumidifiers on the market today, but still saves a ton of space. Removing 165 pints of water per day, this unit is a money saving machine for your grow room. Designed with flexibility to hang overhead or ducted the 165 is ideal for efficient commercial growing. The Dual 165 is made in the USA just like all Quest products, using the very best components and materials available.
Quest 185 Cool Dehumidifier Specs:
Moisture Removal Capacity: 185 PINTS/DAY AT 80F, 60% RH Efficiency: 6.6 PINTS/KWH Cooling: 4300 BTUS/HOUR COOLING Power: Dehu - 1.4 AMPS, 110-120V / Condenser - 9.7 AMPS, 110-120V AIR-FILTER: MERV-11 SIZE: 16" X 20" X 2" Supply Voltage: 120 Volt Weight: 109 LBS / 75 LBS Dimensions: 38"/33"L x 20.25"/10"W x 21.75"/25.5"H
Quest 185 Cool Dehumidifier - If heat is your problem, the Quest 185 Cool is your solution. The Quest 185 Cool is a very efficient split-system dehumidifier that removes 184 pints of water per day while it also removes 4300 BTUs/hr. of heat. The unit’s two-piece design transfers the sensible heat normally generated by the dehumidifier inside the room to the condensing unit (located outside the room). Removing this unwanted heat minimizes wasted energy by reducing room air conditioner run time. The Quest 185 Cool Dehumidifier is one of the most technologically advanced solution to two of the biggest problems in your grow room - heat and humidity.
Quest 205 Dehumidifier Specs
Moisture Removal Capacity: 205 PINTS PER DAY AT 80F, 60% RH Efficiency: 5.7 PINTS/KWH Power: 13.2 AMPS, 110-120V Features: TERMINAL BLOCK WITH 24V WIRING FOR EXTERNAL CONTROL OPTIONS, ONBOARD DEHUMIDISTAT AIR-FILTER: MERV-11 SIZE: 16" X 20" X 2" Supply Voltage: 120 Volt Weight: 150 LBS Dimensions: 38"L x 20.25"W x 21.75"H
Quest 205 Dehumidifier uses 13.2 amps at 115V and removes 5.7 pints/kWh, making it over 46% more efficient than Energy Star standards. For commercial grows looking to save money and maximize profit, you cannot go wrong with the Quest 205. It was designed to be placed overhead and out of the way, but can also be placed at ground level for plug and play operation. The Dual 205 was designed to be powerful yet energy efficient - and it does just that. The Quest Duals' horizontal configuration, patent pending dual outlet design and insulated cabinet for quieter operation enable their exceptional performance in almost any application.
Quest Dehumidifier 225 Specs
Moisture Removal Capacity: 225 PINTS/DAY AT 80F, 60% RH Efficiency: 6.1 PINTS/KWH Power: 6.9 AMPS, 220-240V Features: TERMINAL BLOCK WITH 24V WIRING FOR EXTERNAL CONTROL OPTIONS, ONBOARD DEHUMIDISTAT Supply Voltage: 240 Volt Weight: 160 LBS Dimensions: 38"L x 20.25"W x 21.75"H
Quest Dehumidifier 225 is the industry’s first 230 volt commercial dehumidifier. Like all Quest Overhead Dehumidifiers, it can be placed at ground level for plug and play operation or hung overhead out of the way. This is part of what makes the quest 225 so sought after - its versatility. The Dual 225 is one of the most energy efficient dehumidifiers on the planet performing using minimal amps (6.9) and maximum efficiency (6.1 pints/kWh). Compared to most standard dehumidifiers (3.8 pints/kWh), the Dual 225 will save up to $2,000 per year in electricity. It is made in the USA.
Quest 506 Dehumidifier Specs
Moisture Removal Capacity: 506 PINTS/DAY AT 80F, 60% RH Efficiency: 8.1 PINTS/KWH Power: 13.6 AMPS, 220-240V Features: PATENT-PENDING COIL TECHNOLOGY UNLIKE ANYTHING ELSE ON THE MARKET, LOW VOLTAGE TERMINAL BLOCK FOR EXTERNAL CONTROLS, INTEGRATED HANDLES, DUCTABLE INTAKE AND DUAL EXHAUST KITS AVAILABLE Supply Voltage: 240 Volt Weight: 275 LBS Dimensions: 44.7"L x 28.9"W x 33.8"H
Industrial grow operations demand industrial-sized solutions. That’s why we developed the Quest 506 Dehumidifier. Powered by patent-pending coil technology that isn’t available anywhere else, the Quest 506 is designed to work round-the-clock to optimize your grow environment with maximum energy efficiency & flexibility. The Quest 506 Dehumidifier uses a refrigeration system similar to an air conditioner's to remove heat and moisture from incoming air, and add heat to the air that is discharged.
Hot, high-pressure refrigerant gas is routed from the compressor to the condenser coil. The refrigerant is cooled and condensed by giving up its heat to the air that is about to be discharged from the unit. The refrigerant liquid then passes through a filter/drier and expansion drier which causes the refrigerant pressure and temperature to drop. It next enters the evaporator coil where the cool refrigerant absorbs heat from the incoming air and evaporates.
Quest 876 Dehumidifier Specs
Moisture Removal Capacity: 876 PINTS/DAY AT 80F, 60% RH Efficiency: 6.6 PINTS/KWH Power: 24.7 AMPS, 220-240V Features: PATENT-PENDING COIL TECHNOLOGY UNLIKE ANYTHING ELSE ON THE MARKET, LOW VOLTAGE TERMINAL BLOCK FOR EXTERNAL CONTROLS, INTEGRATED HANDLES, DUCTABLE INTAKE AND DUAL EXHAUST KITS AVAILABLE Supply Voltage: 240 Volt Weight: 340 LBS Dimensions: 29"L x 45"W x 34"H
Designed with indoor growers in mind, the Quest 876 dehumidifier is the largest capacity dehumidifier on the market, built for the largest and most humid growing environments. Regardless of the size of your grow room, the Quest 876 can help you keep your environment where it needs to be. It is powered by Quest's patented coil technology that you won't find in any other brands. The Quest 876 works around the clock, whether you are in the grow room or not, to optimize your growing environment and atmosphere with the utmost efficiency and flexibility.
- Product Q&A
Quest Overhead Dehumidifier Questions & Answers
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 if I live in Arizona, New Mexico or a dry state, do I need a dehumidifier?
While it may be dry outdoors, growing in a sealed environment changes things a good bit. Growers using sealed rooms, even in the driest of outdoor climates, almost always require dehumidifiers. The higher quality of the grow room design and construction, the more critical a dehumidifier will be.
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.
- Tech Specs