Quest Dual 225 Overhead Commercial Dehumidifier - 230 Volt

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225 pints per day at 80°F/60% RH Heavy Duty Commercial Grade 225 pints per day at 80°F/60% RH energy efficient dehumidifier uses minimal amps (6.9) and max efficiency (6.1 pints/kWh). UL and ETL Listed. Plant safe reusable water. Ground level or wall mounting flexible installation options.
Quest Dual 225 is in fact the industry's first 230 volt commercial dehumidifier! Like all Quest products you have the option of placing it ground level for plug and play operation or hung overhead up and out of the way.

The Dual 225 is one of the most energy efficient dehumidifiers out right now 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 could save up to $2,000 per year in electricity.

Made in the USA for highest safety and environmental standards

The Quest Dual 225 is UL-listed and ETL certified. Manufactured in the USA and built to last, it comes with a five-year powertrain warranty. The Dual 225 uses environmentally-friendly R410A refrigerant. Created using high environmental standards allows the Quest Dual 225 to create reusable water thats safe to use on consumable plants.

Produces Reuseable Water

Quest dehumidifiers produce very low TDS water with neutral pH. This water is safe to reuse for all plants, even consumable ones. (With Best Practices)

Best Practices to Reuse Condensate Water

Run your dehumidifier if it's been idle first
If your dehumidifier has been sitting idle, run it for three days before using any condensate water from it. (Dehumidifiers that are allowed to sit for more than a couple of days should be dried out as completely as possible, to discourage mold growth.)

Test condensate: Be sure it's free of contaminates
Contaminate levels should be low enough and well within acceptable limits as long as your dehumidifier is in good working order and has proper filtration. It is always a good idea to test condensate water for heavy metals, nitrates, and bacteria – and state law may require you to if you are a commercial grower.

Keep your dehumidifier and filter clean
Quest dehumidifiers will produce condensate water that can be used as-is, as long as you keep the filter in place and clean regularly. Dust, bacteria, and other pollutants can contaminate condensate water if the dehumidifier's filter is absent or not maintained properly.

Keep your dehumidifier running continuously and recycling water
Why? Because just using and reusing condensate water over and over again keeps it clean. Only if you always use a high-quality, clean air filter during operation, the constant recycling of the dehumidifier's condensate water discourages mold growth. Keep the filter in place, and follow the filter guidelines for it; clean or replace the filter as directed.


  • 225 pints per day at 80°F/60% RH
  • 6.9 amps
  • 230V Power with 24V pigtail control wiring
  • 6.1 pints/kWh
  • 24V control
  • Proudly made in the USA

Warranty: 1 year parts and labor. 5 year compressor and refrigerant system. GrowersHouse has no role in providing technical support or warranty fulfillment on Quest Dehumidifiers. Contact Quest directly for service or support.

There is an optional condensate pump and ducting kit that provides the most in flexibility for 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.
More Information
NameQuest Dual 225 Overhead Commercial Dehumidifier - 230 Volt
Alternate SKU/MPN4035400
Weight (lbs)151
WarrantyCompressor 5 year, Parts 1 year
Dimensions37.875 w x 21.75 h x 20.25 d
ETL ListedYes
UL ListedYes
FREE ShippingYes