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Quest 506 Commercial Dehumidifier 500 Pint



1 in stock



Quest 506 Commercial Dehumidifier 500 Pint

Quest 506 is the industry’s first 500 pint, 230 V 1 phase, commercial dehumidifier designed for commercial growing at scale.
Like all Quest products it can be placed at ground level for immediate operation or hung overhead and out of the way.
The Quest 506 is the most energy-efficient, high-capacity dehumidifier on the planet, using minimal Amps (11) and maximum efficiency (8.1 pints/kWh).
It is made in the USA.
Optional condensate pump and ducting kits provide the 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.


506 PINTS/DAY AT 80F, 60% RH (506 PINTS | 239 LITERS | 63.3 GALLONS)

Patent-Pending Coil technology unlike anything else on the market.

Efficincy of 8.1 pints/kwh

Ductable Intake and Dual Exhaust Kits available

Integrated Handhles

Low Voltage terminal block for External controls

Requires a buck/boost Transformer to run on 208V/277V

10′ Cord legth into 230V outlet; Can be hard-wired.


Store has no role in providing technical support or warranty fulfillment on Quest Dehumidifiers. The end user must contact Quest directly and provide a valid sales receipt or date of manufacture. Stores to deny returns of Quest Dehumidifiers.

QUEST product(s) are prohibited from being sold online without prior written authorization from Therma-Stor, LLC.

  • QUEST product(s) are prohibited from being displayed with a shopping cart option or click to purchase tab on a main web page. Links from a main web page to another resale are also prohibited.
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  • “Call for Pricing” is not acceptable anywhere on a webpage.
  • Any verbiage stating an unfair advantage over another retailer/contractor, or special pricing (I.E. – “lowest price guaranteed”), is prohibited.
  • Therma-Stor reserves the right to determine and unacceptable action at any time.

Please contact Therma-Stor for further clarification if there is any question regarding product placement on the internet.
Therma-Stor contact information:
Keith Reagan

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