Quest 876
High-Capacity Series
@ 80 F | 60% RH
- Capacity 876 Pints/Day
- Efficiency 6.6 Pints/kWh
- Supply Voltage 220-240V
- Current Draw 24.7 Amps

Overview
Powered by patented coil technology that isn’t available anywhere else, the Quest 876 dehumidifier is designed to work round-the-clock with maximum energy efficiency and flexibility. Featuring integrated handles and hang points, this powerhouse machine can be suspended overhead, freeing up valuable floor space.
M-CoRR Technology
The Quest 876 dehumidifier boasts our unique patented M-CoRR technology. This multi-coil refrigeration design recycles excess heat to provide the highest efficiencies available on the market, while reducing heat (BTUs) output into your space.
The Quest 876 is engineered and assembled in Madison, Wisconsin, USA. It’s backed by a 5-year warranty providing confidence in your purchase. In addition, this unit meets California Title 24 requirements for ducted (whole-home) installation.
key features

HIGH EFFICIENCY
Pulling more water per kilowatt hour than any other brand, saving energy and dollars

PATENTED MULTI-COIL TECHNOLOGY
Achieves highest efficiencies
available in the market

INDUSTRY’S LOWEST AMP DRAW
More efficient units have less heat output and free up electricity for other equipment
Features
OVERHEAD OR GROUND PLACEMENT
Built to fit what works for your space
WIDEST OPERATING RANGE
Of temperature and relative humidity
UL RATED AND ETL LISTED
The highest safety standard
INTEGRATED HANDLES
For ease of movement
MERV 13 FILTRATION
Superior filtration removes more harmful contaminants from the air such as dust, pollen and mold as well as bacteria and some viruses
AUTO RESTART
Unit automatically defaults to prior settings in the event of a power outage
Specifications
@ 80 F / 60% RH
Water Removal
876 Pints/Day
Efficiency
6.6 Pints/kWh
Energy Factor
3.1 L/kWh
Current Draw
24.7 Amps
Power
5,500 Watts
BTU (Total)
58,200
BTU (Heat of Condensation)
39,600
BTU (Motor Load)
18,600
@ 75 F / 50% RH
Water Removal
614 Pints/Day
Efficiency
5.2 Pints/kWh
Energy Factor
2.5 Liters/kWh
Current Draw
22.4 Amps
california title 24 compliant
Ducted Energy Factor
6.2 Pints/kWh @ 73 F | 60% RH
Part Number
4037600
Dehumidifier Type
Refrigerant Dehumidifier
CFM
1,850
Operating Temperature
56 F Min–95 F Max
Supply Voltage
220–240 VAC, 1 Phase, 60 Hz
Unit Dimensions
44.8″ L x 28.9″ W x 34.1″ H
Unit Weight
350 lb
Control Type
Requires external control
Air Filter MERV Rating
MERV 13
Air Filter Dimensions
18″ x 20″ x 2″
Power Cord
Hardwire Only
Refrigerant Type
R410A
Refrigerant Amount
6 lb 4 oz
Drain Port Connection
3/4″ Threaded NPT
Warranty
5 Year
Sizing & Selection

How to properly size your dehumidification equipment (VIDEO)
Getting at how much humidity control you need isn’t the international man of environmental control mystery, like many of us think. In fact, how to properly size your dehumidifiers is relatively straightforward IF you have the necessary data.
Read More →
Grow room dehumidifiers: Perfect your setup
When the team at East Coast Cultivation set out to build its new indoor grow operation in Rhode Island, it knew it had to nail one thing: environmental controls.
Read More →
Vapor Pressure Deficit and Why it Matters
The gardening world is filled with trends and phrases that come and go as quickly as they’re created. Sometimes these concepts are thrown around without full understanding, especially with the more scientific processes. One of the most misunderstood concepts is vapor pressure deficit, or VPD, as it’s commonly called.
Read More →Need Help Sizing?
Our humidity experts are standing by to assist.
Installation Options

Freestanding unit

Can be mounted overhead with use of 3/8″ Threaded Rod

P-Trap Requirements
Quest 876: Discover your potential savings.
How much does your energy cost?
How much water do you need to remove?
How much does the competing dehumidifier cost?
Quest 876
Machines/Room
4
Equipment Cost @ MSRP 4 × $13394.95
$ 4800
Vegetation Period (4 Weeks) 80F/60%, Filter 100%
$ 2400
Flower Period (7 Weeks) 75F/55%, Filter 50%
$ 1600
Flower Period (2 Weeks) 70F/50%, Filter 25%
$ 114
Operating Costs Per 3mo Grow Cycle
$ 4114
Yearly Costs
$ 16,457
× 5
Year 1 4 Grow Cycles
$ 16,457
Year 2 4 Grow Cycles
$ 16,457
Year 3 4 Grow Cycles
$ 16,457
Year 4 4 Grow Cycles
$ 16,457
Year 5 4 Grow Cycles
$ 16,457
Total Cost (5 Years) Equipment + Operating Cost
$ 123631
Competitor 710
Additional competitor units may be needed to address total water removal at rated conditions due to ppd de-rated capacity.
Quest 876: 556 gal/day de-rated capacity
Competitor 710: 383 gal/day de-rated capacity
4
Equipment Cost @ MSRP 5 × $11067.47
$ 4800
$ 3304
$ 3177
$ 240
Operating Costs Per 3mo Grow Cycle
$ 4114
Yearly Costs
$ 16,457
× 5
Year 1 4 Grow Cycles
$ 16,457
Year 2 4 Grow Cycles
$ 16,457
Year 3 4 Grow Cycles
$ 16,457
Year 4 4 Grow Cycles
$ 16,457
Year 5 4 Grow Cycles
$ 16,457
Total Cost (5 Years) Equipment + Operating Cost
$ 180012