Portable CDG 174 Dehumidifier by Quest for Grow Rooms

The Quest CDG 174 removes up to 176 pints of moisture per day on standard 120V power at 10 amps, sized to run on a typical circuit without dedicated electrical work. It's built as a fully portable unit rather than an overhead-mount model, with 12-inch recessed wheels sized for rolling it between rooms or drying chambers without wrestling it across a floor.

An internal condensate pump means it doesn't have to sit next to a floor drain, and the onboard humidistat lets it run on its own target setting without a separate controller. MERV 11 filtration and a 25 ft cord round out a unit meant to be moved and set up wherever it's needed that week.

Key Features & Benefits

• 176 pints/day capacity — on 120V power at 10 amps, sized for a standard circuit without requiring dedicated electrical service.
• Internal condensate pump — moves collected water without gravity drainage, so the unit doesn't need to sit next to a floor drain.
• Onboard humidistat — runs the unit to a set target humidity without needing a separate wall controller wired in.
• 12-inch recessed wheels — sized for real mobility between rooms or drying chambers, not just cosmetic casters.
• MERV 11 filtration — captures common airborne particles at a mid-range rating suited to a portable unit's airflow design.

Who Should Use This

The CDG 174 fits growers and facility operators who need a genuinely portable dehumidifier moved between rooms, drying chambers, or seasonal spaces, rather than a fixed overhead installation, and who want internal condensate handling instead of running a hose to a floor drain.

About Quest

Quest is a Therma-Stor brand. It focuses on commercial dehumidification. Therma-Stor is headquartered in Madison, Wisconsin. It's the same parent company behind the Anden brand. Therma-Stor has built dehumidifiers and environmental-control equipment for decades. Quest specifically targets commercial and industrial moisture control. Think indoor cultivation, food production, and commercial buildings. That's a different focus than residential basement units. Many overhead models use the company's patented M-CoRR design. M-CoRR stands for multi-coil refrigeration. The design recycles heat pulled from the air. That happens during dehumidification itself. It improves energy efficiency as a result. It also cuts heat sent back into the room.

Frequently Asked Questions

Does the CDG 174 need to be near a floor drain?

No, it has an internal condensate pump that moves collected water without relying on gravity, so it doesn't have to sit next to a floor drain. Check the pump's rated lift and hose run distance against your specific installation before assuming it will reach a drain point across a room.

What electrical service does this unit need?

It runs on standard 120V power at 10 amps, which fits a typical circuit without requiring dedicated electrical work. Confirm your circuit's total load if you're running this alongside other equipment on the same breaker.

How easily can this unit move between rooms versus staying fixed in one place?

It's built as a portable unit, with 12-inch recessed wheels specifically sized for rolling it between rooms or drying chambers rather than leaving it fixed in one location. That mobility is a core part of its design, not an afterthought.

Does it require a separate humidity controller?

No, it has an onboard humidistat, so it can run to a set target humidity on its own without a separate wall-mounted controller. A separate controller like the Quest DEH 3000 is only needed if you want centralized control across multiple units.