Quest 155 Overhead Dehumidifier with M-CoRR Technology — 155 Pints/Day 110-120VAC

Quest 155 Overhead Dehumidifier with M-CoRR Technology - 155 Pints/Day 110-120VAC

The Quest 155 removes up to 155 pints of moisture per day at 500 CFM on 110-120VAC power, rated at 8.5 pints per kilowatt-hour of efficiency thanks to its patented M-CoRR multi-coil refrigeration design, which recycles heat pulled from the air during dehumidification to significantly cut operating cost per pint removed.

It runs onboard digital controls with auto-restart after a power interruption, uses MERV 13 filtration, and includes integrated hanging points for overhead installation. The current model is 20% smaller than its predecessor, backed by a 5-year warranty, and is assembled in Madison, Wisconsin.

Key Features & Benefits

• 155 pints/day at 8.5 pints/kWh — delivers this capacity at 500 CFM on 110-120VAC power, with efficiency measured directly in pints removed per kilowatt-hour.
• Patented M-CoRR multi-coil refrigeration — recycles heat pulled from the air during dehumidification, which is the mechanism behind this unit's rated efficiency.
• Onboard digital controls with auto-restart — resumes operation automatically after a power interruption without needing a manual restart.
• Integrated hanging points and MERV 13 filtration — built-in mounting points simplify overhead installation, while the MERV 13 filter captures up to 95% of airborne particles.
• 20% smaller than its predecessor, 5-year warranty — a reduced footprint compared to the prior generation, backed by a 5-year manufacturer warranty and assembled in Madison, Wisconsin.

Who Should Use This

The Quest 155 suits commercial growers who want a documented efficiency figure (8.5 pints/kWh) to plan operating costs against, along with auto-restart reliability for facilities where power interruptions are a real operational risk.

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

What does the 8.5 pints/kWh figure actually mean?

It's a direct measure of how many pints of moisture the unit removes for every kilowatt-hour of electricity it consumes, which lets a facility calculate operating cost per pint removed rather than relying on a general efficiency claim. That figure comes from the M-CoRR multi-coil refrigeration design recycling heat during the dehumidification cycle.

What happens if power is interrupted while this unit is running?

The onboard digital controls include auto-restart, so the unit resumes operation on its own once power is restored rather than requiring someone to manually reset it. This matters for unattended grow spaces where a power blip could otherwise leave humidity unmanaged for hours.

How does this unit's size compare to earlier Quest 155 models?

The current model is 20% smaller than its predecessor while delivering the same 155 pints/day capacity, which matters for facilities with tighter ceiling clearance or mounting space. Confirm current dimensions against your installation location before ordering.

Where is this unit manufactured, and what warranty does it carry?

It's assembled in Madison, Wisconsin, and backed by a 5-year manufacturer warranty. Keep your proof of purchase and registration documentation in case warranty service is needed during that period.