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The Benefits of Humidity Control in Marine Applications

Eliminate fogging windshields, provide indoor air quality, and avoid reoccurring mold remediation with the industry’s leading line of high-efficiency, large-capacity Quest Dehumidifiers.

Quest offers the most complete line of rugged, high performing, climate control equipment. All Quest products are assembled in the US and designed to deliver the ultimate in performance and energy efficiency. Quest has the perfect solution for the harshest of conditions.

Let our moisture professionals visit you for a FREE humidity sizing evaluation of your vessel. We will recommend affordable solutions to solve your moisture issues, keep your windshields clear and your boat’s occupants comfortable.

Why Humidity Control with Quest Dehumidifiers is Critical in Boats

Preventing your windshields from fogging is vital to the safety of the boat’s navigation as well as its occupants.

Humidity Control will prevent condensation, mold, and odor in the galley, sleeping quarters and throughout the inside of the boat.

Avoid the expense of mold remediation, mechanical repairs and replacing appliances, by preventing mold growth, rust and corrosion with Quest.

Bringing in fresh filtered, dry air will greatly improve indoor air quality. The Quest Dry 155 dehumidifier is designed with a 6-inch fresh air inlet duct, which will provide 100 CFM positive pressurization of each deck and force the harmful VOCs out of the boat.

For more information on how Quest can solve your humidity issues, please READ MORE

Why choose Quest Dehumidifiers:


Technical Support

Our expert team will visit your boat at your convenience for a FREE humidity sizing evaluation. We also provide FREE data logging on at least one vessel of your fleet. After Quest equipment is installed in your vessel, our team is available to help with any technical question or training request to ensure ongoing optimum equipment operation.

Warranty & Reliability

We stand behind our products 100%, which is why we offer one of the best 5 year warranties in the industry. Our customers can trust their assets are protected.

Product Availability

We are experienced in quick response manufacturing and build-to-stock all products in Madison, WI to ensure customers receive product on time.

Industry Experience

Quest, manufactured in Madison, Wi, is a division of Therma-Stor, LLC, which was established in 1977. Our experience in developing climate control solutions that work in various applications and across industries demonstrates that our longevity and expertise in dehumidification and humidity control is second to none.

Environment & Sustainability

ENERGY STAR® qualified equipment is just one of the ways we can help you adopt environmentally friendly practices to save money on operating costs. The ENERGY STAR® program was initiated in 1993 by the US Environmental Protection Agency as a way to certify products with specific energy saving attributes. The Quest Dry 105 and 155 are the two most energy-efficient units on the market today.

Marine Team:

Keith Hosli
Quest Commercial Sales Manager, Marine
(608) 209-7616

Cliff McInnis
Quest Commercial Sales Manager, Marine
(608) 334-4725

Walt Waetjen
Quest Product Manager, Commercial & Government Markets
(608) 720-3056

Purchase Options:
Quest products can be purchased by calling 866-933-7484 or direct by calling one of our team members below.

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