
Watch the mini-documentary and learn how to protect your home, RV, or Boat from damaging excess moisture.
Winter Humidity:
A Hidden Problem in Your Home
Winter can be a cozy time of year, but it also brings one of the most damaging factors for your home and possessions: winter humidity.
As the temperature drops, the air inside our homes can become damp and stale, leading to a host of problems.
While you might expect to see higher humidity in the summer, winter humidity can actually be just as problematic – if not more.
Where Winter Humidity is Most Prevalent
Winter humidity is most prevalent in regions of the U.S. where temperatures drop, but the air remains damp, leading to condensation inside buildings.

The Pacific Northwest
Areas like Washington, Oregon, and Northern California are known for their cold, damp winters. High humidity levels combined with low temperatures make these regions prone to indoor condensation and moisture issues.

Northeast and Great Lakes
States such as New York, Michigan, and Pennsylvania experience cold, snowy winters with a significant amount of moisture in the air. Humidity levels can remain high despite the cold, particularly in basements and crawl spaces.

Mid-Atlantic Region
Areas like Maryland, Delaware, and New Jersey can have both cold and humid winters, leading to similar moisture accumulation in homes and buildings.

Upper Midwest
Places like Minnesota and Wisconsin see freezing temperatures combined with moisture-laden air that causes condensation inside homes and other buildings.

Mountain Regions
High-altitude areas like Colorado and parts of Utah, where temperatures can fall below freezing, also see moisture buildup in the air, especially in homes with insufficient ventilation.
Winter humidity is often most severe in areas where temperatures fluctuate or where indoor heating systems dry out the air, causing condensation in cooler spaces. Basements, crawl spaces, garages, attics, and boats are the prime locations for winter humidity to flourish. These spaces are often colder and less ventilated, allowing moisture to accumulate and lead to unwanted consequences.
How Winter Humidity Damages Your Home
The damage from excess moisture during the winter months can be significant. Humidity can cause:
💧 Water damage to walls and ceilings: Persistent moisture can lead to peeling paint and damage to structural materials.
🛠️ Rusting of metal surfaces: Metal objects in the home, such as tools, appliances, and even your car, can corrode if exposed to excess moisture.
🪑 Warped or damaged wood: Wooden furniture, flooring, and structural beams can warp or crack when exposed to high moisture levels.
👃 Damp unpleasant odors: Damp conditions in winter can create the perfect breeding ground for moisture on fabrics and furniture, causing unpleasant smells.
📹 Damage to electronics and valuables: Humidity can cause condensation inside your devices, potentially leading to failure of expensive equipment, important documents, or valuable possessions.
Why Traditional Dehumidifiers Struggle in Winter Conditions

Many traditional dehumidifiers simply aren’t equipped to deal with the challenges of winter humidity. As the temperature drops below 60°F, these models start to lose their effectiveness. Here’s why:
- Compressor-based dehumidifiers rely on a cooling process that becomes inefficient in lower temperatures. At temperatures below 60°F, their cooling coils freeze, rendering them nearly useless.
- Peltier (electric) dehumidifiers are designed to work in small, warm spaces, but they too fail to perform effectively when temperatures drop. The internal components just aren’t designed to handle colder air.
The Solution: Eva-Dry EDV-4000 Rotary Desiccant Dehumidifier



The Eva-Dry EDV-4000 Rotary Desiccant Dehumidifier is built to handle winter humidity—even in the coldest environments. Unlike compressor or Peltier-based units, the EDV-4000 is a Rotary Desiccant dehumidifier that operates efficiently in a much wider temperature range, from 34°F to 104°F, making it the ideal solution for winter humidity.
Key Features and Advantages of the Eva-Dry EDV-4000
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Wide Operating Temperature Range: Unlike traditional dehumidifiers that lose efficiency below 60°F, the EDV-4000 works effectively in temperatures as low as 34°F. Whether you’re dealing with cold, damp basements, boat cabins, or RVs, this dehumidifier performs where others fail.
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High Capacity for Moisture Removal: The EDV-4000 is designed to remove moisture quickly and efficiently, helping to eliminate excess humidity from your space. It has a high capacity that’s perfect for areas up to 4,000 cubic feet(444 sq. ft.).
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Eco-friendly and Energy-efficient: The EDV-4000 uses no refrigerants, making it more environmentally friendly and energy-efficient than traditional compressor-based dehumidifiers. It operates quietly with a low energy draw, saving you money on utility bills.
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Continuous Drain Hose for Hands-Free Operation: The EDV-4000 comes equipped with a continuous drain hose, allowing for hands-free operation. Simply connect the hose, and water will drain automatically, making it the perfect tool for winterizing boats and RVs.
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Quiet Operation: Operating at just 32 dBA in quiet mode, the EDV-4000 is much quieter than traditional compressor-based dehumidifiers that can reach 42 dBA, allowing for a peaceful environment without disturbing noise.
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Portable and Compact: At just 13.2 pounds, the EDV-4000 is lightweight and easy to move. Whether you need to place it in your basement, garage, or RV, this dehumidifier can go wherever you need it.
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Advanced Humidity Control: With adjustable fan speeds and modes, the EDV-4000 allows you to set the ideal humidity level for your space. Whether you want to dry clothes or simply maintain a comfortable humidity level, this dehumidifier has you covered.


Stop Winter Humidity in Its Tracks
If you’re tired of dealing with the damage caused by winter humidity, it’s time to make the switch to the Eva-Dry EDV-4000. With its advanced technology and efficient performance in cold weather, it’s the perfect solution for keeping your home, RV, or boat dry and comfortable, no matter the season.



Get Yours Today
Don’t wait for winter humidity to take a toll on your home and possessions. Invest in the Eva-Dry EDV-4000 today, and enjoy free shipping directly from Eva-Dry. Take control of your environment and protect your belongings with the best in cold-weather dehumidification.