Refrigerant dehumidifiers work by drawing warm, moist air into the unit, via a fan. Dehumidifiers can usually be grouped into one of four types: Heat Pump Dehumidifier – These dehumidifiers need a fan, heat pump, and heat exchange coils to remove moisture from the air. Guidelines suggest that slightly damp rooms, with a 50-60% humidity level, require a 20-pint dehumidifier for a 300-square-foot space. Dehumidifiers are important in the fight against overly humid air and poor indoor air quality. The moisture collects in a container/tank as liquid water, which you should empty often. How Does A Dehumidifier Work? Read on to learn the top three ways a dehumidifier may improve your home and health …. Here are the three main types of dehumidifiers : Refrigerant dehumidifiers: This type of dehumidifier works very similarly to the way a refrigerator operates and uses metal plates or coils along with fans to move air through the unit. Honeywell’s TrueDRY line of dehumidifiers are all Energy Star rated and come backed by a five-year warranty. However, before moving into that, let’s look into the sole purpose of a dehumidifier. Each works to remove water from the air a little differently: Not sure how a dehumidifier could benefit your life? How to Set a Dehumidifier. Refrigerant: Most dehumidifiers use a refrigerant (i.e., Freon) to pull moisture out of the air. As with any appliance, the key is to look for an Energy Star-rated, high-efficiency unit that is sized properly for the space and conditions. Fan Compressor – The fan compressor compresses and expands the refrigerant to cool the dehumidifier… How does a dehumidifier work? Dehumidifier capacity is measured in pints of water removed per 24 hours. Mold and mildew, musty odors, condensation, warped wooden surfaces, and cracked, peeling, or blistering paint can all result from elevated humidity levels inside your home. By Donna Boyle Schwartz. Desiccant dehumidifiers work by using a ‘desiccant’ chemical to ‘absorb’ moisture from the air. These coils condense the air to remove excess water content. Generally, desiccant dehumidifiers work via either absorbing the water, where it soaks right into a desiccant material or by adsorption, where the … Expert advice from Bob Vila, the most trusted name in home improvement, home remodeling, home repair, and DIY. How does it do that? It's fairly simple, but very effective: A fan collects air from the surrounding area and pulls it into the dehumidifier. With these factors in mind, let’s take a deeper dive into how dehumidifiers work, how to pick one for your home, and some of the benefits they bring. A dehumidifier is a good way to cut down on excessively damp air. Here's how to make certain you're using the device properly. Dehumidifiers regulate humidity by drawing moisture from the air. A fan draws warm, humid air over a cold coil, which condenses the moisture into liquid; the water is removed via a drain pipe. As the air passes through, it comes into contact with the dehumidifier's cooled coils. You can use a dehumidifier when you notice signs of damp, such as condensation on your windows. “It can promote mold growth and the potential for respiratory ailments, and make your air conditioner work harder by having to cool damp, heavier air.” By removing excess moisture from the air, a dehumidifier can level the playing field and improve the overall comfort and health of your home. The unit can draw the moisture from your indoor air in two ways. Copyright © 2020 Acton Media Inc. All rights reserved. Equipped with an evaporator coil, compressor, fan, and humidistat, dehumidifiers wring moisture from the air. Using a fan, air gets sent past the heat exchange coils, which are extremely cold. But taking these simple steps could help nip it in the bud before it gets to the dehumidifier stage. The unit then releases recycled, less-humid air back into the room with the help of a second fan. A fan draws warm, humid air over a cold coil, which condenses the moisture into liquid; the water is removed via a drain pipe. Most of these repairs don’t require a lot of mechanical skill, … Dehumidifiers work best when there is enough airflow around the unit. By reducing that moisture, dehumidifiers can ensure a continuous flow of cool, dry air. The dehumidifier takes in warm air through a fan that sucks air into metal coils that are cooled down by a refrigerant that uses chemicals to reduce the temperature of the coils. Moisture then condenses and collects. Learn More About Aire Serv Indoor Air Quality Services, Condensation on the inside of your window panes, Improves Your Health and Protects Your Home. This post has been brought to you by SupplyHouse.com. How does a dehumidifier work? Indeed, rising energy costs are one of the primary reasons for dehumidifiers’ growth in popularity: To conserve energy, today’s homes are built more tightly, but with less air exchange comes the potential for moisture buildup. When a room is less humid, it’s more comfortable and pleasant and safe to spend time in. Click here for our precautionary measures. Its facts and opinions are those of BobVila.com. The desiccant moisture absorber is held on a slowly rotating wheel. Experts share how to buy the best dehumidifiers of 2020. Honeywell's TrueDRY DR120 Whole-House Dehumidifier. And, when the air is damp and sticky indoors, you’re not the only one who senses it—so does your air conditioner. A dehumidifier is an electrical appliance which reduces and maintains the level of humidity in the air, usually for health or comfort reasons, or to eliminate musty odor and to prevent the growth of mildew by extracting water from the air. Shop top brands like Frigidaire, Danby, and more that are available on Amazon, Walmart and Home Depot. It attracts all the air into the machine. The best size of dehumidifier to buy depends on how big the room is that you want to dehumidify. A higher-capacity dehumidifier won't have to work as hard to keep a space dry as one that's exactly the recommended capacity for the room. All dehumidifiers work to take water from the air, but there are several types that operate in different ways. To understand how does a dehumidifier work, however, we have to look into the device itself. If the room you’re trying to dehumidify has a humidity level between 80-100%, then a 25-30-pint dehumidifier is recommended for a 300-square-foot space, while a 60-pint dehumidifier is recommended for a 1,200-square-foot space with the same humidity level. You agree that BobVila.com may process your data in the manner described by our Privacy Policy. Dehumidifiers come in a variety of models and sizes, ranging from large, whole-house models to smaller, portable units designed for individual rooms and problem areas, such as attics, basements, and crawl spaces. How does a dehumidifier work? But one big question is how does a whole house dehumidifier work to moderate the overall humidity inside your home. Hot and muggy summer weather outside can mean excess moisture inside. Believe it or not, where you place your dehumidifier … For more on the Honeywell TrueDRY Dehumidification system, including a video demo, visit SupplyHouse.com. If it gets cool outdoors and you keep the dehumidifier in the basement, the coils will freeze up if the dehumidifier is switched on. A fan draws the wet air into the dehumidifier where it is passed over the desiccant. How Does A Dehumidifier Work? A comfortable moisture level during the summer is 35 to 40 percent. Your health and safety are our highest priority during this time. A dehumidifier works by drawing warm air currents into its coils via a fan. The dry air then passes over a warm coil and is added back into the room. Disclosure: BobVila.com participates in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for publishers to earn fees by linking to Amazon.com and affiliated sites. Learn how to keep silverfish at bay with tips from our friends at Rainbow International. A dehumidifier does what the word says: it takes the humidity out of a room. The dehumidifier’s heat recovery system then passes warmer, dryer air back into the room. Because a dehumidifier uses significantly less energy than an air conditioner, installing either a whole-house system or a smaller unit can cut cooling costs; not only does the air conditioner not have to work as hard, but it also may run less often or at a higher temperature. A dehumidifier is an electrical appliance that reduces and maintains the optimal level of humidity in the air. Where there’s moisture, there are likely bugs. However, if you are using a larger dehumidifier with a manual pump, it will be a challenge emptying the drip pan every now and then, why not place it near the sink or toilet so it won’t be a hassle carrying around. How Dehumidifiers Work. Choose the right size dehumidifier for your room’s square footage. Wipe down wet walls and floors in your bathroom after use. Some common dehumidifier problems include excessive noise, leaking water or a fan that isn’t working. According to the U.S. Energy Star program, a homeowner can save up to 6 percent on cooling costs for every degree the thermostat is turned up. A fan pulls the moist air into the dehumidifier and through cooling coils, which use condensation to draw dampness from the air. Helps with allergies. Now, after taking the moisture inside the machine, it will pass through the pipe. Measure the square footage of the main room where you’ll use the dehumidifier. They can be centrally ducted for whole-house dehumidification or unducted for moisture control in attics or smaller crawl spaces. Standard dehumidifiers operate by drawing in moist air and passing it through a series of cooling coils, which are filled with a refrigerant. The workings of a dehumidifier are similar to that of an air conditioner, but where the air in a conditioner is cooled, down, the air in a humidifier is heated. Not only do they reduce excess moisture in the air, but they also they work to prevent mold and mildew. From there, moisture condenses out and collects in a removable basin while a fan blows the newly dried air out of the unit. Rainbow International is a fellow member of the Neighborly® family of trusted home service brands. There are three types available to homeowners. If you do choose a model with a motorized pump, connect a water hose to the dehumidifier's drain pump hole. We'll look at each of these in turn. A dehumidifier uses a fan to move air in the room over refrigerated coils, removing moisture and collecting it in a tank. In contrast, a 50-pint dehumidifier is recommended for a 1,200-square-foot space with the same humidity level. DO NOT Put Your Dehumidifier Against Walls. In technical terms, the dehumidifier uses a refrigeration-based and heater-based system to reduce relative air humidity from 50-100% to 30-50%. They also carry a MERV (Minimum Efficiency Reporting Value) rating of 11. (MERV ratings, which measure filter performance, range from 1 to 16; the higher the number, the better the air filtration.). Dehumidifiers remove water vapor from the air to keep a room dry. Donna Boyle Schwartz, 11 Decorative Pillow Trends to Expect in 2021, Solved! The moist air then crosses over refrigerant-cooled coils. Almost all the dehumidifiers in … Watch this short unboxing video showing how to get your De’Longhi dehumidifier set up correctly creating the ultimate comfort in your home. The Recommended Humidity Level at Home, Radiant Surfaces: Heat Where You Least Expect It, 20 Bad Habits That Could Burn Down Your House. Not to worry, we will provide you with great insight into the operation process of the whole house unit. Dehumidifiers work in one of two ways—by refrigeration (cooling air to remove moisture using similar technology to a refrigerator or air conditioner) or by absorption/adsorption (where moisture is absorbed into or adsorbed onto a drying material and then removed). Desiccants work well in both warm and cooler environments, so are the better choice if you want a dehumidifier for a garage, conservatory, caravan or boat, or if you want one that you can use in a range of conditions. Dehumidifiers are controlled by an instrument called a dehumidistat, which turns the unit on and off depending on the amount of moisture detected in the air. The Dehumidifier Work on the Following Basis: At one side of the machine, it sucks all the moisture from the room. “Excess moisture in your home can cause major issues over time,” points out Daniel O’Brian, a technical expert at online retailer SupplyHouse.com. Our local service professionals are ready to help you choose the unit that’s right for you. If you notice any of the following in your home, we recommend purchasing and using a dehumidifier(s): The two most significant factors that determine the size of the dehumidifier you'll need are 1) the size of the space you're looking to dehumidify and 2) the humidity level within that space. In simplest terms, a dehumidifier is an HVAC device that removes moisture from indoor air. The appropriate capacity for a dehumidification unit or system is determined by the size of the space and its conditions. Use an extractor fan or open a window when taking a bath or shower. Many allergens and allergy triggers, such as dust mites, mold, and mildew, … They use four basic parts to pull moisture out of the air. Call Aire Serv® today at (855) 679-0011 or request an appointment online to learn more about your dehumidifier options. The sucking of air is done with the help of a fan. [1] X Research source For example, a closed, damp room, such as a basement, will require a bigger capacity unit than a large, open room with good air flow. Match that to the size of dehumidifier. © 2020 Dwyer Franchising, LLC All rights reserved. Refrigerants do have their advantages though. It can be used for household, commercial, or industrial applications. A dehumidifier removes excess moisture from your premises by taking in air the moisture-laden air and giving out dry air.