How does a Dehumidifier Work? |
Posted: November 7, 2019 |
Dehumidifiers work by sucking moist air in and depositing it on a series of cooled coils, where the moisture condenses and drips onto a separate tube or bucket. The dry air is then pushed out the other end and mixes with the moist air outside, making it slightly drier. As the process is repeated, the air becomes drier and drier. All dehumidifiers come with sensors that turn the machine off when the water receptacle is full, or when the desired humidity level (usually between 30 and 50 percent) is reached. Other dehumidifiers are electronic and work by creating a cool surface for water vapor to condense. These are cheaper and make less noise, but are usually found only in smaller units. Some air conditioners can also double as dehumidifiers, as the cooling processes are similar. Tips for Choosing a Good dehumidifierPortable dehumidifiers come in different sizes and capacities, which determine their coverage. The smallest units have a 25 pint capacity (meaning they can remove 25 pints of water from the air in 24 hours), and work for rooms of 400 square feet or less. 50-pint units are applicable for up to 1,000 square feet, and 70-pint units, generally the largest available for household use, work for up to 1,300 square feet or more. To ensure what dehumidifier's size works best for your room, you should do some test including mold test by using the best mold test kits which can be found here. These rules assume a standard room height of eight feet and an indoor location. Coastal areas tend to be more humid and require about 50% more power. Coverage will also be reduced proportionally for higher ceilings, so a ten-foot-high ceiling will require 25% more power than an eight-foot-high one; a 12-foot-high ceiling will need 50% more; and so on. Extra features Traditional dehumidifiers come with adjustable dials that allow you to increase or decrease the power, but not to set the exact humidity level. The Frigidaire FAD504TDD (50 pint) and Frigidaire FAD704TDP (70 pint) models have digital humidistats (moisture level indicators) that let you do that. This is particularly useful if you live in an area that’s prone to dust mites or other pests. In very humid areas, buckets that can connect to a hose for continuous drainage can come in handy. Otherwise, you may find yourself emptying the bucket every few hours. If you live in a cold climate, an automatic defrost feature may come in handy—it uses a sensor to shut off the machine when frost starts to accumulate. If it’s for a second home, or one that you don’t stay in regularly, look for an automatic restart feature so it can keep going after a power outage. No matter what your particular needs, the Frigidaire dehumidifier can remove the moisture from your living space.
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