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Choosing a Dehumidifier - What to Ask and Why
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Monday, July 10, 2017

Living in our beautiful Ohio Valley has many benefits.  Humidity that averages 70% -- well over the recommended and comfortable 50% -- is NOT one of them.  Not only is it uncomfortable, but high moisture breeds mold, mildew and bacteria that can lead to allergies, asthma, and respiratory problems as well as stain ceilings and walls, damage furniture and much more.  The best way to address the problem is to invest in a dehumidifier.  But, how do you know what is right for you? 

How high are your humidity levels? - Relative humidity (RH) measure the level of water vapor in the air.  If the RH is below 30% the air feels dry.  When it gets above 50% it feels muggy and uncomfortable and when it is at 100% the air can’t hold any more moisture indicating that it’s raining or foggy. Optimal RH is around 35 to 40%.  A hygrometer can be used to measure the humidity in your home. 

How large is the space that you need to dehumidify? - Dehumidifiers come in diverse sizes based on the size of the area and the moisture to be extracted over a 24-hour period. The following chart from the Association of Home Appliance Manufacturers (AHAM) shows the recommended number of pints per sq. ft. relative to how damp the area is:

dehumidifier, hvac, air quality

What features do you need? – Dehumidifiers come with many features and options such as built-in humidistats and auto shut-off.  What you need depends on where and how you will be using the unit.

Where will you use the dehumidifier? – If you’ll need to move the unit around you’ll want to consider smaller, lightweight models with a handle and wheels.  If you have a fixed space, there are larger units that can be permanently attached to the floor or wall.

What is your budget? – Prices will vary with sizes and options so you should have a budget in place when you start.  While you don’t want to splurge on unnecessary options, you also don’t want to buy a unit that is too small just to save a few dollars as it will either run continuously or be less effective resulting in higher costs on the long run. 

There is a lot to be considered when purchasing the right dehumidifier for your home. If you’re not sure what you really need, Crane Heating and Air is here to help in decision-making process.  Contact us today for all your HVAC and air quality needs. You can count on Crane Heating and Air Conditioning for the Highest Degree of Service.





 

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