Dehumidifier Buying Guide

Dehumidifier Buying Guide

Humidity, the amount of moisture in the air around you, plays an extremely important role in controlling the number of airborne allergens in your home. The two most common indoor allergens, dust mites and mold, thrive in warm, humid conditions.  Allergens, such as mold and fungus are present  though dormant in nearly all materials, but in the presence of a food source and moisture, they can rapidly proliferate. By keeping your relative humidity in the air below 50 percent, you can control the dust mite and mold spore populations in your home. The easiest and simplest way to do this and to increase the overall comfort level in your home  is to control humidity levels with a dehumidifier. Dehumidifiers remove water vapor from the air and lower the relative humidity in your home.

How Dehumidifiers Work

How a Dehumidifier WorksDehumidifiers regulate humidity by removing moisture from the air and creating living conditions that are inhospitable to dust mites, mold and other allergenic organisms. Room dehumidifiers, like a Danby or an Alen, work much like air conditioners--warmer, moist air enters the dehumidifier and then crosses refrigerant cooled coils, causing the moisture in the air to condense on coils within the machine. The moisture then collects in a drip pan or bucket for disposal while the air is slightly reheated before being discharged. The reheat process is done by capturing and using heat generated from the energy spent to cool the air. By being slightly warmed, the air exiting the dehumidifier is dry and warm - which means it will attract moisture like a magnet and maximize the dehumidifier's efficiency. Of our residential units, our line of Aprilaire dehumidifiers are the largest units we offer. The two larger models are the only two whole home dehumidifiers we carry while the smaller Aprilaire 1710A is ideal for any crawlspace, basement are large space with excess moisture. Commercial and industrial units, like our Ebac dehumidifiers and Dri-Eaz dehumidifiers, work exactly the same way, but they have features like internal pumps and powerful fans that make them ideal for cleaning, water damage, and restoration projects. Another key feature to the Ebac line is that most are constructed of steel. This makes them heavier, but also itself to increased durability and longevity. Dri-Eaz dehumidifiers are constructed of a rugged plastic that is extremely resistant to dings, dents and cracking.

Mold Control If you are allergic to dust mites or mold--or if you smell a musty, mildew-like odor in your home, or see condensation on windows, walls, or floors--then you should seriously consider using a dehumidifier to improve the indoor air quality. Some allergens, such as mold, can turn into a serious and difficult problem to solve if allowed to grow unchecked in your home. In addition to health concerns, excess moisture speeds the natural process of oxidation. From metals to wood, every material found on this planet is subject to the process of decay and deterioration through oxidation. While researching a dehumidifier, there are some important factors to keep in mind before you make your purchase.

Moisture Removal Rate

How much water does the dehumidifier remove from the air in a given amount of time? Some Ebac industrial dehumidifiers can remove a whopping 50 gallons of water per day!  One of our Dri-Eaz commercial models can remove 140 pints of water in a day at 80 degrees and 60% relative humidity.  Because your particular situation may not call for a unit this powerful, a standard room dehumidifier is the most common type of dehumidifier sold today.  Depending on the specific models, Danby dehumidifiers, Soleus dehumidifiers, Alen dehumidifiers, and Haier dehumidifiers are all room-sized dehumidifiers that can remove between 30 and 70 pints of moisture per day.

Temperature Range

If your dehumidifier is for a basement, garage, crawlspace, or any other area that might get extremely cold during the winter, you will want to make sure that it can operate at low temperatures.  Ebac dehumidifiers are industrial strength and have different temperature ranges depending on the model, but they all work well in low temperatures--most, like the Ebac CD35 Dehumidifier, work all the way down to 33°F! The Ebac Desiccant Dehumidifiers work at even lower temperatures. The Dri-Eaz line of low grade refrigerant (LGR) dehumidifiers are engineered to work in temperatures from 33°F to 100°F.   Danby dehumidifiers work in temperatures down to 44°F, while Haier dehumidifiers have a temperature range down to 41°F. Soleus dehumidifiers will function in temperatures as low as 40°F. On the high end of this scale are the Dri-Eaz 2800i and 3500i dehumidifiers, which can operate in temperatures ranging from 33°F to temperatures as high as 125°F.

Choose a dehumidifier keeping in mind not only the temperature range, but also the overall climate of the region in which you live. For instance, in the Northeast a dehumidifier would be particularly useful since humidity remains high from May to October, while the temperature may remain mild. An air conditioner, which also removes some moisture in the air, would not run enough (due to the lower temperatures) to adequately control the moisture levels in your home. In this case, a dehumidifier would be an excellent fit.

Humidistat

Similar to a thermostat, a humidistat indicates the relative humidity and allows you to adjust it to the desired level. Standard and industrial dehumidifiers generally come with built-in, adjustable humidistat controls, while the smaller, portable dehumidifiers often times do not. If you need to monitor the relative humidity in your home, we offer an affordable, high-quality humidity gauge, the Acu-Rite Digital Humidity Gauge.


Dehumidifier Energy Usage

Energy Usage

Like all appliances, different dehumidifiers use different amounts of energy for operation. Typical dehumidifiers can use anywhere from 50 to 800 watts. (For comparison sake, a typical lamp uses about 60 watts, while a typical computer uses about 365 watts). Danby, Alen, Soleus, and Haier dehumidifiers are all energy-star compliant for low energy costs.

Dehumidifier Noise

Noise Level

All the room dehumidifiers we offer are relatively quiet. For those who have owned older models of dehumidifiers, you will find that these new models are much quieter than their predecessors. Larger dehumidifiers (whole house or for commercial use) like Ebac dehumidifiers are louder than room size units, but they are generally installed near or around your HVAC unit, on jobsites, or outdoors. So if the noise of your HVAC running is not an issue, a Dri-Eaz dehumidifier or an Ebac dehumidifier will likely not cause you any problems.



Ease of Use

Ease of Use

Most modern dehumidifiers were designed to be user friendly. For example, Danby dehumidifiers feature electronic controls, a remote control, fully adjustable humidity settings, an auto de-icer, an auto-restart feature, a removable and easy-to-clean air filter, and a direct drain option for continuous operation. Look for these options that will make your life easier:

  • Water level control to prevent overflow
  • Full Tank Light that lets you know when it is time to empty the tank
  • Drainage/Porting option so that you do not have to worry about repeatedly emptying the tank
  • Anti-Frost Sensor (or Auto De-icer that keeps the dehumidifier from freezing up)
  • Movability--most of our dehumidifiers come with wheels or casters for easy transport and nearly all come with built in handles.

Manufacturer's Reputation

Manufacturer's Reputation

A manufacturer's reputation and the experiences of past customers deserve consideration in your decision. Certain manufacturers and products are highly respected in the industry for a reason--and the same goes for products which have garnered less respect. So whether it is a review or award issued by a nationally recognized magazine or simply an excellent review from someone just like you, it pays to do your research before buying.


Dehumidifiers Warranty

Warranty

A one-year warranty is the industry standard. A two-year warranty is even better! Take into account what the warranty covers--motor, fan, electrical components? Also, find out if certain customer actions will void the warranty. Warranties are your insurance policy against defect and malfunction, so it is prudent to take these into account when choosing a dehumidifier for your home.

Share
9/8/12 Could not wait to try Safeguard Window Filters. I am using them, am very pleased and have high hopes that my solution to open windows is at hand!
More Testimonials