If constantly emptying your AC unit's water-catcher tray is driving you nuts, you need a fully self evaporating portable air conditioner to keep you cool and comfortable during hot weather.
These coolers do away with the need for drain hoses or water catching trays... and that means no mess, no hassle!
That's because this ultra-cool type of AC unit efficiently re-evaporates all the moisture it condenses from the air. And expels it straight out of the vent hose to the outside.
When you're considering replacing your old AC unit with a new one, this is a feature you will be greatly appreciative of after using it for even just a short time!
So let's look at what this type of cooler actually is and how it works.
Why Does Water Collect in Traditional Portable AC Units?
If you didn't already know, portable ACs remove warm, moisture-laden air from the space being cooled. As it cools the air, the excess moisture is removed from the air too.
With standard and older units, that excess moisture is condensed inside the unit and collected in an internal reservoir that needed to be periodically drained. That's to prevent it overflowing and making a mess, or causing the device to automatically shut off until it was emptied.
It's a job that many users did not like doing, especially those living in humid areas. That's where the high levels of moisture in the air would mean much more would condense and collect inside the unit, increasing the frequency of needing to drain the unit or empty the pan.
Not only that, but the whole unit needs to be lifted off the ground to allow the water to drain out. As they're quite heavy, that's an unwelcome job for anyone and a tough one for an older person.
How Does a Self Evaporating Portable Air Conditioner Work?
The good news is that some of the newer select brands are using updated technology to get around the problem. They remove this moisture automatically and expel it out through the vent hose.
So there's no need for manual draining or for those living in high humidity areas, installing a hose for continuous draining.
Instead of allowing the condensed moisture to collect in a pan or drain tube, the water is re-evaporated then expelled.
Some models use an internal misting system that sprays the excess moisture out through the hot-air exhaust hose to the outside of the building. Many models recycle the condensing moisture to assist with the cooling process and save energy before expelling it.
These units are known as fully self-evaporating portable air conditioners (also: fully self-evaporative portable ACs) and they do exactly what their name suggests.
The Benefits of Self-Evaporative AC Units
Owners of fully self-evaporating units prefer them over than the traditional partially self-evaporating models. That's because they require less maintenance while offering cost-effective, efficient and powerful cooling ...and no more hassle with water leaks!
The major benefits are:
- Hassle-free, worry-free cooling operation
- No messy drain or water pan to empty. Ever
- No lifting the unit to access a fiddly drain hose
- No suffering an auto shut-off of the cooler because of a full drain
- Peace of mind that excess moisture is all being vented to the outside
- Just turn it on and enjoy the cool, comfortable atmosphere it creates
I believe these amazing coolers are certainly worth considering as replacements for older AC models, or if you've decided to buy a new portable AC as a first choice.
I can recommend four of the best portable AC brands with self-evaporating technology.
These are affordable and easily available to buy online from Amazon. See below:
Note: As an Amazon Associate I earn from qualifying purchases.
The powerful Whynter 14000 BTU Dual Hose Portable Air Conditioner with 3M Antimicrobial Filter is a really popular cooler as well as being one of the best around. Owners simply love it!
There's a real buzz about this one on review sites and stores like Amazon.
It's easily one of the best dual hose operation ACs for giving you really fast, powerful cooling when you need it most!
This model features patented advance auto-drain technology. This recycles moisture collected during cooling to aid the production of cool air.
The ARC-143MX is ideal for use in areas that require low atmospheric moisture levels. Places like computer data centers, server rooms, wiring closets etc as well as in homes, offices and work spaces.
- 14,000 BTU, dual hose cooling. CFC-free r-410a refrigerant
- Auto-drain function fully exhausts condensate automatically
- 3 operational modes: AC, fan, dehumidifier
- Exhaust and intake hoses (up to 60")
- Window kit length max 46", min 20"
- Carbon air filter and washable pre-filter
Note: All portable air conditioners including this one must be vented using the included hose. The dual hose design allows the room to be cooled up to 40 percent faster and more efficiently
The Classic II Series Honeywell MM14CCS Portable Air Conditioner with 3-in-1 technology is a great cooler with a well known and respected brand name. It will cool and dehumidify areas up to 700 sq ft.
A lot of shoppers choose the well known Honeywell brand of free standing cooler and this model is a really popular one!
The MM14CCS features an auto-evaporation (self evaporation) system with dehumidifying function plus a traditional 3-speed fan-only function.
This is a highly versatile, convenient portable AC for cooling, dehumidification and fresh ventilation providing a high level of atmospheric comfort in your home or office space.
- 14,000 BTU no-bucket design air conditioner cools areas up to 550 sq ft
- Dehumidification function extracts up to 79.2 pints per day
- Digital LED display, feather-touch controls, full-function remote control
- 3 speeds. Automatic on/off timer 1-24 hours
- Quiet operation (55 dbA)
The high output DeLonghi 14,000 BTU portable AC with Linguino non drip technology automatically recycles condensation.
So there's no need to empty a bucket or drip reservoir when you own this cooler.
A huge bonus for owners of this model is it's hush-quiet, hassle-free operation makes it perfect for home, bedroom, basement, office or anywhere cooling is needed.
Three fan speeds with auto fan function makes this a versatile as well as easy-to-use model with digital controls, LED display and remote.
- 14,000 BTU cools a room up to 450 sq ft
- Fully self evaporating technology - no reservoir to empty
- 3 in 1 functions: AC, fan, dehumidifier
- Electronic controls, 24 hour digital timer and remote control
Emerson Quiet Kool EAPC14RD1
The Emerson Quiet Kool portable AC with self-evaporating technology is another great option for spot cooling and keeping you cool in summer. This model is quieter than many cheaper units with a sound level similar to a domestic fridge and has a single hose exhuast design.
As with the other products above, there is no need to empty a drip reservoir as it evaporates and exhausts excess moisture to the outside, acting as a dehumidifier as well as a cooler.
Thanks to it's quieter than average, easy operation, it is another perfect cooler for the bedroom or anywhere else you need a cooling solution where ther is no central or zone cooling option available.
Three fan speeds with auto swing louvers provide a wide coverage area. Digital controls are easy to use with an LED display and remote. There's a 24 hour timer with sleep mode for even quieter operation overnight.
- 14,000 BTU cools a room up to 350 sq ft
- Auto evaporation technology single hose exhaust, no reservoir needed
- 3 in 1: AC, fan, dehumidifier
- 24 hour digital timer with sleep mode and remote control
- Quiet operation at 52dBA
The four models above were chosen for their outstanding performance, build quality, cooling output and affordable price.
There are other, more expensive models that can be found both online and in stores, but the final choice will be yours on whether you want to pay more but perhaps not get the extra money's worth in value terms.
Now that we've looked at the 4 best self evaporating air conditioners in our opinion that are on sale today, let's get into the more in-depth side of this subject.
That's the part where I tell you some of the reasons why having a properly vented AC device in each room of your home or workplace is a very good idea.
Indoor Air Quality
While we're looking at these cooling devices, let's also take a look at their role in helping to improve the quality of the indoor air that we breathe. Indoor Air Quality (IAQ) can be affected by a number of gases (these include carbon monoxide, radon, volatile organic compounds), airborne particulates, microbial contaminants (such as mold, mold spores and airborne bacteria), or any other mass or energy stressor that might cause or induce adverse health conditions.
In most households, we rely on source control, air filtration and ventilation (open windows or extractor fans) to dilute the many contaminants as the main methods for improving the air quality inside the home. It is possible to further improve indoor air quality in the home by routine cleaning of carpets and area rugs.
Air conditioners can also help to improve the air quality inside the home in two main ways:
- By drying the air and thus reducing the potential for mold spores to proliferate
- By aiding ventilation through the exhaust of warm, moist air out of the building through its vents
Molds and other allergens can build up inside a room for a variety of reasons. There are two common classes:
- Moisture induced mold colony growth
- Natural substances released into the air, including plant pollen and animal dander
Mold is generally associated with moisture. Its growth can be inhibited by maintaining humidity levels below 50%. The buildup of moisture inside buildings may arise from a number of sources, such as water penetration from poor weather protection, plumbing leaks, condensation (caused by improper ventilation), or ground moisture rising through walls.
Drying clothes indoors can increase indoor humidity and along with it the risk of exposure to molds such as "Aspergillus" which is a highly dangerous mould that can prove fatal for the elderly and asthma sufferers. In areas where wallpaper and wood in drywalls gets moist and fails to dry within around 48 hours, the propagation of mold mildew can occur, releasing allergenic spores into the air.
Anything that aids the ventilation process in a room, especially one that would otherwise be sealed during the hot months of summer to keep the heat out, is a good thing. Air conditioners, whether fixed and ducted or portable and vented though a suitable wall or window vent will perform that task by circulating the air in the room and exhausting the unwanted heat and moisture to the outside.
It seems that no matter what you do to try and control things that cause a rise in humidity indoors, there are factors that cannot be changed. The main one is us human beings, ourselves. We perspire when we're hot and that perspiration evaporates into the air, effectively raising the humidity when ventilation is poor or not possible.
It's not a major problem when the number of occupants in a room is low. But things can get hotter and more humid when there are larger numbers of people occupying a room, for instance when gathered together to watch a big sporting match on the TV!
Air conditioning comes to the rescue on a number of levels in the above scenario. It cools the air that would naturally heat up with several hot bodies all together and likely in an excited state (it happens when watching a big game). It also expels the excess humidity that also builds up in the air thanks to all those sports fans shouting and hollering at the TV!
Dehumidification and Cooling
A major function of refrigeration-based air conditioning equipment is its ability to reduce the absolute humidity of the air that has been processed by the system. The relatively cold evaporator coil (its temperature being below the dewpoint) condenses water vapor out of the processed air, in a similar way in which an ice-cold drink will cause water to condense on the outside of a glass: first as a hazy film, then more pronounced as larger droplets form and slide down the glass.
Since water vapor is removed from the processed and cooled air, the relative humidity of the air in the room is lowered. The condensed water is generally sent to a drain or a catcher tray (in the case of portable units) or may simply be allowed to drip onto the ground outdoors (fixed systems).
The heat from the air is rejected by the condenser which in the case of portable air conditioner devices is inside the unit and uses the vent hose to exhaust this warm air from the room, or in the case of fixed systems, is located outside of room or building that is being cooled.
Many modern portable air-conditioning models have a dehumidification cycle built-in to them. This works when the fan is slowed as much as possible while the compressor is on. This lowers the evaporator temperature and causes more water to condense than it would do with a high fan speed.
With the ability to lower the temperature in a room significantly while at the same time reducing the humidity level and not allowing condensed water to fill a receptacle below the unit, a portable air conditioner with self evaporating functionality is a very useful appliance to own during the heat of summer.
This type of device provides a cooler, comfortable and cleaner atmosphere to live in without any fuss or extra work involved other than turning it on and off and setting the thermostat to a comfortable temperature. If you were on the fence about buying one or more units for yourself and your family, perhaps this article has helped you come to a firm decision.
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