Types of Air Conditioners?

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Old 04-21-16, 02:01 AM
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Types of Air Conditioners?

This might be a silly question, but here goes.....

Is there a type of air conditioner (for under $500 or so) that doesn't have to be vented outside?

It's my understanding that there is a type that is very portable that can just be moved from room to room.

Thanks for any info you can provide.
 
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Old 04-21-16, 03:28 AM
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There is only one type of air conditioner that does not have to be vented outdoors and that is a commercial water cooled unit and not practical to be used in a home.
The type you are referring to that can be moved from room to room needs to have either one or two hoses connected to an adapter panel and mounted in a window.

The text book definition of refrigeration is the transfer of heat from one pace to another.
In your case it has to somehow transfer it to outside and that would be through a window.
 
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Old 04-21-16, 10:28 AM
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Portable Evaporative Cooler?

Thanks for the reply!

What about something like this? I found it on Staples website and it sounds like you just fill it with water and that is how it cools down the room.

Do you know anything about these portable evaporative coolers? It sounds very portable, and I'm wondering if perhaps it doesn't have to be vented outside, and that maybe you just fill it with water, and plug it in.

Do you have any experience with these evaporative coolers? I've never even heard of them until today but it certainly sounds easy compared to having to figure out how to vent a big hose out of a window (in an apartment).

Thanks for any info you might have on these. )
 
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Old 04-21-16, 10:32 AM
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Old 04-21-16, 10:49 AM
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Evaporative coolers work reasonably well in hot, dry climates. They are popular in the southwestern part of the US where it is dry. However, unless your environment is very dry (<20% RH), an evaporative cooler won't be effective.
 
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Old 04-21-16, 12:23 PM
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I agree.
With an evap cooler you don't get anything for free.
For as much as it lowers temperature there is a corresponding increase in relative humidity in the space.

Also
 
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Old 04-21-16, 07:29 PM
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It's my understanding that there is a type that is very portable that can just be moved from room to room.
A portable air conditioner can be moved from room to room and does not need to be installed in a window. However it still needs to be vented outside through a window but in most cases the vents only take up about 4" of window space. You also have to empty the condensation from time to time depending on the humidity being removed from the air.

I would only recommend a duel hose portable air conditioner that has an intake and exhaust hose. With single hoes models you are taking conditioned air in the room and venting outside which is not very efficient.
 
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Old 06-14-16, 03:22 PM
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Would it have to be "installed"?

Thanks for the replies.

Re AC's that vent outside, rather than cutting anything, is it possible that the hose(s) could just rest on the window sill without actually installing anything? Not sure if that makes sense ......... What it would then be is the hose(s) lying on the sill with the window open 4 inches or so but some air would still be free-flowing in and out through the 4 inch opening not occupied by the hoses.

The reason to do it that way is because this is in an apartment building and they wouldn't want something actually installed in the window.

Would that still be somewhat effective?

Thanks again.
 
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Old 06-14-16, 03:38 PM
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AC's that vent outside, rather than cutting anything, is it possible that the hose(s) could just rest on the window sill without actually installing anything?
Portable A/C units do not require any permanent installation and do not require cutting any holes in walls. All you need is a slider or double hung window (although a casement could be used, but you have to get creative) that you can put the hose adapter in. The hoses then connect to the hose adapter. Everything comes with the portable A/C when you buy one.

Here is an example:

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Old 06-19-16, 01:52 PM
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Thanks again. Much appreciated.
 
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Old 06-19-16, 03:18 PM
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And remember do not buy a one hose portable A/C. The one hose is the most common at BigBox but it is inefficient and you may be disappointed in how cools. You really need the two hose. Also be sure you have a lightly loaded receptacle to plug it into. You may need half the amps on a typical receptacle circuit just for the A/C.
 
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Old 06-19-16, 03:39 PM
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And yet another thing.

The hoses/ducts are accordion style plastic and will stretch to about five or six feet. It is best to keep them collapsed to the shortest distance needed. They have no insulation so they will radiate heat back into the room. It looks like heck but getting some six-inch flexible duct with at least an R-4 rating to slip over the plastic is a good idea. You can cut the insulated duct with scissors and use a pair of wire cutters or even pliers to cut the spiral wire. It really does make a difference.

Another benefit to the two-duct models is that a large majority of the condensed water (room humidity) is re-evaporated over the condenser coil and exhausted out the exhaust duct to the great outdoors. This will reduce, or even eliminate, the dumping of the internal condensate tray.
 
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Old 06-19-16, 05:30 PM
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They have no insulation so they will radiate heat back into the room.
Some models do have an insulation jacket to put around the exhaust hose. Depends on the model/manufacturer.
 
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