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Old 07.07.2017, 22:41
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Any recommendations for a portable AC?

decided to buy a portable air conditionner for our apartment but cant choose a brand- any recommendations are very welcome
thanks
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Old 07.07.2017, 23:26
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Re: Any recommendations for a portable AC?

I'm running an Aero KMO1201 from Digitec right now all is nice and very cool. Room temp is showing 20 degrees and humidity is low.

But...it's a quite noisy machine even in sleep mode and venting it takes some basic DIY skills. I think that will apply to all portable AC units.
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Old 08.07.2017, 09:25
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Re: Any recommendations for a portable AC?

There are two things to remember.

1. buy a machine which is the correct size for the volume to be cooled.

2. think about how you are going to get rid of the hot air, which comes out of the machine.

Personally I get along well with just a fan on hot days. Shut the windows and blinds around 9 am, only open north facing windows.
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Old 08.07.2017, 13:33
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Re: Any recommendations for a portable AC?

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venting it takes some basic DIY skills. I think that will apply to all portable AC units.
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2. think about how you are going to get rid of the hot air, which comes out of the machine.
Don't underestimate the venting issue. The type of window most common in Switzerland is not readily adaptable to the type of portable AC units available here.

It's a bit of a pain, and you end up with a window that can't be closed or locked without de-installation.

(If you live in a neighborhood prone to robberies, be cautious. Apparently thieves look for a condenser outside, as they know they can break in through that window.)

---

I hate hot weather, I'm miserable once the thermometer passes 20. So I certainly understand the desire for an AC unit. They have come down in price, and given that you run them only a few weeks there is little additional expense.

But installation is such a hassle that even I don't have mine in now. (It's a recurring battle discussion with OH...) I've used the AC unit two or three times in the last 14 years. But I'll admit that just having the unit, even uninstalled but knowing it's there just in case, puts me in a better frame of mind to go about my day when the mercury climbs into my unbearable zone. Kind of an expensive doorstopper but hey, what can ya do.

Another alternative: I have a room dehumidifier. While this does not cool air it does take out enough humidity that room temps remain bearable. No need for fussy installation, just plug in.

---

If you think you'd like to have AC on a regular basis, and if you are living in a permanent place, perhaps consider installing a non-portable unit. But first check to see if your neighborhood rules allow the outside condenser, some forbid them.

Good luck.
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Old 09.07.2017, 09:30
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Re: Any recommendations for a portable AC?

  • look for a unit that expels the condensate water together with the hot exhaust air otherwise you will have to empty water tanks every couple of hours Delonghi AC units tend to be designed to expel the condensate water
  • compare the noise levels of the units
  • try to purchase a unit from a known brand
  • get a unit with an infrared remote control with a Broadlink Wifi/IR remote controller (available from gearbest.com for about 19.-) you will then be able to control the AC from anywhere via a mobile phone app
  • most portable units will suck air from inside the building to cool the condenser and then blow that air outside creating a vacuum inside the room which then leads to hot air from the outside getting sucked into the building somewhere else which is not at all efficient in order to make a portable AC work with a reasonable degree of efficiency it must be converted to a dual hose design (whereby the air to cool the condenser is sucked in from the outside of the building see Youtube how this is done)
  • the exhaust vents are not designed for the type of window used in Switzerland
  • unfortunately the level of engineering of all portable units is rubbish they use very noisy cheap compressors (no inverter technology) the cases are flimsy and act as resonating boxes none of them use sound dampening materials - they have bright lights which don't go off at night and will illuminate your bedroom the hot air exhaust ducts are not insulated they expel the cold air trough small openings at high speed creating a lot of noise - they are probably all manufactured by the same factory somewhere in China based on a design conceived 40 years ago

How you can improve the mounting of a portable AC
  • get a piece of weather resistant plywood that is slightly larger than the window opening so that it can be mounted into the open window opening from the outside cut slits into the board so that it can be clamped to the window opening with screw clamps
  • cut a hole to permanently mount the exhaust air adapter
  • if you convert the portable AC to a dual hose design, also cut holes for the cooling air inlet space these holes apart from the hot exhaust air (mount the exhaust air slightly higher then the cooling air inlets)
  • for the cooling air inlets you can purchase plastic adapters and air hoses at Hornbach these are usually used to mount clothes dryers you will have to build some sort of 'adapter box' to fix the input houses to the AC cardboard boxes and duct tape will do just fine use two cooling air hoses so that there is sufficient low resistance airflow to the AC - cover the inlet side or the air hoses with netting to provent insects from getting sucked into the AC
  • decouple the AC acoustically from the ground by mounting it on a platform of rubber foam mats that is topped by a piece of same size plywood and another piece of rubber foam by placing the wheels of the AC into little plastic boxes it will not slide off the platform
  • and finally wrap the bottom of the AC in foam mats to further reduce noise radiation

Always ensure that the AC gets proper airflow.

......it may not look nice, but it works and part of the installation can be hidden behind a night curtain
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Old 09.07.2017, 22:30
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Re: Any recommendations for a portable AC?

I wouldn't recommend any single hose a/c unit unless you have no other option but you can buy "zweischlauch" units which have two air hoses for the hot side, thus not needing hot outside air to be drawn into the room. Otherwise I can't recommend split units enough. The hot side is kept outdoors but it's only a fan so not so noisy for your neighbours. Inside units have the compressor but are also usually not as noisy as monoblock units. You also don't need such a large hole to the outside.
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Old 10.07.2017, 00:48
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Re: Any recommendations for a portable AC?

For some reason dual hose AC units are no longer on the market.
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