Comments on: Portable Air Conditioners

By: Mark Hills

Mark Hills — Sun, 15 Feb 2009 16:36:43 +0000

temporary portable Yes it is true that Air Conditioning Hire air conditioning hire range of air conditioners from 2kw to 500kw, our portable air conditioning hire models are used for office cooling, server room air conditioning, factory and event cooling hire. When your air conditioning goes off-line for maintenance or breaks down, Watkins portable air conditioning hire can handle any temporary space cooling situation that may arise.

more information on portable air conditioning hire services

By: syrhiz

syrhiz — Thu, 27 Nov 2008 01:56:34 +0000

Cool portable air conditioners. more efficient to cool the areas where you are sleeping and working by using a portable air conditioner. it give a thumb up!!

By: Shiney

Shiney — Fri, 19 Sep 2008 12:02:04 +0000

Yes it is true that Portable Air Conditioning unit gives you the best of cooling you require and is also comfortable to move from one place to another.

By: Crackers

Crackers — Wed, 30 Jul 2008 16:28:35 +0000

I recently purchased a used portable ac at an estate sale. Brand is WindChaser, 9,000 btu. I love it! It only has one hose to vent the hot air out. I don’t see how two hoses positioned side by side in a window can draw cool air in when the hot air hose blowing out is right beside the “supposed” cool air hose. Seems to me like you’d still be sucking in hot air.

Been using it for 2 weeks now and don’t have a single complaint about it.

By: leo

leo — Wed, 16 Jul 2008 05:31:31 +0000

Don’t buy one of these machines unless they have two hoses. One to draw air from the outside and one to blow out the heated air. Otherwise a vacuum in the room you are cooling is created and drawing air in from werever like crackes in windows from the outside and now you pay to cool outside air also. A 10,000 BTU cooler may only be able to cool a 150 sq room not the claimed 450 feet most say wasting lots of power. Never buy the single exhaust portable air conditioner. These things only help melt the Polar Ice Caps

By: Jim

Jim — Thu, 03 Jul 2008 21:05:39 +0000

Thanks Matt. So it sounds like this will only work using double-hung windows that will shut down on the adjustable piece you mentioned.

By: Matt the Engineer

Matt the Engineer — Thu, 03 Jul 2008 21:00:02 +0000

An air conditioner is a heat pump – it moves heat from one substance to another. In order to cool down air it needs to warm up something else. This is why there’s a vent needed – it warms up air, and dumps that air outside.

Generally portable A/C’s have a vent pipe and an adjustable piece that is designed to be closed in a window. Just sticking the pipe in an open window will leak warm outside air into the room, which is why this adjustable piece is important.

You certainly shouldn’t drill a hole in your wall – that kills the whole idea of making it portable!

By: Jim

Jim — Thu, 03 Jul 2008 18:15:00 +0000

THis may be a dumb question: Do all portable A/Cs have to be vented to the outdoors? If so, do you need to drill a vent hole through your wall? Or just stick a vent pipe through an open window? What if you have casement windows?

By: coal_burner

coal_burner — Thu, 03 Jul 2008 12:54:02 +0000

Hold on a second. That 14EER although technically accurate, is absolutely bogus.
An air conditioner removes heat from an area where it is not desired(the room), and places it in an area where it is not objectionable(outside).
The greater the difference between the outdoor temperature and the indoor temperature, the more energy is required to push the heat up that thermodynamic hill.
Normally the EER is measured with specific indoor and outdoor temperatures so that all air conditioners are on equal footing. Portable air conditioners exhaust some of the indoor air that you just used electricity to cool, to cool their condenser coils and move heat to the outdoors. This air is made up for by the fact that warm air from outside will flow in through leaks around doors and windows.
Using this pre-cooled air allows the air conditioner to run at a lighter load, but it must run for a much longer period of time to make up for air that it has forced to be sucked into a room.
An EER8 window unit will use far less energy than an EER14 portable unit to cool the same room.
My neighbor found this to be true when he used his kill-a-watt meter to compare the power used by his old, yard sale purchased window shaker, to his new high efficiency portable unit. He was trying to show his wife how much electricity they would save with this new unit, but he ended up proving just the opposite.

By: Heidi

Heidi — Thu, 03 Jul 2008 05:57:10 +0000

Thanks for posting this. I had no idea these existed. I live in the Colorado mountains where the summer days are typically hot and the nights are typically cool, except for late July, and August, where even the nights can be unbearable. I have been shopping for portable air conditioners, but now I’ll be looking for a fan. Thanks again.