Hi, years ago i bumped into the seebeck effect in the encyclopedia. So, i googled "seebeck air conditioner. Here's just one link http://www.customthermoelectric.com/

It's pretty neat how it works. In theory, there are no moving parts except for fan that blows the cooler air into your room. The thermos that plugs into a car cigarette lighter i believe works on the Seebeck effect

If you run the refrigerator with the door open, will the room get hotter or colder if there are no other outside influences on the room?

Tell us Fred....

Neighter. The room will remain at the same temperature.

Whoops. The refrigerator will continuosly run. The compressors heat shall heat up the room

Thank you, yes indeed the hot air needs to be pumped out. I was unable to find ANY model (real airco) which works differently :-(
The back of the refrigerator is hot where those tubes are (I can't check mine it's built-in) and their job is to cool a closed relatively small space. I guess with the airco it is for a much larger space. The tube if left in the room will blow the warm/hot air back into the room so it won't work.
What I though is the following solution:
put the pipe through a door opened just enough to blow the hot air into the hallway - only for the night so I can sleep. Indeed I will have obstacle to get to the bathroom in the night but that's the only solution I can think of.
I don't know about that extension to the window, first of all it would run through the whole room and around the bed I guess so it would have been a very long gigantic pipe, wouldn't see the bedroom anymore :-)
Feel really disappointed about all this and not sure what to do...

Yes. Running the pipe into the hall will be better than nothing at night.

Thanks Fred.

You might want to experiment with leaving the window open slightly and/or a small quiet fan in the hall to dissipate the heat buildup in the hall for optimum performance. Otherwise, the hot air buildup in the hall will try to spill back into the bedroom after a while.

You might be out of luck. I had a similar issue but couldn't find an easy solution in canada. Not to sound cheeky, but you might have to go old school - http://m.wikihow.com/Sleep-Comfortably-on-a-Hot-Night

In most cases, your portable air conditioner will not need to be drained.

Edgestar, Avallon and Koldfront portable air conditioners use a condensation exhaust system to expel water vapor collected during the dehumidifying/cooling process. This moisture is released through the exhaust hose along with hot exhaust air.