I've got BOTH ACs running at the SAME TIME.  The living room and bedroom ACs are sharing a single 20 amp circuit.  According to their labels, the living room AC draws 4.9 amps and the bedroom AC draws 4.5 amps.  So, 10 amps left over.

Also on that circuit is a single desk lamp, my cable bridge, router, dvd player, PS2, and possibly a cell phone charger. 

Hope I have enough leftover juice!

Women have know idea how that affects us.  You remember recently the guy on the bus that threw the girl out because of her breasts.  Hmm, hmm, good man I say. Driving can be dangerous, you dont need those distractions.

Ok, wrong thread.

Ah, these are your new 5,000 BTU A/C's, I assume.  Is it enough to cool down your rooms?

I hope you don't feel so guilty about increasing Global Warming that you can't enjoy it.  Sometimes, as an American, I too revel in the resources and standard of living we get access to.  "It's GOOD to be the king" from time to time.

Not to excess, of course.

Seems to be doing pretty well.  For the first time I walked into my apartment from the hallway and didn't smack into a fish-tank of moisture.

Running the other one 24/7 increases my energy bill by about $20/month.  I suspect running two consumes slightly less than double that energy, so maybe $35/month boost in July/August.

You realize that AC is responsible for President W? Without AC, the southern US would be uninhabitable, the red states couldn't get enough electoral votes together and we'd be civilized.

"Also on that circuit is a single desk lamp, my cable bridge, router, dvd player, PS2, and possibly a cell phone charger."

It's very foolish to have anything with an electric motor on the same circuit as your delicate electronics, unless you are hoping to burn them all out.

Not much I can do about it.

Meh, 4 or 5 amps isn't going to hurt anything.  It's not like an A/C has a wildly varying load (like an arc-welder, for instance).  It may 'brown' out your voltage briefly when it turns on, but probably not.  You can check that with an AC voltmeter if you're concerned.

My HP LaserJet IIIP pulls 10 amps from time to time, to keep itself warm.  And a Microwave Oven is the other big current user.

"You can check that with an AC voltmeter if you're concerned."

Or just watch the light bulbs dim when you turn ont eh microwave... mine used to do that.

Hubble, you are wrong.

The main danger would be voltage spikes when the motors switch on and off. Best to make sure all the electronic stuff is on a good power conditioner and surge protector.

you just drowned a polar bear with your global warming you mean bastard.