Just bought the 50 pint d/h. Got it for 260 with a 3 year warrenty. It uses about 860 watts of energy. I also plugged up the hole in which cold air was coming in from outside, so now my fresh air is being brought it from underneath the doorway...

Now, outside the doorway is a hallway, a bathroom, and another bedroom. If I keep the bedroom door closed often (as well as the door that seperates the hallway from the house) it should work just fine.

I would prefer have the d/h in the actual room, but my Vortex is going to suck out air quicker than the d/h can work. What do you guys do to combat that? I was thinking maybe setting the fan to go off for like 15 minutes out of every hour and then the d/h turns on? I'm not really sure but I know having a d/h outside a locked door isnt the most stealth thing in the world.