I think if it went so long before you noticed that the temperature became a problem (unless you live in an igloo) that you'd have other problems from not having any filtration/water movement.
yea you have a pretty good point there. Im to broke to go on vacation and i work 8 hour days. I probably will put them both down there. That will be cool now my oscar wont rip it off the side of the tank, lol.