Sorry to ask this, but I'm having a little dilema. I was fermenting my beers in my basement with a space heater keeping the area around 65 degrees for all of my fermentation. That was all fine and good, but now my heater broke and I can't get another one yet. We just started fermenting an oatmeal stout yesterday. If I leave it in my basement, the carboy is going to go down to probably 58 degrees. In order to keep it warm enough, the only place in my house with room is my kitchen. Although the kitchen never gets over 70 degrees most of the time, my stout is currently around 72 degrees and it seems to be staying there most of the time. Is this ok? I know optimal temps are around 68 but I don't want to overdo the temps and ruin the batch. I'm using White Labs WLP002 English Ale yeast. 
P.S. It's fermenting well right now... from what the eye can see.

P.S. It's fermenting well right now... from what the eye can see.