As luck would have it, my Igloo "fermentation chamber" has held the temp of my beer within a degree or so for the past week.
Instructions on my beer say to raise a degree while dry hopping and I assume to clean up any remaining stuff.
I like to apply the "if it ain't broke don't fix it" mantra in life quite often. Before I go adding warm water to my cooler, I'm curious how much of a difference a degree raised in the beer temp. will make in the final product?