Don't take my word for it because I haven't been able to find the write up again.
I found a scientific paper on the added benefits of higher temperatures in hydroponics. They stated that vegetation grows much better in water temperatures around 74 degrees. I know it sounds crazy but this wasn't one of the know it alls on a cannabis forum but an actual scientific study that was done.
Food for thought that goes against everything we are lead to believe and I bet most would not be able to pull it off. I wouldn't ever try it but the explanations why it worked this way was very convincing.