If a warmer towel is desired, try folding the towel over or unfold it to experiment, try a thicker towel (traps more heat, resulting in higher surface temperatures), a different fabric (cotton vs. blends), leave the towel warmer on longer before the shower (thicker towel plus longer heating time), or place a second towel on the warmer to trap more heat. Keep in mind, the towel will at some point reach its maximum temperature on the towel rack. If that time is an hour, leaving the warmer on all day will not raise the maximum temperature of that towel or warmer, but if you would like to experiment, that's OK, too.