If you find that the urine is a little too hot to submit, say about 100 degrees, if you can wait a few minutes the temp will drop pretty quickly. In reality when you urinate the urine will lose about 2 degress upon leaving your body; so remember no one is exactly 98.6. If its not coming down fast enough just swirl the sample (more airflow causes it to cool faster). And they're right, the heat pad comes with it for a reason. Most people are already nervous and can become peeshy so don't freak if it takes a few minutes. MY boyfriend and I share his Pissinator (we just buy extra samples); he gets the prosthetic part and I use the bladded by itself. But no matter what we always use the heat pads. FYI: they work best if you let the temp stabilize for about 30 minutes before you stick them on. Thet should heat for about 6 hours max.