if you consider how fast the water is moving into your unit (waste + clean) it's actually moving really fast. the plastic tubing isn't going to really let the heat transfer very well either. i'm not saying the bucket trick doesn't help but i'm guessing it would be so miniscule and probably not worth the cost of running the heater.
you should test the temp of reg output and then heat the bucket up and compare i am curious =)
|