happyTrails
phishpanicjam
I know that if someone came up with a nice bong or beaker that incorporated a heating element that kept the water at the desired temperature (kinda like an electric tea kettle), I would buy it in a heart beat and if ANYONE takes this idea, runs with it, and it becomes viable……..know this. I will find you and demand a cut.
What about one of those USB coffee mug heaters for a straight tube?