Product review (5 stars): Fix  the  frozen waterline  in under a  minute !
Highly recommend  it. My fridge  water  dispenser  freezes  often  during  winter.  In the  past  I had  tried  heating  the  line  using  blow  dryer , heater  and  what not, often  times  giving  up after  the  first 20 minutes.  It  takes  hardly a  minute  to  thaw  the line  using  this tool - 30 seconds  to heat  up 1/2 c  water  and  one  or two  applications  into the  water line ..  Highly recommend  it !