$30 from HF in May 2013. No heat needed. It maintains about 135F.I bought a UC at Harbor Freight for like $80. (got the biggest one go big or go home) and have been using it to steep my juice for about a month now! Jury's still out on how well it works because I'm still messing with my recepies! Mine has a heater that goes to about 140-150 deg. and after it gets warm you turn off the heater and it holds temp from the ultrasonic I think! This may be like DUH to most of you but don't UC steep in plastic bottles! You get a plastic taste at first but it goes away! But still if it's transferring flavor what else is it doing? So I bought 6 amber glass 120ml bottles from Amazon & its much better! Spent $108 at RTS last night on PG VG & flavors last night! Didn't buy any 10ml flavors this time just 30's & 120's! Oh yah, my UC only runs in 8min. cycles & you have to let it rest for a few after about 3 cycles!
Four 45-60 minute cycles with an hour or so between.
I've been beating on this 3 minute UC for about 30 months at least twice a week.
Picture from June 2013 - Still good as new