Recovering into half full tank?

[Unicorn_Theory1]

Or the old cooler w slurry and a temperature appropriate pump to circulate heat transfer fluid to your jacketed condenser,
quick search found this…

Chiller Hack (DIY)

Here is a quick hack - great for anyone who wants to add condensing power to a nonvolatile solvent recovery system. Basically you’re building a Kegerator, but using coils instead of kegs… I may do a build this week or next week and add a condenser to my rotary evaporator to really push that thing. I’m open to alternative design ideas or suggestions. The idea is simple. Get yourself a chest freezer. The larger the reservoir, the better its cooling capacity will be at the same temperatures. Most …