This is my setup for color film processing.
If you search the web for tips on doing your own C-41 color film processing you will find people suggesting rather elaborate temperature control schemes, often involving aquarium heaters, turkey roasters or expensive rotary agitators. None of that is necessary if, like me, you are mostly processing one roll at a time. I just run some hot water into a plastic pan into which I put the developer, blix and stabilizer to warm to the recommended temperatures. When the developer reaches 102 deg. I pour it into the developing tank, turn off the hot water and set the tank in the pan. Since development only takes 3.5 minutes, there is very little temperature change that takes place. The blix phase is less critical in regard to time and temperature, and the stabilizer goes in at room temperature. I have developed nineteen rolls of color film using this method and the one-liter Unicolor kit and have not seen any unusual color shifts or other processing problems. Below are some shots from my last roll shot on Fuji 200 in my Contessa 35.