Hello,
I have a slightly different suggestion which we have found works best and cheap. We have taken old (non-working) refrigerators and place them inside the cold rooms *"but never power them"*. Since they are refrigerators they have a good insulation to start with , have trays to place crystal plates, and don't suffer from rapid changes in temperatures as people walk in and out of the cold room. If you need you can even ask a/c personnel to get rid of freon and the compressor. They even hold the temperature bit longer in the event of short power failure of the cold room.

Catrine Berthold Siöberg wrote: Dear CCP4bb members,

We are planning to buy an incubator for 4deg crystallizations. Currently we are using our cold room, but the temperature deviates a lot when people go in and out of there and the fan is quite strong. Does anyone have one to recommend?

Thanks for any suggestions,
Catrine

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Dr. Thayumanasamy Somasundaram [Soma]
Director, X-Ray Crystallography Facility (XRF)                  
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