It all really depends on the cooling power and speed at which this chiller can cool water. Seeing as you have TEC it should fluctuate rapidly because TECs output a lot of heat and aren't the most efficient cooling solutions. If you are really seeking below zero temperatures you might want to just find a junked A/C unit and make a chiller with that it would work better and probably cost a lot less provided you can get the refrigerant and some tools. This device wasn't really meant to be under constant stress it's merely a temperature regular for an aquarium so i doubt it would really serve your needs because with a good water cooling setup you could probably get low 30s. Modding this device would probably entail changing parts and replacing tubes.
|