...for a 2800 cm³ air-filled box? I want to create a fridge, so the temperature must be around 5 degrees (I think?). The peltier(s) will be watercooled with a CPU waterblock, so they can have really high wattage. What do you suggest to use? I don't know anything about peltiers - wattage. Maybe even use a 40mm fan to support airflow inside the fridge?