Review on 💨 WiMas DIY Peltier Cooler Kit: Efficient 12V Semiconductor Thermoelectric Cooling System with TEC1-12706 Peltier Heatsink Module Kit and Fan by Juan Crane

The fan is too weak and the radiator is covered with ice and lots of condensation. I switched to a better fan and now there's a lot of cold air coming in, the radiator doesn't freeze and the hot-side radiator is noticeably colder, so the balance is right. I use them for a completely different purpose. In my greenhouse the temperature for most vegetables is too high for broccoli, so I created a microclimate for broccoli. The point is that the problem lies in the temperature of the ground. I routed the copper tubing into the container, like a cooling coil in a refrigerator. The circulating water runs through two computer heatsinks, each with two fans. I mounted one of these units above each heatsink/fan so that cool air is blown through the fans/heatsinks. Everything is controlled by the Qubino using a temperature sensor to control the soil temperature. Works great when summer temperatures make greenhouse cooling a chore. This dual radiator setup is great for four growing containers.