12-27-2025, 02:52 AM
I’m trying to build a small, self-contained hydroponic system for leafy greens inside a repurposed IKEA cabinet in my apartment’s sunroom, but I’m hitting a wall with temperature stability. The space gets strong afternoon sun, spiking the water reservoir to nearly 80°F, which I know is inviting root rot, but direct cooling solutions like a water chiller are out of my $150 total budget. I’ve tried insulating the reservoir with reflective bubble wrap and adding frozen water bottles on a timer, but the temperature swings are still too drastic between my morning check and the peak heat at 3 PM. I’m wondering if anyone has successfully used a low-power, small-scale thermoelectric cooling module, the kind used for mini-fridges, wired to a simple thermostat controller in a similar enclosed setup, and how you managed the condensation and humidity buildup without a full ventilation system.