I’ve searched around and mostly seen people create custom radiator builds attached to their water supply, but that’s beyond my skill level and I’m not sure if linking it directly to the water supply via piping would violate the lease or not. Are there any solutions a bit more DIY that I could take advantage of?
This is exactly what I was going to suggest. Use the water to cool the radiators, and use fans to push hot air through the cool radiators, cooling the air in the process.
This is basically what AC does on a much larger scale. It uses refrigerants, a compressor, and some basic physics to cool the radiators, but it’s still the same basic concept.
I don’t think a box fan could cool one entire 20x20in automotive radiator, let alone two.
fan -> plenum -> radiator would probably work best. The plenum only needs to be a few inches long, it’s just to direct the entire square of the fan over the entire square of the radiator. Cardboard and caulk would work.
It’s a low efficiency heat exchanger.