So I think I finally got the temperature in my rack sorted out. The top rack is maintaining a 88-90f hotspot and cold side around 80-81f.
Problem is this is not consistent on all four level. hotspot temperature goes up by about 1-2f the lower the level of rack (weird considering that heat is suppose to rise, I chalk this up to having the rack directly on the floor as I have ground heating)
The lower rack's hotspot can reach up to 96f-97f but the cold side is still maintain at around 81-82f.
the rack is not gonna be full for a long time but is this 6-7f hotspot variation through out the rack gonna be a problem in the future? Would having a good gradient make having the high hotspot temperature ok?
I'm now paranoia about temperature lol, 90f on the top rack still concerns me as the hotspot still doesn't feel that hot to my hand and I'm worry that my thermometer isn't that accurate and the bottom rack is actually over 100f at the hotspot.