Curious Aristocrat temp findings

[jonumberone]

I recently upgraded to an Aristocrat.
I opted not to get temp control because my previous cabinet held around 65 in the summer with occasional spikes to 68 during very hot periods.

The Aristocrat is in the same room as the previous cabinet, but in a different spot, and is directly in the path of an air conditioning duct, yet it runs much hotter than my other humi.
Temps in the Aristocrat were in the 70-71 range while the other cabinet, a mere 10 ft away were in the 64-66 range.
Now that the weather is cooling, the aristocrat is around 68 and my other humi is running at 62

Would the larger size of the aristocrat have an affect on temp?
The only other difference is the set and forget vs a Hydra LG but there is no discernible heat coming from either unit.

Any idea as to what may be going on here?
Thanks in advance!