Ponder this: when you know the solar radiation, the temp, the wind, and the thermo-dynamic properties of the physical device you can apply a crafty mathematical formula to correct for sun expsoure and effectively eliminate the need for a clunky Stevenson shield or waste power on aspiration. (Or you can opt to put the AIR as you have in your Stevenson at your choice.)
Plus, many precip performance tweaks we haven’t told you about yet. 
Have faith @bocestar.