one of each.

I built the Norcold into our Nor'Sea years ago.

A couple of summers ago, in the Sea of Cortez (VERY HOT!!!!) I had both the Engle and Waeco (about the same size) in the aft cabin. With my Link 10, I measured the Amp draw of each in real use. BY FAR the Engle used less power to cool the box to the same temp. By almost 50 percent!!!

Greg