Hoping there’s some people who know a lot about circulation pumps here. I’m about to buy one for my HRV pre-conditioning loop. I was planning on getting a Grundfos Alpha2, as that was what was suggested and supplied by the company I got my in-floor heating stuff from. They said it used 50-75% less energy. They’re also pretty pricey. I’ve done some reading on these things, and I’m wondering whether they will actually perform any different than any other pump in a simple on/off application like mine. It seems the big feature, Auto Adapt, depends on the system having some automatic method of changing load (e.g. thermostatic valves). Without that, I’m having a hard time picturing what this thing would be adapting to. Am I correct in thinking this thing is overkill for both my in-floor heating and the ground loop?