Great question, this has been running nonstop for a bit over a month now. SO FAR it has been fine. I have a few of the tiniest leaks in some spots but nothing for concern yet. The machines themselves should be fine, everything is solid state, no moving parts, and they at at temperature 24/7 which is prefered.

If it ever gets too cold or I need to do maintenance, my old oil boiler is in parallel and can take over