Quote Originally Posted by Gil_J View Post
Very Cool! I'm curious why you don't trigger the stir pump on with the boiler, better yet use timers for both the boiler and stir pump triggered by calls for heat?
That will be part of the automation flows as I develop them. Though the way I have the glycol fluid flows designed the pump on the boiler will be the stir pump, not sure I need to run both pumps for circulation while the boiler is on.

The stir pump is to keep the glycol tanks mixed and to provide flow to the heat exchanger for domestic hot water.

I threw together this manual control page as a first step; so, that I can be down in the electrical and plumbing bay and control the system from my phone as I test it out.