Steam and a wet loop

Snowmelt

Steam job, with an indirect and a wet loop. I will use a tankless coil for a baseboard loop and an indirect. Would you just use a triple aqua stat or would you instal an external aqua stat breaking in temp rise ?

EBEBRATT-Ed

I don't see why you need a triple aquastat. You need an aquastat on the HW loop wired in parallel withe the control in the indirect,

Unless you going to maintain HW Temp in the boiler all the time and want a low limit. Are the HW load and the indirect load totaled less than the boiler pick up factor?

Snowmelt

Yes the load is less then the pick up factor