I have been learning everything I can about this system for the past month. I have a question regarding the Aquastat and hotwater loop for potable hot water.
Our aquastat which is a Honeywell L4006A is set to 180F currently. Best I can tell Burnham recommends 190F for steam boilers I assume in order to get the most out of the hot water coil.
We recently had a new mixing valve installed and the hot water coil cleaned which cured 90% of our hot water problems (new house to us).
The hot water temp still changes some during a shower. I am assuming if I raise the aquastat to 190F per Burnhams recommendation this should help if not completely cure the problem? The mixing valve is set to around 120-125F.
My main concern is I don't know the drawbacks of raising this. Burnham states 190F with a 10deg differential. Won't this cause the burner to run often?