pa coal cracker wrote:The attachment you included showes the aquastat controling a valve, from reading all the posts on this sight reguarding this application I do believe there has to constant water circulation through the tank and stove to avoid boiling the water, for that reason I want the reverse aquastat to control the fan on the unit heater. Now on to my next question. What temp are prv valves set to open at, and what would be the proper setting for the aquasat? Thank you Craig.
I forgot to include the pump in the diagram ... fixed it
. The water doesn't have to flow through the tank continuously, but it does have to flow through the coil continuously. So, the "closed" valve would allow it to flow through the "coil/tank" only OR "open" valve would allow flow through the "coil/fan heater" ...and maybe a little bit through the tank, as I have it drawn.
I've forgotten what temps the PRV are, but if you have one on the tank, it should be OK. The aquastat should be set at the normal setting of your high limit water ... 120* ... I forget what we are supposed to have here.