I have been putting off turning on the DHW part of my system, but there really isn't a reason not to connect it up. I have forgotten to add a mixing valve, but beyond that I have taken this beast as far as I can go. Please help by finding ways to simplify or make it better.
Background:
There is a backup hydronic heating system connected to the DHW system. Those two loops with a propane fireplace can keep the house warm.
New stuff:
There is a second circulator pump that is controlled by the boiler that will move DHW in a loop through the boiler Domestic loop through the two storage tanks and then up and though the DHW tank returning to the pump.
The fresh water is brought up to the boiler loop, since this loop is inside the boiler tank it can handle cold water input, a check valve is needed to stop reverse flow to the HW heater.
Note the connections to the circulator pump (shown as an angle line), this concerns me.
The domestic supply selector is just manual valves to support non boiler months.
I have updated the schematic to help clarify
Background:
There is a backup hydronic heating system connected to the DHW system. Those two loops with a propane fireplace can keep the house warm.
New stuff:
There is a second circulator pump that is controlled by the boiler that will move DHW in a loop through the boiler Domestic loop through the two storage tanks and then up and though the DHW tank returning to the pump.
The fresh water is brought up to the boiler loop, since this loop is inside the boiler tank it can handle cold water input, a check valve is needed to stop reverse flow to the HW heater.
Note the connections to the circulator pump (shown as an angle line), this concerns me.
The domestic supply selector is just manual valves to support non boiler months.
I have updated the schematic to help clarify