When I purchased my home it came with a 150,000 BTU propane furnace with baseboard heat and an indirect water heater. The home has three zones One being DHW. The system is a supply and return and the zone valves are Honeywell. The series of operation is simply the zones are wired in parallel with the end switches going to T and TV. My question is I purchased a taco ZVC 404 to use with the addition of my wood boiler and thermal storage but am trying to find the benefits in changing its simplicity of parallel wiring to separating into individual zone controls any feedback is appreciated!