In fairness to all, we don't discuss pricing on the Wall. Thanks for your cooperation.
Why not a zone for every room?
On a hydronic heating system, I am wondering why it isn't more prevalent for a zone to be supplied for each room. Is it simply the cost of the piping and circulators/zone valves? Or is there a reason such as only one zone running would be inefficient on a boiler that needs to be sized for all zones? In my three bedroom house, two of the bedrooms are virtually never used so I want to close the doors and turn the heat down to 50F or so.