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Posted by Joe Brix on January 17, 2006 at 08:09:25:
In Reply to: Zoned or not zoned? posted by Alan on January 17, 2006 at 01:03:59:
Not to remove any zone valves or thermostats, I'd "slave" several zones to a master zone. Pick the two zones you want to control the circulator(s) and fire the boiler (pick the rooms that need the most heat). On all the others I would disconnect the contact relay that triggers the aquastat of the boiler.
The "slave" zones can still open their zone valve, but have to wait for the "master" zone to trigger the circulator and boiler.
With 7 zones, you probably have more then 1 circulator, so you have to figure out how the zones are related to a common supply header.
But the nice thing about this set up, if a room is warm, it can't over heat. I also find that having the zone valve open without the circulator running still allows a small amount of heat to gravity flow into the zone. This prevents a zone from going through wide temp swings.