The new house has 6 zones. I don't spend my time in more than three zones a day. Half the of the day I work and don't spend my time in any of the zones. When I arrive home I turn up the heat from 60 to 70 in zones 1,2,3. This plays hell with the humidity. I have the a very capable humidifier, but I am afraid during the extraordinary low temps like now the condensation on the woodframed windows will destroy the surrounding wood work. Interested in how others address the condensation on the windows problem? Us boiler guys should have it harder than most.