Sting wrote:I always marvel as to WHY folks wire - using C1 and C2 -- because why would you want a circulator to stop taking energy away from a solid flue appliance - when the load is calling for heat.
Ok some have said its for boiler protection and I preach that so its My Fault - There are better ways to protect a boiler from condensing temperatures.
I am running 5 zones including indirect hot water heat,
\fasthondacr250 wrote:This wiring setup has worked pretty well last winter but has one flaw:
The zone circulators will run while the main circulator is off / system is not up to temp.