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Posted by Dave on January 19, 2006 at 15:43:32:
In Reply to: Re: Heatmanager vs Honeywell T475A posted by HeatPro on January 19, 2006 at 12:41:44:
In the first situation (with the Heatmanager), the boiler circ would pump water from the boiler to the buffer tank whenever any individual zone was calling for heat as that is the way the SR504 would remain wired to the boiler.
In the second situation (with the T475A), the boiler circ would only run when the buffer tank or the T475A called for heat. (Not necessarily when the individual pumps are running as the wire from the SR504 to the boiler is gone).
Would it be more efficient to have the second situation vs the first....or does it not really matter?