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Viessmann WB2B Hot Water Priority?
I'm having a Viessmann WB2B gas boiler installed. It has a outdoor/indoor temperature rest. There will be 3 hot water baseboard heating zones and an indirect Boilermate DHW heater. The installer said that the priority hot water feature will not work with this setup. Something to do with the return water temp and the outdoor temp set point. I'm not sure what he is talking about. Any thoughts? The average winter temp is 0 degrees F.
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