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Neilk Neilk is online now
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Join Date: Feb 2000
Location: Dallas, TX
Posts: 4,614
The timer based pumps I have seen turn off after reaching 90 to 100 degrees, so the water is hot within seconds of turning it on. Our schedule is too unpredictable, so I want push button operation.

As I understand it, the pump bridges the hot water to the cold and recirculates the water until it reaches a set temp. Since we are tankless, the key is getting enough water circulating to trigger the pump.
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Neil
'73 911S targa
Old 10-31-2018, 06:57 PM
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