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Domestic hot water
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Firedragon_4
Member Posts: 1,436
about 140-150 F and the boiler at 120F. I've done that for 5 years with just an external tankless, no problems.
0
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Domestic hot water
If I have a storage tank working with a tankless coil, Do I need the boiler to be warm start? Dose it mater if its cold start since the waters already up to temp in the tank? Or is it just more efficient to run it warm start?
Thanks,
Jon0
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