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Posted by HeatPro on June 02, 2010 at 11:38:19:
In Reply to: Leaving tankless coil inside oil fired boiler posted by Dave S on June 01, 2010 at 20:07:06:
You can leave the disconnected coil without closing off the tubes.
Some have their burner tubes and parts with leaks in them so they fire daily to keep the prime. If the burner is tight with no leaks, no need to run the burner daily.
However, there isn't any savings from an electric water heater replacing tankless boiler heat as electric is more expensive until the oil is $4 a gallon in most areas.
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