I recently had an external hot water tank attached to my tankless oil burner furnance. I want to know if the thermostat setting on the furnance and the thermostat setting in the external tank should be the same.
Also, I would like a brief explaination as to how my setup works.
I was told that when hot water is used it comes directly from the external tank. And that hot water is fed from the water tank in the furnance into the external storage unit when needed. When does this happen?
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