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We want to change our water heater to a tankless one, but the geothermal system runs through the existing water heater tank. Does it need to, and, if so, can we scale down the size of the tank just to do that and then continue with our tankless plans for the rest of the house? Thanks in advance!
In my mind, running the geothermal water supply to the water heater is pre-warming the cold water inflow to the water heater, thus reducing power consumption. So if you are deleting the standard water heater and placing a tankless heater, the geothermal supply would then become the cold water inflow to the tankless heater.
You want to have a 2 water heater tank system with the 1st water heater used by the geothermal system as a pre heated water tank that feeds the already pre heated water into the 2nd actual water heater. In this scenario the 1st tank is not not "turned on" to heat water.
Is it truly geothermal, or just a heat pump ground loop?
I wondered this, too.
Are you atop an active volcano? I used to live on the side of Kilauea, but there was no access to hot water.
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