Hot Water Coil Project
The temper tank is more or less an extra storage tank. The water in it is constantly being turned thru the coil by way of natural convection.
Whenever hot water is used, the preheated water from the temper tank flows into my electric tank so that the electric tank doesn't need to work very hard to bring the water up to 130 degrees.
During times of cold weather when I'm pushing the furnace harder, my preheated water goes beyond 130 and the electric tank doesn't come on at all..