For an automatic drip system, simply pour the water into the holding vessel and replace the carafe (covered) to the warming unit.

For any manual method, place a pot of fresh, cold water on the stove over high heat. Watch closely until the water measures between 195 and 209 degrees F. (you'll see steam and tiny bubbles at the edge of the pot). Remove from heat as soon as desired temperature is reached. DO NOT BOIL.