A method for supplying heated water from a water heater appliance to a washing machine appliance includes initiating a wash cycle of the washing machine appliance, directing heated water from a water heater appliance into the washing machine appliance if a set point temperature of the water heater appliance is equal to or greater than a specific temperature and/or if the water heater appliance contains a volume of heated water required for the wash cycle of the washing machine appliance, and delaying the wash cycle of the washing machine appliance if the set point temperature of the water heater appliance is not equal to or greater than the specific temperature and/or if the water heater appliance does not contain the volume of heated water required for the wash cycle of the washing machine appliance.