The long run (about 80') for the recirculating hot water is consuming about 10kWh / day. That's about $18 / month. This huge waste of energy is due to the heat loss of the water pipes, even though they are insulated. I do have a timer, but it's only off between 1:00PM - 5:00AM.
I am considering a second water heater at the far end of the home. I do have the home wired for manual switches to "one-shot" the circ pump.
There are other solutions as well: