that it's more energy-efficient just leave the totmrhseat on the same temperature all the time as it saves the energy it takes the furnace to reset.I say that it's more efficient to adjust the temperature and turn the totmrhseat off when we aren't home because then it's not running when it's not needed. Which of us is right? Or are we both wrong? I'd like to know, but please cite a source if you can. Thank you!