Originally posted by: Philippine Mango
Originally posted by: PhasmatisNox
Install a heat exchanger to heat the bathroom. You can take advantage of the solid matter's energy too if you install an auger.
Would this require "energy"? I'm just thinking of all the things we do every day and how much energy we waste when it could be put to good use. Like that one bicycle light that is powered by you moving the bike, if you could take advantage of the energy from walking or bicycling, we would have tons of energy.