Maybe one thing that would prove useful would be a pipe-heating system. Heating the pipes would also heat the water inside them. Another use for this would be h

Maybe one thing that would prove useful would be a pipe-heating system. Heating the pipes would also heat the water inside them. Another use for this would be homes in colder climates where the house's pipes are likely to freeze on a cold winter's night and burst when someone turns on a faucet.