Hot water and efficiency are just a click away with Marty’s phone tied to the family’s hybrid-electric, heat-pump water heater: “The control of this thing is amazing. You can turn it off remotely when you’re away. And the electricity usage is stunningly low: we saw a 75% reduction in demand (aka kilowatts) right off the bat. Anyone with a gas water heater should save money by putting one in and it’s a simple swap-out for those with an electric water heater.”