If you want to upgrade to an energy-efficient tankless water heater, today might be the day to jump, as Amazon has the highly-rated Ecomsmart ECO 27 marked down to $360 as part of a Gold Box deal. That’s roughly $100-$140 less than usual, and a match for the lowest price ever listed.

The energy savings are all well and good, but the real kicker with a tankless heater is unlimited hot water. That means your showers will never be cut short by the dishwasher again. As with all Gold Box deals, this price is only valid today, or until sold out. [Ecosmart ECO 27 Electric Tankless Water Heater, $360]

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