As you celebrate Earth Day 2014, find out if you're living as "green" as you think.
The choice to go tankless when it comes to water heaters isn't a clear one. They're a lot more efficient, but houselogic.com says they also come with high upfront costs, unpredictable temperature swings and are a new and improving technology that could require a lot of maintenance.
Seoul National University/Handout/Reuters
Lucy Richardson/ Reuters
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