Bottom Line: With the top GPM, impressive BTUs, and Smart Sense technology, this versatile, energy-efficient model can do it all and save you money in the long run. Pros: The Versa Vent and Smart ...

Tankless water heaters have always been full of promise. By heating water only when you need it, the suitcase-sized units could potentially save homeowners lots of energy and a bit of storage space, ...