Tankless models heat water on demand ... like unclogging a sink drain or replacing a leaky toilet flapper, are relatively easy; installing a water heater is a great deal more complex.

This is the product's overall performance score, based on data collected from WELS (Water Efficiency Labelling and Standards) along with a variety of popular retailer sites.

This is the product's overall performance score, based on data collected from WELS (Water Efficiency Labelling and Standards) along with a variety of popular retailer sites.