Which Tankless System Is The Most Efficient?
Tankless Efficiency Ratings All current tankless units have different efficiency ratings. They can range anywhere from 60 to an amazing 98 percent. This can of course come with some positives and Negatives. The highest rated efficiency of a tankless system is called the Navien which is 98% efficient. Since the unit uses the heat so effectively it can actually be vented with plastic pipe as the exhaust gases are at a very low...
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