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Blog Title: Pros and cons of storage tankless water heater

Main Que: What are some pros and cons of storage tankless water heater?

  • Category: Q And A On Water Heating Systems
  • Query By: MARCIA MILES (Memphis, TN)
  • Date: 03/21/2013

Answer: "Tankless heaters Instant hot water heaters, also known as tankless water heaters are usually the size of a suitcase. They heat water on demand, whenever needed, using an electric coil or natural gas. The water passes through the heat exchanger inside and gets heated using the heating apparatus. Hence, as a result, they eliminate the risk of tank failure and also cut down on energy lost which would happen due to reheating of the water, as done in storage-tank hot water heaters. What's more, they're expensive to buy and install, and include limitations on hot-water flow rates, a possible issue in large households. And cooler incoming water in winter typically means your hot water may not be as hot as you like. Pros: -Nothing beats a tankless heater for putting out lots of hot water—it never runs out. -A tankless heater saves about 30 to 50 percent in energy costs over a conventional gas heater (minimum EF of .82 vs. .54 for conventional). -A tankless heater usually a size of a suitcase, hence it can be virtually installed anywhere and won’t take up a lot of your valuable space. Cons: -With tankless heaters, there's a lag time of three to eight seconds to fire up the burners and heat the water to the set temperature. -Installation can be a major project. -Tankless heaters must be flushed annually with special chemicals to remove scale and maintain energy efficiency. You can easily do it yourself or hire a plumber (about $125). "

  • Replied By: MARGIE RAMSEY (Thousand Oaks, CA)
  • Replied Date: 04/11/2013