Indirect Water Heaters – All You Need to Know About

Indirect water heaters are not new, they have been around for decades. However today, with growing concern for the environment and rising energy costs, indirect units are enjoying renewed popularity.

For some homeowners in certain parts of the country, indirect water heating can deliver a powerful one-two punch of energy use reduction and cost savings. In fact, according to the Department of Energy, under ideal circumstances indirect water heaters are “the least expensive means of providing hot water” to the point-of-use fixtures you rely on every day, multiple times a day.

Given that water heaters consume a lot more energy than most people think, more energy than most other household appliances combined—opting for a high-efficiency solution can go a long way toward improving your bottom line, especially over the long term.

If your home ranks among the relative few with hydronic baseboard, radiator, or in-floor radiant heating, when you install an indirect unit, the boiler drives both systems, heating the house and the water.

KEY TAKEAWAYS:

  • There are obviously significant benefits associated with running only one power-devouring major appliance instead of the usual pair.
  • The key distinction is that the efficiency of an indirect water heater equals the efficiency of the boiler, and boilers typically outperform most water heaters.
  • With forced-air HVAC equipment dominating the market, boilers are increasingly rare.
  • “To understand its ingenious design, the first thing to know is that an indirect water heater is, in essence, little more than a well-insulated storage tank that holds a coiled heat exchanger, though a less common version relies on a tank-in-tank design.”

    Original Source: http://www.bobvila.com/articles/indirect-water-heaters/

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