tankless vs boiler

Discussion in 'Tankless Water Heater Forum' started by essentialagenda, Aug 25, 2008.

  1. essentialagenda

    essentialagenda New Member

    Messages:
    2
    Hi,

    can someone tell me what the difference is between a wall hung tankless water heater and a wall hung boiler? and when would one use one vs the other?

    thanks
  2. jadnashua

    jadnashua Retired Defense Industry Engineer xxx

    Messages:
    22,266
    Location:
    New England
    A tankless system is designed for producing potable hot water instead of a conventional water heater. A boiler is designed to provide heat to a dwelling. A side benefit is the ability to heat a tank of water using a zone and an indirect water heater tank.

    A tankless system, because it is heating water as it passes through and then dumped down the drain, won't get the water hot enough for many space heating purposes. A boiler, because it can recirculate the water is able to produce much hotter water, typically required for radiators.
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