tankless vs boiler

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

  1. essentialagenda

    essentialagenda New Member

    Aug 21, 2008

    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?

  2. jadnashua

    jadnashua Retired Defense Industry Engineer xxx

    Sep 2, 2004
    Retired Systems engineer for defense industry.
    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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