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Bosch Therm gas and propane tankless water heaters and Bosch Powerstream electric tankless water heaters.

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Tankless Water Heater Replacement Parts

GlobalTowne sells replacement parts for all Bosch, Takagi and AO Smith gas, propane and electric tankless water heaters and electric mini-tanks. We list the most common Bosch, Takagi and AO Smith heat exchangers, water valves, gas valves, control boards, control boxes and hydrogenerator on this page. Call us at 888.726.9752 for pricing and availability on all other Bosch, Takagi and AO Smith parts.

8 Item(s)

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  1. Bosch Ariston GL6+ Thermostat Retrofit Kit (#7738006447)

    Ariston GL6 Plus Thermostat Retrofit Kit (#7738006447)

    Bosch Ariston GL6Plus Thermostat Retrofit Kit (#7738006447) Learn More

    Regular Price: $209.95

    Special Price: $159.95

    Details
  2. Bosch Ariston GL2.5/GL4 Thermostat Retrofit Kit (#7738006446)

    Ariston GL2.5/GL4 Thermostat Retrofit Kit (#7738006446)

    Bosch Ariston GL2.5/GL4 Thermostat Retrofit Kit (#7738006446) Learn More

    Regular Price: $149.95

    Special Price: $119.95

    Details
  3. Bosch Ariston GL6+S Kit for GL6+S / GL8TiS / ES8

    Ariston GL6+SKit for GL6+S / GL8TiS / ES8

    Bosch Ariston GL6+S Kit for GL6+S / GL8TiS / ES8 Learn More

    Regular Price: $169.95

    Special Price: $114.95

    Details
  4. Bosch Ariston GLS Kit for GL2.5S/GL4S/ES2.5/ES4

    Ariston GLSKit for GL2.5S/GL4S/ES2.5/ES4

    Bosch Ariston GLS Kit for GL2.5S/GL4S/ES2.5/ES4 Learn More

    Regular Price: $129.95

    Special Price: $99.95

    Details
  5. Bosch Ariston GL6PLUS-S Thermostat (#87387044420)

    Ariston GL6PLUS-S Thermostat (#87387044420)

    Bosch Ariston GL6+S Thermostat (#87387044420) Learn More

    Regular Price: $129.95

    Special Price: $79.95

    Details
  6. Bosch Ariston GL6+ Kit

    Ariston GL6+ Kit

    Bosch Ariston GL6+ Kit Learn More

    Regular Price: $102.95

    Special Price: $69.95

    Details
  7. Bosch Ariston GL Kit for GL2.5/GL4/GL2.5Ti/GL4Ti

    Ariston GLKit for GL2.5/GL4/GL2.5Ti/GL4Ti

    Bosch Ariston GL Kit for GL2.5/GL4/GL2.5Ti/GL4Ti Learn More

    Regular Price: $74.95

    Special Price: $49.95

    Details
  8. Bosch Ariston GL2.5S/GL4S/ES2.5/ES4 Thermostat (#87387044410)

    Ariston GL2.5S/GL4S/ES2.5/ES4 Thermostat (#87387044410)

    Bosch Ariston GL2.5S/GL4S/ES2.5/ES4 Thermostat (#87387044410) Learn More

    Regular Price: $76.95

    Special Price: $39.95

    Details

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  1. Bosch Ariston (8)
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