Bosch Tankless Water Heaters
by Bosch are fueled by Propane (LP) or Natural Gas
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These Bosch Therm Gas Tankless Water Heaters is only sold to Licensed Installers.
For Licensed Installers - click here to purchase the Bosch Pro Gas Tankless Water Heaters
For Retail Bosch Tankless Water Heater - Click Here!
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Bosch 330PN
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Bosch Therm 330PN
The Bosch Therm 330 PN model offers Piezo push-button ignition and utilizes a modulating gas valve to
ensure a constant temperature at varying flow rates. The 330 PN is the perfect tankless for smaller
families and households that use one hot water application at a time.
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Bosch 520PN
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Bosch Therm 520PN
This Bosch Therm 520 PN model offer Piezo push-button ignition and utilizes a modulating gas
valve to ensure a constant temperature at varying flow rates. The 520 PN is the perfect
tankless solution for smaller families and households that only use no more than two hot
water applications at a time.
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Bosch 520HN
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Bosch Therm 520HN
The Therm 520 HN incorporates an evolutionary hydro-power ignition system which allows this
tankless water heater to work without a standing pilot, grid connection or battery! A small
turbine inside the water heater uses the energy from the flowing water to ignite the burner.
The modulating gas valve then maintains a constant temperature at varying flow rates. This
innovative technology, patented by Bosch, makes this an ideal product for installations
without access to electricity or regions prone to inclement weather and power outages.
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Bosch 660EF
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Bosch Therm 660 EF
The Therm 660 EF is compact enough to install virtually anywhere. But don’t let the size fool
you. This model is loaded with features including freeze protection and built-in high temperature
capability (160°F).
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Bosch 660EFO
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Bosch Therm 660 EFO
The Therm 660 EFO is Bosch's most compact outdoor model and is loaded with features you’d
expect from Bosch, including freeze protection and built-in high temperature capability (160°F).
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Bosch 715ES
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Bosch Therm GWH 715 ES
Bosch's Pro 715 ES, is the highest capacity non-condensing model was designed to meet the demands of
busy households, and offers premium features you expect from Bosch. This model can be installed almost
anywhere thanks to its sealed combustion and dual-fan technology
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Bosch 800ES
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Bosch Therm GWH C 800 ES / Condensing
The Bosch GWH C 800 ES model is another top performing, fully condensing gas tankless water heater
from Bosch. This model offers high flow rates, efficiency and the most advanced features in
tankless technology, yet requires only 199,000 BTU/Hr input.
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Bosch 830ES
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Bosch Therm 830 ES
The Bosch 830 ES is another model from Bosch that offers advanced software, safety and precision
controls but requires only 175,000 BTU/Hr input. The 830 ES is ideal for busy households yet is
also designed to support Intelligent Cascading, up to 24 units for larger homes
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Bosch 1210ES
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Bosch Therm 1210 ES / Condensing
This is the highest performance, fully condensing gas tankless water heater from Bosch. Unlike
traditional non-condensing models, condensing technology captures heat from the exhaust gas and
uses it to preheat the incoming cold water. This increases efficiency and reduces emissions –
well ahead of the 2012 Low NOX emissions standards set by SCAQMD (California’s South Coast Air
Quality Management District).
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