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Bosch Gas Tankless Water Heaters Therm 520HN
The tankless solution for smaller residential applications
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Bosch Therm 520 HN
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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.
This Bosch Therm 520 HN Gas Tankless Water Heaters is only sold to Licensed Installers.
For Licensed Installers - click here to purchase the Bosch Therm 520 HN
For Retail Bosch Tankless Water Heater - Click Here!
Bosch 520 HN Specifications:
- Type - Non-Condensing
- Application - Residential
- Max Input (BTU) - 117,000
- Min Input (BTU) - 30,725
- Capacity at 35 (°F) Rise (gpm) - 5.3
- Capacity at 55(°F) Rise (gpm) - 3.4
- Intelligent Cascading - No
- Min Flow Rate - 0.6 gpm
- Temp Range (°F) High - Low
- Thermal Efficiency - 80%+
- Installation Options - Indoor
- Dimensions (w x h x d) - 18 ½" x 36 ¾" x 10 ½"
- Weight (lbs.) - 35
- Inlet Connection - ½" NPT
- Outlet Connection - ½" NPT
- Gas Connection - ¾" NPT
- Max Water Pressure - 150 psi
- Min Water Pressure - 13 psi
- Min NG Presure - 5.7 WC
- Venting Options - Galvanized B-Vent
- Energy Star Rated - No
Bosch 520 HN Features:
- Patented Hydro-power ignition requires no electricity
- 80%+ thermal efficiency
- 117,000 BTU maximum input
- 5.3 gallons per minute capacity at 35F degree rise
- Endless hot water for 1 application at a time
- Minimum activation flow rate of 0.6 gallons per minute
- High to low temperature control
- Vents with galvanized B vent – natural draft
- Built for durability and serviceability with 15-year warranty and 20+ year life expectancy
- Available in NG and LP models
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Bosch 520 HN PDF Manuals
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