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. While it provides endless hot water, it saves money because it only heats water when you need hot water.
Therm 520 PN Specifications:
- Non-Condensing
- Residential Application
- 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
- Thermal Efficiency 78%+
- Installation - Indoor
- Dimensions (w x h x d) 18½" x 36¾" x 10½"
- Weight (lbs.) 35
- Inlet Connection ½" NPT
- Outlet Connection ½" NPT
- Gas Connection ¾" NPT
- Max Water Pressure 150 psi
- Min Water Pressure 30 psi
- Min NG Presure 5.7" WC
- Venting - Galvanized B-Vent
Features & Benefits:
- Piezo ignition system requires no electrical connection
- 78%+ thermal efficiency
- 117,000 BTU maximum input
- 5.3 gallons per minute capacity at 35F degree rise
- Endless hot water for up to 2 applications at a time
- Minimum activation flow rate of 0.5 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
Warranty:
- 15 year limited warranty on heat exchanger
- 2 year warranty on all other parts
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