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.
- Piezo ignition system requires no electrical connection
- 78%+ thermal efficiency
- 117,000 BTU maximum input
- 5.2 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
- Available in NG and LP models
15 year limited warranty on heat exchanger.2 year warranty on all other partsWe service and provide replacement parts.