Bosch has manufactured the propane gas tankless water heater model 520 HN LP with 5.3 GPM capacity. The Therm 520 HN NG 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. With a maximum input of 117,000 BTU, the unit supplier endless hot water for up to 2 applications at a time.
| Bosch 520 HN LP Tankless Water Heater Specifications |
| Item | Water Heater |
| Type | Tankless |
| Gas Connection (In.) | 3/4 |
| Gas Type | LP |
| Input (BTU) | 117,000 |
| Ignition Type | Hydro-Generated |
| Draft Hood Size (In.) | 5 |
| Energy Factor | 0.80 |
| Depth (In.) | 8-1/2 |
| Width (In.) | 16-3/4 |
| Height (In.) | 25-3/4 |
| Water Connection (In.) | 1/2 |
| GPM @ 45F Rise | 4.2 |
| GPM @ 90F Rise | 2.1 |
| Manufacturers Warranty Length | 15 Year Heat Exchanger And 3 Year Parts |
| Standards | CSA And ANSI Z21.10.4 |
| Compliance | Certified For Use In Potable Water Applications in CA and VT |
| Includes | Mounting Bracket |
Bosch 520 HN LP Gas Tankless Water Heater 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 up to 2 applications 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 LP