Bosch GWH-425-HN-L Tankless Water Heater, Indoor Use


Bosch GWH-425-HN-L Tankless Water Heater, Indoor Use Ideal for households looking to maximize energy savings. New homeowners want the energy-efficient, endless supply of hot water only a gas tankless water heater can deliver. And no one has a more complete line or gives you a longer warranty than Pro Tankless by Bosch. Elegantly engineered, these units are small, lightweight, and easy to install and maintain. Patented Bosch Hydro-Generated Ignition Technology. The Bosch engineers have proven that water can indeed make fire. The pilot is ignited by a super-concentrated spark generated by a micro-turbine. The micro-turbine is activated by a request for hot water in the house. This energy efficient technology makes the 425 HN ideal for households looking to maximize energy savings. Bosch GWH-425-HN-L Tankless Water Heater, Indoor Use Features: Hydro-generated ignition 80% average efficiency Venting: 5" double-wall type B vent - natural draft Modulating gas valve - constant temperature at varying flow rates Available in natural gas (NG) or liquid propane (LP) 15-year warranty No Electricity Required Bosch GWH-425-HN-L Tankless Water Heater, Indoor Use Specifications: Gas Type: LP (Liquid Propane) Power Input - o NG: 28,000 - 117,000 Btu o LP: 28,000 - 117,000 Btu Minimum Flow Rate to Activate - 0.5 gallons per minute (gpm) Flow Rates - o 90° F rise / 2.1 gpm o 75° F rise / 2.4 gpm o 65° F rise / 2.9 gpm o 55° F rise / 3.4 gpm o 45° F rise / 4.2 gpm Energy Factor - o NG: .85 o LP: .84 Thermal Efficiency - o NG: 80% o LP: 83% Dimensions - 29¾"h x 18¼'w x 8¾"d Weight - 40 lbs. Ignition - Hydro-generated Life Expectancy - 20+ years Optional Accessories - Power Vent Kit - AQ1 Modulating Gas Valve - Yes Gas Connection - ½" Male NPT Water Connection - ½" Male NPT LP Gas Pressure - Minimum: 7" WC, Maximum: 14 " WC NG Gas Pressure - Minimum: 11" WC, Maximum: 14" WC Water Pressure - Minimum: 30 PSI, Maximum: 150 PSI Electrical Supply - None Vent Size - 5" (double-wall type B) * On a combustible wall surface the unit should be mounted away from the wall to provide adequate clearance of the vent pipe. * Not approved for use in mobile homes, boats, or RVs.