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Bosch tankless water heater sale FREE SHIPPING AN ALL ORDERS IN THE CONTINENTAL US on all ductless mini split air conditioning units and tankless water heaters . ALASKA, HAWAI AND CANADA CALL FOR PRICING 		Eco Air and Water  :: Tankless Water Heaters :: 117,000 BTU 4.25 GPM Outdoor Propane ProTankless™

117,000 BTU 4.25 GPM Outdoor Propane ProTankless™
117,000 BTU 4.25 GPM Outdoor Propane ProTankless™
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BOSCH GWH 425 HNO Install your tankless water heater outside! The Bosch ProTankless™ GWH 425 HNO incorporates the same revolutionary hydro-generated ignition system as the GWH 425 HN, allowing the water heater to operate without a standing pilot or electricity. However, the Bosch ProTankless ™ GWH 425 HNO is equipped with built-in freeze protection which does require electricity
         
 
SKU: Bosch 425 HNO LP Hydro Pilot
Delivery Time Call for Availability 1 888 346-6330
Price: $855.00

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  • Installs outside – built-in freeze protection to 5°F

  • Thermal efficiency: 80% NG / 83% LP

     

    Download Installation Manual (PDF)    

     Frequently Asked Questions 

      

     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
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    Model/Product
    Energy Factor
    Annual Cost
    to Operate*
    Annual
    Savings¹
    Annual
    Savings²
    635 ES/ESO
    0.80
    $250
    $110
    $151
    425 HN/HNO
    0.80
    $266
    $95
    $135
    425 EF
    0.78
    $273
    $88
    $129
    40-gallon tank
    0.59
    $361
     
     
    75-gallon tank
    0.53
    $410

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    Technical Specifications
    Power Input NG: 28,000 - 117,000 Btu
    LP: 28,000 - 117,000 Btu
    Minimum Flow
    Rate to Activate    		 0.5 gallons per minute (gpm)
    Flow Rates 90° F rise / 2.1 gpm
    75° F rise / 2.4 gpm
    65° F rise / 2.9 gpm
    55° F rise / 3.4 gpm
    45° F rise / 4.2 gpm
    Energy Factor NG: .85
    LP: .84
    Thermal Efficiency NG: 80%
    LP: 83%
    Dimensions 29¾"h x 18¼'w x 8¾”d
    Weight 40 lbs.
    Ignition Hydro-generated
       
    Modulating Gas Valve Yes
    Life Expectancy 20+ years
    Installation Specifications
    Gas Connection 3/4" Male NPT
    Water Connection ½" Male NPT

    NG Gas Pressure

    LP Gas Pressure

    		 Minimum: 7" WC
    Maximum: 14 " WC
    Minimum: 11" WC
    Maximum: 14" WC
    Water Pressure Minimum: 30 PSI
    Maximum: 150 PSI
    Electrical Supply None

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