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Bosch GWH425HN
MSRP: $1,092.10
Price: $819.08
You Save: $273.02 (25 %)
Item Number: 18973
Manufacturer Name: Bosch
Manufacturer Part No: GWH425HNN
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Installation Manual
Installation Manual for 425HNs made after July 2006
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Interior Parts Diagram
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Technical
Specifications
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Power Input
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NG: 28,000 - 117,000 Btu
LP: 28,000 - 117,000 Btu
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Minimum Flow
Rate to Activate
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0.5 gallons per minute (gpm)
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Flow Rates
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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
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Energy Factor
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NG: .85
LP: .84
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Thermal Efficiency
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NG: 80%
LP: 83%
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Dimensions
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29¾"h x 18¼'w x 8¾”d
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Weight
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40 lbs.
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Ignition
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Hydro-generated
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Accessories
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Power Vent Kit - AQ4
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Modulating Gas Valve
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Yes
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Life Expectancy
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20+ years
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Installation
Specifications
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Gas Connection
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¾" Male NPT
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Water Connection
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½" Male NPT
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NG Gas Pressure
LP Gas Pressure
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Minimum: 7" WC
Maximum: 14 " WC
Minimum: 11" WC
Maximum: 14" WC
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Water Pressure
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Minimum: 30 PSI
Maximum: 150 PSI
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Electrical Supply
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None
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Vent Size
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5" (double-wall type B)
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Warranty: Item Must be PROFESSIONALLY INSTALLED to be eligible to receive the 15-year warranty through Manufacturer
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