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Bosch ProTankless GWH425PN

MSRP: $841.50
Price: $631.13
You Save: $210.37 (25 %)
Item Number: 43029
Manufacturer Name: Bosch
Manufacturer Part No: GWH425PN

GWH425PN_Installation Manual

Interior Parts Diagram

Power Vent Manual


Standing pilot, no electricity required for the GWH 425 PN model.

  • Standing pilot ignition
  • 78% average efficiency
  • Endless hot water for one major application at a time
  • 5 double-wall type B vent Natural draft
  • Modulating gas valve ensures constant temperature at varying flow rates
  • Pressure relief valve included Available in natural gas (NG) or liquid propane (LP)
  • 15-year warranty

 

 

 

   Technical Specifications

 

 

 

GWH 425 PN

Power Input

NG: 31,000-117,000 Btu
LP: 31,000-117,000 Btu

Minimum Flow to Activate (gpm)

0.5 gallons per minute (gpm)

Flow Rates

90° F rise / 2.1 gpm
77° 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: .69
LP: .79

Thermal Efficiency

NG: 78%
LP: 78%

Dimensions

H: 22¾" W: 16¾" D: 8½"

Weight

33 lbs.

Modulating Gas Valve

Yes

Ignition

Standing Pilot

Optional Accessory

Power vent for horizontal venting (AQ4)

 

Installation Specifications

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