125X Technical Support
Online Technical Support from Bosch Water Heaters
 
   
   Specifications

Power Input

Natural Gas: 28,000 - 117,000 Btu
LP Gas: 28,000 - 117,000 Btu

Minimum Flow to Activate

0.5 gallons per minute (gpm)

Flow Rates

45°F rise @ 3.7 gpm
90°F rise @ 1.8 gpm

Dimensions

Height: 29.75"
Width: 18.25"
Depth: 8.75"

Weight

40 lbs.

Modulating Gas Valve

Yes

Ignition

Electronic Pilot

Optional Accessory

Power Vent for Horizontal Venting (AQ1)

   Installation Specifications

Gas Connections ½" Male NPT
Water Connections ½" Male NPT
Natural Gas Pressure Minimum: 7" WC
Maximum: 14" WC
LP Gas Pressure Minimum: 11" WC
Maximum: 14"
Water Pressure Minimum: 18 PSI
Maximum: 150 PSI
Electrical Supply None
Vent Size 5"
Vent Termination

Vertical or Horizontal

 

   
125X Tech Support
 

Note: Specifications and product information subject to change without notice.