125BL Technical Support
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   Specifications

Power Input

Natural Gas: 60,000 - 117,000 Btu
LP Gas: 60,000 - 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

Energy Factor

NG: .64  LP: .79

Thermal Efficiency

NG: 80%  LP: 86%

Dimensions

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

Weight

44 lbs.

Modulating Gas Valve

Yes

   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" WC

Water Pressure

Minimum: 18 PSI
Maximum: 150 PSI

Electrical Supply

 

Vent Size

5"

Vent Termination

Vertical

   
125BL Tech Support
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Note: Specifications and product information subject to change without notice.