Specifications

​

Heat Capacity (input)

• Natural gas 10,000 - 150,000 BTU/h

Propane

• 10,000 - 150,000 BTU/h

Efficiency Ratings

• UEF (NG & LP)0.95

Flow Rate (DHW)

• 35°F temp rise 8.4 GPM (31.8 l/m)

• 45°F temp rise 6.5 GPM (24.6 l/m)

• 67°F temp rise 4.3 GPM (16.3 l/m)

Dimensions

• 17.3" W x 27.4" H x 13.2" D (43.9cm W x 69.6cm H x 33.5cm D)

Boiler Weight

• 73 lbs (33.1 kg)

Installation Type

• Indoor or outdoor wall-hung

Venting Type

• Forced draft direct-vent

Ignition

• Electronic ignition

Water Pressure

• 15-150 PSI (1.055-10.545 kg/cm2)

Natural gas supply pressure (from source) 3.5 " WC to 10.5 " WC

Propane gas supply pressure (from source) 8 " WC to 13 " WC

Natural gas manifold pressure (min-max) -0.03 " WC to -0.55 " WC

Propane gas manifold pressure (min-max) -0.02 " WC to -0.55 " WC

Minimum Flow Rate

• 0.5 GPM (1.893 l/m), < 0.01 GPM (0.04 l/m) option*

Connection Sizes

• Cold water inlet 3/4"

• Hot water outlet size 3/4"

• Gas inlet 3/4"

Power Supply

• Main supply 120V AC, 60 Hz

Maximum Power Consumption

• 200 W (max 2 A), 350 W (max 4 A) with external pump connected

Materials Casing

• Cold-rolled carbon steel

Heat Exchangers

• Primary heat exchanger: stainless steel

• Secondary heat exchanger: stainless steel

Venting

• Exhaust2" or 3" PVC, CPVC, approved polypropylene and stainless steel 2" or 3" special gas vent type BH (Class II, A /B/C)

• Intake2" or 3" PVC, CPVC, approved polypropylene and stainless steel 2" or 3" special gas vent type BH (Class II, A /B/C)

Vent Clearances

• 0" to combustibles

High Elevations

• 10,100 feet for both NG or LP gas. Please refer to Installation Manual for additional details and instructions.

Safety Devices

• Flame rod, APS, ignition operation detector, water temperature high limit switch, exhaust temperature high limit sensor, power surge fuse, burner high limit fuse, vent installation detector (VID)