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Heat Capacity (input)
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Natural gas 10,000 - 150,000 BTU/h
Propane
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10,000 - 150,000 BTU/h
Efficiency Ratings
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UEF (NG & LP)0.95
Flow Rate (DHW)
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35°F temp rise 8.4 GPM (31.8 l/m)
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45°F temp rise 6.5 GPM (24.6 l/m)
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67°F temp rise 4.3 GPM (16.3 l/m)
Dimensions
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17.3" W x 27.4" H x 13.2" D (43.9cm W x 69.6cm H x 33.5cm D)
Boiler Weight
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73 lbs (33.1 kg)
Installation Type
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Indoor or outdoor wall-hung
Venting Type
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Forced draft direct-vent
Ignition
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Electronic ignition
Water Pressure
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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
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0.5 GPM (1.893 l/m), < 0.01 GPM (0.04 l/m) option*
Connection Sizes
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Cold water inlet 3/4"
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Hot water outlet size 3/4"
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Gas inlet 3/4"
Power Supply
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Main supply 120V AC, 60 Hz
Maximum Power Consumption
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200 W (max 2 A), 350 W (max 4 A) with external pump connected
Materials Casing
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Cold-rolled carbon steel
Heat Exchangers
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Primary heat exchanger: stainless steel
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Secondary heat exchanger: stainless steel
Venting
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Exhaust2" or 3" PVC, CPVC, approved polypropylene and stainless steel 2" or 3" special gas vent type BH (Class II, A /B/C)
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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
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0" to combustibles
High Elevations
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10,100 feet for both NG or LP gas. Please refer to Installation Manual for additional details and instructions.
Safety Devices
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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)