Bosch Therm 330 PN Natural Gas

Piezo ignition system requires no electrical connection
78%+ thermal efficiency
75,000 BTU maximum input
3.3 gallons per minute capacity at 35F degree rise
Endless hot water for 1 application at a time
Minimum activation flow rate of 0.5 gallons per minute
High to low temperature control
Vents with galvanized B vent – natural draft
Built for durability and serviceability with 15-year warranty and 20+ year life expectancy
Available in NG and LP models

15 year limited warranty on heat exchanger; 3 year warranty if used in direct recirculating applications

15 year warranty on heat exchanger if used if recirculated through a storage tank such as the Ariston mini-tank

5 year warranty on all other parts

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Therm 330 PN	Specifications
Condensing/Non-Condensing	Non-Condensing
Application	Residential
Max Input (BTU)	75,000
Min Input (BTU)	30,735
Capacity at 35°F Rise (gpm)	3.3
Capacity at 55°F Rise (gpm)	2.1
Intelligent Cascading	No
Min Flow Rate	0.5 gpm
Temp Range (°F)	High - Low
Temp Stability (°F)	n/a
Default Temp (°F)	n/a
Energy Factor	-
Thermal Efficiency	78%+
Installation Options	Indoor
Dimensions (w x h x d)	12 ¼" x 22 7/8" x 8¾"
Weight (lbs.)	26
Inlet Connection	½" NPT
Outlet Connection	½" NPT
Gas Connection	½" NPT
Max Water Pressure	150 psi
Min Water Pressure	13 psi
Min NG Presure	5.7 WC
Condensing Heat Exchanger	n/a
Venting Options	Galvanized B-Vent
Vent Maximun Run	n/a
Energy Star Rated	No

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