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Bosch WR400-1K On Demand DHW Heater Page
Flow controlled, this modulating unit combines high efficiency with high output, plus low minimum flow rate. Output temperature may be preset to any level between 90F and 140F and the selected temperature will be maintained indefinitely (plus or minus 5F). This unit is suitable for single family residential or commercial/industrial applications.
Who Should Own One?
Technical Specifications:
Fuel Types Available: Natural Gas, Propane
Rated Input (BTU/hr.): 117,000
Minimum Input (BTU/hr.): 33,000
Thermal Efficiency/Energy Factor: 82% / .69
Fuel Consumption: 30.6 to 108.8 (CuF/hr) NG /
1.5 to 5.4 (lbs/hr) LP
Ignition Type: piezo with pilot
Max flow rate at 45F temp rise (GPM) 4.0
Max flow rate at 100F temp rise (GPM)    1.8
Minimum Flow Rate (GPM) 0.5
Dimensions 30 5/16" x 17 5/16" x 8 11/16"
Shipping Weight 44 lbs.
Flue Size 5"
Water Inlet & Outlet (NPT) 1/2 inch
Gas Inlet (NPT) 1/2 inch
Water Pressure Range 13 - 150 psi
Inlet Pressure Required 11 inches W.C. LP /
7 inches W.C. NG
NG & LP On Demand Boilers Natural Gas & Propane On Demand Boilers & DHW Heaters
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No Utility Bills Inc. All rights reserved. Last modified: 10/19/24