Unused RBI Dominator DW1500 Two-Stage Water Heater – 1500 MBH, Natural Gas

Manufacturer Information:

Manufacturer: RBI (a Mestek Company)
Model: DW1500 – Dominator Series
Serial Number: 052291036
National Board Number: 55181
CRN: 1574.9CL
Condition: Unused

Description:

Unused RBI Dominator Model DW1500 Two-Stage Water Heater, designed for commercial and industrial heating applications. Fueled by natural gas, this unit delivers 1500 MBH (440 kW) input and 1277 MBH (374 kW) output, with a high flow rate of 1530 GPH. Featuring a high-efficiency finned copper tube heat exchanger (85.1% efficiency), the heater supports ASME construction (160# max working pressure) with a 2-pass design. The sealed combustion chamber, FM-compliant gas train, and Uginox stainless steel burners make it reliable, safe, and compliant with Low NOx (SCAQMD Rule 1146.2). Includes barometric damper, pump delay control, and factory-fired testing.

Specifications:

• Model: DW1500

• Fuel Type: Natural Gas

• Input Capacity: 1500 MBH / 440 kW

• Output Capacity: 1277 MBH / 374 kW

• Flow Rate: 1530 GPH

• Efficiency: 85.1%

• Heat Exchanger Type: Finned Copper Tube, 2-Pass

• Combustion Chamber: Sealed

• Gas Train: FM Compliant

• ASME Certification: 160# Max WP

• Relief Valves Mounted: 50# for boilers, 125# for water heaters

• Firing Modes: 2 or 4-Stage

• Vent Categories: I & III

• Headers: Bronze (water heaters), Cast Iron (boilers)

• Burners: Uginox Alloy Stainless Steel

• Controls: Mounted & Wired Flow Switch, Pump Delay Control

• Compliance: SCAQMD Rule 1146.2 (Low NOx Certified)

• Testing: Factory Fired Tested

• Serial #: 052291036

• National Board #: 55181

• CRN #: 1574.9CL

Applications:

• Commercial water heating systems

• Institutional heating (schools, hospitals)

• Industrial process water heating

• Apartment and condominium water supply

• Hotels and hospitality facilities

• Car wash systems

• Central heating systems

• Large office buildings

• Equipment and tank preheating

• Food and beverage processing

What products would this be used for:

• Domestic hot water supply

• Process water heating

• High-volume potable water delivery

• Hydronic heating water

• Facility-wide central water heating

• Washdown stations

• Heated rinse or process water

• Preheat systems for equipment

• Large laundry water systems

• HVAC hot water supply