Reznor ws23/33 Ws Series Single-phase Hydronic Unit Heater 115V 330 to 500 Cfm

Product Description

The Reznor WS23/33 is a single-phase hydronic unit heater built for commercial heating applications. It runs on 115 VAC and delivers airflow between 330 and 500 CFM, making it well-suited for warehouses, garages, workshops, and other large commercial or light-industrial spaces. This unit operates on a steam or hot water system, drawing heat from a boiler and distributing warm air through the space using a motor-driven fan. The motor output ranges from 0.02 to 0.055 horsepower, and the unit draws 0.9 amps at its rated voltage. The WS23/33 is part of the Reznor WS Series, a line engineered to combine reliable heating performance with a clean, low-profile appearance that works well in visible ceiling or suspended installations. The steel cabinet is finished with a galvanized fan guard for added durability and corrosion resistance. Hydronic unit heaters like the WS23/33 are a preferred choice for HVAC contractors and mechanical engineers who need consistent, efficient heat output without combustion on-site. Because the heat source is a remote boiler, these units are safe for use in areas where open-flame or gas-fired equipment is not permitted. The compact cabinet measures 16-7/16 inches wide by 16-7/16 inches tall by 18-5/16 inches deep, allowing it to be suspended from a ceiling or overhead structure with minimal footprint. Installation is straightforward for experienced HVAC technicians familiar with hot water or steam piping systems. The unit is designed for suspended mounting, keeping floor space clear while delivering effective heat distribution across the target area.

• Operates on 115 VAC single-phase power with a 0.9 amp draw
• Delivers 330 to 500 CFM airflow for effective heat distribution in commercial spaces
• Steel cabinet with galvanized fan guard for durability in demanding environments

Product Highlights

The Reznor WS23/33 is a reliable, suspended hydronic unit heater designed for commercial and light-industrial heating using steam or hot water systems. Its compact steel build, single-phase operation, and clean appearance make it a practical choice for HVAC professionals working on commercial heating projects.

Product Information

Standard Information

• Brand: REZNOR
• Manufacturer Part Number: WS23/33

Technical Specifications

• Series: WS Series
• Type: Single-Phase
• Voltage Rating: 115 VAC
• Amperage Rating: 0.9 A
• Horsepower: 0.02 to 0.055 hp
• Flow Rate: 330 to 500 CFM
• Width: 16-7/16 inches
• Height: 16-7/16 inches
• Depth: 18-5/16 inches
• Material: Steel
• Fan Guard Type: Galvanized