Mestek hsb06011 Hydronic Steam Unit Heater 43600 Btu/h

Product Description

The MESTEK hsb06011 is a horizontal hydronic and steam unit heater designed for forced-air heat distribution in commercial and industrial spaces. Rated at 43,600 BTU/h output at 200 degrees F entering water temperature, it delivers 900 CFM of heated airflow through a copper tube coil with fan guard. The unit runs on a 120-volt, 25-watt totally enclosed motor with thermal overload protection, providing reliable operation in dusty or demanding environments. Connections are 1-1/4 inch FPT on both inlet and outlet. Maximum working pressure is 150 psi. Unit weight is 41 pounds.

This unit heater is suited for hydronic hot water or steam heating systems in applications such as warehouses, garages, loading docks, mechanical rooms, and light industrial facilities. It mounts horizontally to direct airflow where needed. The copper tube heat exchanger is compatible with both hot water and low-pressure steam distribution systems. Installation is typically performed by licensed plumbers or HVAC mechanics familiar with hydronic piping and unit heater mounting.

Key Features

• 43,600 BTU/h output rating at 200 degrees F entering fluid temperature
• 900 CFM airflow with integrated fan guard
• Copper tube heat exchanger for hydronic or steam service
• 120-volt totally enclosed motor with thermal overload protection
• 1-1/4 inch FPT inlet and outlet connections
• Rated for up to 150 psi maximum working pressure

Compatibility

Designed for use in horizontal hydronic hot water or steam heating systems with 1-1/4 inch FPT supply and return piping up to 150 psi working pressure.

Installation Notes

Installation should be performed by a licensed HVAC mechanic or plumber in accordance with local mechanical codes and IFGC or IPC requirements as applicable. Shut off and isolate the hydronic or steam supply and allow the system to depressurize and cool before making piping connections. Ensure structural mounting is adequate to support the 41-pound unit weight plus pipe loads. Verify electrical supply matches the 120-volt motor rating before energizing.