Modine's HSB24 is a high grade hot water/steam unit heater that can be fitted into a new or already existing hydronic system with ease. The HSB24 can emit 24,000 BTU/hr of heating power with a powerful fan behind it for air propulsion. High grade steel is used for the casing to ensure durability and longevity. Designed for horizontal use, the unit heater is excellent for heating long corridors or blanketing walls with heat. The HSB24 has supply and return connections on the top and bottom of the unit, allowing it to be installed facing any direction. Product Information: General Information: Performance: Electrical Data: Dimensions: Product Assurance: