Dayton suspended horizontal hydronic heaters provide primary or supplementary heating by pushing and spreading the heated air. They are suspended from a wall or ceiling to spread the air evenly. These units store water which is then heated by passing a current through serpentine coils and circulated with a maximum rate of 150 PSI. They feature a totally enclosed motor which is capable of producing a maximum power output of 25W. They are ETL & ETLc listed and comply with OSHA standards for safe use. Choose from a wide range of these heaters, available in 245, 500, 580 and 850 CFM airflow ratings on Raptor Supplies.