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The SLANT-FIN 57188101050 is a 5-foot hydronic baseboard heater from the Multi/Pak 88 series, designed for residential and light commercial hot water or steam heating systems. It ships fully assembled with a 3/4-inch H3 heating element in a Nu-White finish. Output ranges from 590 to 790 BTU/h per foot at 180 degrees F and 1 GPM flow, making it well-suited for zones requiring reliable convective heat in limited wall space. Licensed plumbers and HVAC technicians are the primary installers. The pivot-mounted damper is fully modulating, allowing individual room temperature adjustment without additional controls or damper hardware.
This unit fits single-family residential renovations and light commercial applications where wall space is limited or higher output than standard baseboard is needed. The 2-inch floor-to-front cover opening promotes natural air circulation for effective convection. Extendable accessories allow wall-to-wall installation without field cutting. Flared element tubes facilitate joining multiple sections in longer runs, and the design supports higher water velocities, lower pump loads, and longer loop runs compared to standard residential baseboard.
Designed for use with hot water or steam baseboard heating systems in residential and light commercial applications. Compatible with Slant/Fin H-Series heating elements. Suitable as a standalone zone heater or as a supplement to existing Slant/Fin residential baseboard installations.
Installation is typically performed by a licensed plumber or hydronic heating technician. Shut off the boiler and isolate the zone circuit before making any pipe connections. Follow local mechanical codes and IFGC or IPC requirements for hydronic system piping and support. Do not energize the system until all connections are pressure-tested and confirmed leak-free.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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