Slant/Fin

Slant/Fin is a manufacturer of hydronic baseboard heating equipment for residential and commercial building applications. Recognized as America's largest manufacturer of baseboard heating equipment, Slant/Fin produces the heating element, enclosure, and cover systems that contractors specify for hot-water baseboard heating in new construction and renovation projects. Slant/Fin operates as part of Mestek, Inc., which acquired the baseboard assets of Slant/Fin in April 2021. The Slant/Fin product lineup spans economy residential, premium residential, light-commercial, and heavy-commercial baseboard configurations, as well as panel radiators, towel warmers, and replacement covers. For hydronic heating contractors and plumbing professionals who install hot-water heating systems, Slant/Fin baseboard components represent the domestic standard for residential and commercial hydronic terminal heat delivery, with a product range designed to match project budget, aesthetic, and load requirements.

Product Lines

Fine/Line 30 Residential Baseboard

The Fine/Line 30 is Slant/Fin's most popular residential baseboard series, designed to deliver an excellent balance of quality, performance, and cost for standard single-family and multi-family hydronic heating installations. Fine/Line 30 uses a copper tube and aluminum fin heating element with a steel cabinet enclosure in a profile sized for residential wall applications. The Fine/Line 30 series is the appropriate Slant/Fin specification for new construction and renovation residential hydronic projects where budget, availability, and proven installation performance are the primary considerations. Contractors who need a step up in enclosure robustness for premium or high-traffic residential settings may specify the Slant/Fin Multi/Pak 88 rather than Fine/Line 30.

Base/Line 2000 Economy Residential Baseboard

The Base/Line 2000 is Slant/Fin's economy residential baseboard series, designed for budget-conscious new construction and renovation applications where Fine/Line 30 quality is not required by the project specification. Base/Line 2000 is a scaled-down version of the Fine/Line 30, using the same heating element technology in a simplified enclosure to deliver hot-water baseboard heating at a reduced installed cost. The Base/Line 2000 series is suited for apartment construction, rental property renovations, and other applications where economy of installation cost takes precedence over premium cabinet finish and enclosure durability.

Multi/Pak 88 Premium Residential and Light-Commercial Baseboard

The Multi/Pak 88 is Slant/Fin's premium residential and light-commercial baseboard series, designed for applications requiring more robust enclosure construction and higher-output heating than the Fine/Line 30 provides. Multi/Pak 88 uses heavy-gauge steel construction and a tamper-resistant profile that makes it appropriate for both premium single-family installations and light-commercial settings where durability and appearance standards are higher. The Multi/Pak 88 is the correct Slant/Fin specification for applications where residential-grade Fine/Line 30 enclosure construction is not adequate and full commercial 350 Series construction is not required.

350 Series Commercial Baseboard

The Slant/Fin 350 Series is a true commercial baseboard designed for heavy-gauge steel construction, tamper-resistant design, and the heat output requirements of commercial buildings. The 350-10 is the standard commercial model with a slanted top profile and heavy-gauge steel cabinet. The 350-14 is a taller variation of the 350-10 with room for two heating elements, allowing either increased heat output or a return line in the same enclosure. The HD-850 is the most robust Slant/Fin commercial baseboard, designed for the highest-load and highest-traffic commercial applications. Contractors specifying Slant/Fin in commercial settings choose among the 350-10, 350-14, and HD-850 based on BTU load requirements, cabinet height constraints, and enclosure durability demands.

Revital/Line Replacement Covers

Revital/Line is Slant/Fin's line of universal replacement covers and end caps designed to refresh the appearance of existing baseboard heating installations without replacing the heating element itself. Revital/Line covers are engineered to fit most older and current residential baseboards from multiple manufacturers, not just Slant/Fin installations. The replacement cover approach allows contractors and homeowners to update the appearance of aged or damaged baseboard enclosures at a fraction of the cost of a full baseboard replacement. Revital/Line is the appropriate Slant/Fin specification when the heating element is functioning correctly but the enclosure cover is damaged, discolored, or aesthetically outdated.

Why Contractors Specify Slant/Fin

Slant/Fin is recognized as America's largest manufacturer of baseboard heating equipment, a market position that reflects decades of consistent product availability and contractor adoption in the residential and commercial hydronic heating segment. Slant/Fin baseboard products are manufactured to meet the standard residential and commercial hydronic system water temperatures typically used in hot-water baseboard systems. The product line's range from economy Base/Line 2000 through heavy-commercial HD-850 allows contractors to specify Slant/Fin across project types without switching manufacturers. Slant/Fin operates under Mestek, Inc., a diversified HVAC manufacturer that also produces boilers and radiant heating equipment, supporting the product infrastructure required for consistent parts and service continuity.

How to Choose a Slant/Fin Product

The most important decision variable when specifying Slant/Fin baseboard is the application type: residential standard, residential premium, light-commercial, or heavy-commercial. Each tier of the Slant/Fin lineup corresponds to a specific level of enclosure construction and heat output capability, and selecting the correct series avoids both over-specification and under-specification.

For standard residential new construction and renovation, the Slant/Fin Fine/Line 30 covers the majority of single-family and multi-family applications. For budget-driven residential projects, the Base/Line 2000 delivers hot-water baseboard heating at a lower installed cost in the same heating element technology. For premium residential installations or light-commercial buildings, the Multi/Pak 88 provides heavier enclosure construction.

How to size Slant/Fin baseboard: BTU output is determined by the element length and the hot-water supply temperature. Slant/Fin publishes rating tables for each product line that provide output in BTU per linear foot at various entering water temperatures, typically from 140 to 200 degrees Fahrenheit. The total BTU load for the room divided by the BTU per linear foot at the system's design water temperature determines the required element length.

For commercial applications, which Slant/Fin 350 Series model is right depends on the required BTU output, cabinet height constraints (the 350-14 is taller to accommodate dual elements), and the traffic and durability demands of the space. The HD-850 is appropriate for highest-load commercial applications.

For existing installations with damaged or outdated enclosures, Revital/Line replacement covers offer a cost-effective cosmetic upgrade when the heating element itself does not need replacement.

FAQs

Where are Slant/Fin baseboard products manufactured?

Slant/Fin baseboard products are manufactured in the United States. Slant/Fin operates under Mestek, Inc., which acquired the Slant/Fin baseboard assets in April 2021. Slant/Fin is recognized as America's largest manufacturer of baseboard heating equipment.

What warranty does Slant/Fin offer on baseboard heating products?

Slant/Fin offers warranty terms on its baseboard heating products. Contractors should request current warranty documentation through the authorized Slant/Fin distributor at the time of purchase, as terms may vary by product line.

What is the difference between Slant/Fin Fine/Line 30 and Multi/Pak 88 baseboard?

The difference between Slant/Fin Fine/Line 30 and Multi/Pak 88 is enclosure construction and application tier. Fine/Line 30 is the standard residential series offering a balance of quality, availability, and cost for most single-family and multi-family projects. Multi/Pak 88 uses heavy-gauge steel construction and a more robust enclosure profile designed for premium residential installations and light-commercial applications where higher durability and a more substantial appearance are required.

How do I size Slant/Fin baseboard for a room?

Sizing Slant/Fin baseboard requires dividing the room's calculated BTU heat loss by the BTU output per linear foot of the specified Slant/Fin series at the system's design water temperature. Slant/Fin publishes BTU output tables for each product line at water temperatures from 140 to 200 degrees Fahrenheit. The required element length increases at lower water temperatures and decreases at higher temperatures, which is the primary variable in condensing boiler system designs that operate at lower supply temperatures.

What is the difference between Slant/Fin 350-10 and 350-14 commercial baseboard?

The difference between Slant/Fin 350-10 and 350-14 is cabinet height and heating element capacity. The 350-10 is the standard-height commercial baseboard with a single heating element. The 350-14 is a taller variation of the 350-10 with room for two heating elements, allowing either increased BTU output for higher heating loads or installation of both a supply and return line within the same enclosure footprint.

Can Slant/Fin Revital/Line covers be used on non-Slant/Fin baseboard?

Slant/Fin Revital/Line replacement covers are designed to fit most older and current residential baseboards, including baseboard from manufacturers other than Slant/Fin. Contractors should verify dimensional compatibility by checking the Revital/Line sizing guide against the existing baseboard enclosure profile before ordering, as cover width and height must match the existing element to achieve the correct fit and airflow performance.