Sterling sus-2 Suntemp 2 Foot Baseboard Heater with 3/4 Inch Hydronic Element 700-A1

Product Description

The Sterling sus-2 Suntemp baseboard heater is a complete 2-foot hydronic baseboard unit designed for residential and light commercial heating applications. It ships ready to install and includes a 3/4 inch hydronic element rated to deliver 1,120 net BTU per hour at 180 degrees water temperature with a 1 gallon per minute flow rate. This makes it a reliable choice for plumbers and HVAC technicians installing or replacing hot water baseboard heating systems. The unit measures 2-13/16 inches in depth and stands 7-7/8 inches tall, giving it a slim, low-profile footprint that fits neatly along walls and under windows. The cabinet arrives painted white, making it easy to match standard interior finishes without additional prep work. At 5 pounds, it is lightweight enough for a single installer to handle and mount without extra equipment. The sus-2 corresponds to the 700-A1 element series, which is widely used in residential hydronic heating loops. Hydronic baseboard heaters like the sus-2 work by circulating hot water from a boiler through a copper-fin tube element. The fins radiate heat into the room through natural convection, providing quiet, even warmth with no forced air and no blower noise. This system type is common in older homes and multi-family buildings throughout the Northeast and Midwest. The sus-2 is a drop-in replacement for damaged or undersized sections in existing baseboard runs. Note that a splice plate is not included and must be sourced separately if you are joining sections. Installers should confirm boiler output temperature and flow rate match the unit specifications before installation to ensure rated performance.

• Delivers 1,120 net BTU per hour at 180 degrees water temperature and 1 gallon per minute flow rate
• Complete 2-foot hydronic baseboard unit with 3/4 inch copper-fin tube element included
• Painted white cabinet, 2-13/16 inches deep and 7-7/8 inches tall, weighs 5 pounds

Product Highlights

The Sterling sus-2 is a ready-to-install 2-foot hydronic baseboard heater with a built-in 3/4 inch element, suited for hot water heating systems in residential and light commercial settings. Its compact size and white finish make it a practical replacement or new-installation choice for HVAC and plumbing professionals.

Product Information

Standard Information

• Brand: STERLING
• Manufacturer Part Number: sus-2

Technical Specifications

• Series: 700-A1
• Length: 2 feet
• Element Size: 3/4 inch
• Net BTU Output: 1,120 BTU per hour
• Rated Water Temperature: 180 degrees Fahrenheit
• Rated Flow Rate: 1 gallon per minute
• Depth: 2-13/16 inches
• Height: 7-7/8 inches
• Finish: Painted White
• Weight: 5 pounds
• Splice Plate Included: No