Preformed Circular Finstrip® Air Duct Heater

Preformed Circular Finstrip® Air Duct Heater
  • Rust-Resisting Iron or MONEL® Sheath and Fins
  • 1,950 - 5,000 Watts
  • 120 and 240 Volt
  • Single Phase
  • Third-party certifications: UL Recognized, CSA

  • Heat moving Air or Gas in Round Ducts
  • Booster Heater in Process and Comfort Heating Ducts
  • Convert existing Forced Air Dryers and Ovens

Selection Guidelines

Maximum Work Temperatures — Finstrip® elements can generally be used in the following applications at maximum temperatures, without exceeding their capability, if properly installed according to instructions packed with heaters.

Air Velocity (ft/sec.) Max. Outlet Air Temp. (°F)
Iron Sheath MONEL® Sheath
4 250
9 150 370
16 250 450

Note — Maximum temperatures are based on 25 W/In2. If elements have a lower watt density, work temperature may be increased; if watt density is higher, work temperature should be lower.

Note — See Allowable Watt Density & Heater Selection Graphs G-107S and G-108S in the Technical section of this catalog.

Durability is assured by rugged Chromalox strip heater with locked-on fins.

Rapid Heat Transfer to air from large finned area.

Nested Elements — Elements may be nested.

Open Construction — Requires mounting brackets to be fabricated by user.

Refer to Catalog Page (in the Resources Tab) to right for Air Velocity Selection.

Select Parameters
Sheath Material
Clear Parameters
Select a Part
Part # Description  
255548 KSEF-24 120V 1950W Buy Now
255556 KSEF-24 240V 1950W Buy Now
255564 KSEF-30 120V 2500W Buy Now
255572 KSEF-30 240V 2500W Buy Now
255580 KSEF-36 240V 3100W Buy Now
255599 KSEF-43 240V 3700W Buy Now
255601 KSEF-240M 120V 1950W Buy Now
255610 KSEF-240M 240V 1950W Buy Now
255628 KSEF-300M 120V 2500W Request a Quote
255636 KSEF-300M 240V 2500W Buy Now
255644 KSEF-360M 240V 3100W Buy Now
255652 KSEF-430M 240V 3700W Buy Now
255660 KSEF-480M 240V 4000W Buy Now
255679 KSEF-540M 240V 4500W MKL Buy Now
256911 Request a Quote
Can't find what you're looking for?