STjh 20 kW eight-inch flanged duct heater with a finned-element bundle and terminal enclosure on white.

STJH-FLANGED-DUCT-ELECTRIC-HEATER-20KW

Flanged Duct Electric Heater 20 kW Eight-Inch

A 20 kW eight-inch flanged duct heater using 24 finned elements at a low 3 W/in2 surface loading.

20 kW heating capacity
24 finned elements
3 W/in2 low watt density

Request a Quote Browse Products

Product Introduction

This final-stage heater spreads 20 kW across 24 finned elements on an eight-inch flange. The low 3 W/in2 loading moderates element surface temperature for sensitive clean process air and downstream temperature trim.

Key Features

Gentle final-stage heating

Low surface loading supports controlled air-temperature trim without concentrating heat on a few elements.

Dense element distribution

Twenty-four elements spread output across the flow path for more even heat input.

Eight-inch flanged service

The assembly bolts into a matching duct or circulation-heater housing as a removable stage.

Technical Parameters

Heating Capacity	20 kW
Flange Size	8 in
Element Count	24
Watt Density	3 W/in2
Element Type	Finned electric elements
Heating Role	Low-density final stage
Airflow Requirement	Continuous proven airflow during heating
Control	Staged or modulating power option
Installation	Flanged duct or circulation housing
Customization	Voltage, controls and element sheath can be configured for the intended application and operating environment.

Applications

Sensitive clean process-air trim, final duct heating, controlled drying air and low-surface-temperature air systems.

Solutions for Your Application

High element surface temperature could overheat sensitive process air or deposits.Use the 3 W/in2 loading and interlock heat to proven airflow.

Uneven heat across the duct creates hot and cold zones downstream.Distribute the 24 elements across the active flow area and provide adequate mixing distance.

Available Options

Sheath alloy, supply voltage, power stages, SCR control, airflow switch, high-limit sensors and terminal enclosure can be selected.

Planning a Flanged Duct Electric Heater 20 kW Eight-Inch specification?

Send us your dimensions, installation conditions, performance targets and required surface finish.

Talk to Our Team