Electric Duct Heaters

Electric duct heaters by industry leaders such as King Electric, Markel, Warren Technology, and Stelpro, offer a comprehensive heating solution for many different environments. Available in both open coil and finned tubular heating element design, these heaters are often used in office buildings, retail stores, warehouses, schools, hotels, and hospitals. Custom and standard units are available to provide a tailored approach to unique heating needs. With their seamless integration into existing duct systems, these heaters provide consistent warmth, energy efficiency, and optimized airflow.

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MAU4815-3-ECM-SSR 480V Make Up Air Unit
King Electric MAU ECM Series make up air unit - Proportional thermostat - Air filter/Filter Housing (Sold Separately) - 480 Volt - 15 kW - 51.2 BTU - 3 Phase - 18 Amps - 3 Element - No Internal Circuit Breaker

KINGELECTRIC33289
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MAU4818-1-ECM-SSR 480V Make Up Air Unit
King Electric MAU ECM Series make up air unit - Proportional thermostat - Air filter/Filter Housing (Sold Separately) - 480 Volt - 17.3 kW - 58.9 BTU - 1 Phase - 36 Amps - 3 Element - No Internal Circuit Breaker

KINGELECTRIC33269
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MAU4820-1-ECM-SSR 480V Make Up Air Unit
King Electric MAU ECM Series make up air unit - Proportional thermostat - Air filter/Filter Housing (Sold Separately) - 480 Volt - 20 kW - 68.3 BTU - 1 Phase - 42 Amps - 4 Element - No Internal Circuit Breaker

KINGELECTRIC33270
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MAU4820-3-ECM-SSR 480V Make Up Air Unit
King Electric MAU ECM Series make up air unit - Proportional thermostat - Air filter/Filter Housing (Sold Separately) - 480 Volt - 20 kW - 68.3 BTU - 3 Phase - 24 Amps - 4 Element - No Internal Circuit Breaker

KINGELECTRIC33290
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MAU4825-1-ECM-SSR 480V Make Up Air Unit
King Electric MAU ECM Series make up air unit - Proportional thermostat - Air filter/Filter Housing (Sold Separately) - 480 Volt - 25 kW - 85.3 BTU - 1 Phase - 52 Amps - 5 Element - 60 Amp Internal Circuit Breaker

KINGELECTRIC33271
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MAU4825-3-ECM-SSR 480V Make Up Air Unit
King Electric MAU ECM Series make up air unit - Proportional thermostat - Air filter/Filter Housing (Sold Separately) - 480 Volt - 25 kW - 85.3 BTU - 3 Phase - 30 Amps - 5 Element - No Internal Circuit Breaker

KINGELECTRIC33291
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MAU4830-1-ECM-SSR 480V Make Up Air Unit
King Electric MAU ECM Series make up air unit - Proportional thermostat - Air filter/Filter Housing (Sold Separately) - 480 Volt - 30 kW - 102.4 BTU - 1 Phase - 63 Amps - 6 Element - 60+60 Amp Internal Circuit Breaker

KINGELECTRIC33272
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MAU4830-3-ECM-SSR 480V Make Up Air Unit
King Electric MAU ECM Series make up air unit - Proportional thermostat - Air filter/Filter Housing (Sold Separately) - 480 Volt - 30 kW - 102.4 BTU - 3 Phase - 36 Amps - 6 Element - 60+60 Amp Internal Circuit Breaker

KINGELECTRIC33292
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MAU4835-1-ECM-SSR 480V Make Up Air Unit
King Electric MAU ECM Series make up air unit - Proportional thermostat - Air filter/Filter Housing (Sold Separately) - 480 Volt - 34.5 kW - 117.8 BTU - Phase - 72 Amps - 6 Element - 60+60 Amp Internal Circuit Breaker

KINGELECTRIC33273
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MAU4835-3-ECM-SSR 480V Make Up Air Unit
King Electric MAU ECM Series make up air unit - Proportional thermostat - Air filter/Filter Housing (Sold Separately) - 480 Volt - 34.5 kW - 117.8 BTU - 3 Phase - 42 Amps - 6 Element - 60+60 Amp Internal Circuit Breaker

KINGELECTRIC33293
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MAUFH MAU Filter Housing
King Electric Filter Housing for MAU Make Up Air Unit

KINGELECTRIC14478
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PKB2005-1-T-DT-FM Ductable Unit Heater
King Electric PKB-DT Series ductable industrial portable unit heater - Built-in Thermostat (40-100F) - 6 Foot SO Cord (No Plug) - 208 Volt - 5 kW - 17.1 BTU - 1 Phase - 24 Amps - 600 CFM - 17.25"H x 18"D x 15"W - 8" Round x 6" Long Duct Transition

KINGELECTRIC32732
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PKB2005-3-T-DT-FM Ductable Unit Heater
King Electric PKB-DT Series ductable industrial portable unit heater - Built-in Thermostat (40-100F) - 6 Foot SO Cord (No Plug) - 208 Volt - 5 kW - 17.1 BTU - 3 Phase - 13.9 Amps - 600 CFM - 21.25"H x 18"D x 15"W - 12" Round x 6" Long Duct Transition

KINGELECTRIC32733
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PKB2007-1-T-DT-FM Ductable Unit Heater
King Electric PKB-DT Series ductable industrial portable unit heater - Built-in Thermostat (40-100F) - 6 Foot SO Cord (No Plug) - 208 Volt - 7.5 kW - 25.6 BTU - 1 Phase - 13.9 Amps - 600 CFM - 17.25"H x 18"D x 15"W - 8" Round x 6" Long Duct Transition

KINGELECTRIC32734
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PKB2007-3-T-DT-FM Ductable Unit Heater
King Electric PKB-DT Series ductable industrial portable unit heater - Built-in Thermostat (40-100F) - 6 Foot SO Cord (No Plug) - 208 Volt - 7.5 kW - 25.6 BTU - 3 Phase - 20.8 Amps - 600 CFM - 21.25"H x 18"D x 15"W - 12" Round x 6" Long Duct Transition

KINGELECTRIC32735
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PKB2010-1-T-DT-FM Ductable Unit Heater
King Electric PKB-DT Series ductable industrial portable unit heater - Built-in Thermostat (40-100F) - 6 Foot SO Cord (No Plug) - 208 Volt - 10 kW - 34.1 BTU - 1 Phase - 48 Amps - 725 CFM - 17.25"H x 18"D x 15"W - 8" Round x 6" Long Duct Transition

KINGELECTRIC32736
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PKB2010-3-T-DT-FM Ductable Unit Heater
King Electric PKB-DT Series ductable industrial portable unit heater - Built-in Thermostat (40-100F) - 6 Foot SO Cord (No Plug) - 208 Volt - 10 kW - 34.1 BTU - 3 Phase - 27.7 Amps - 725 CFM - 21.25"H x 18"D x 15"W - 12" Round x 6" Long Duct Transition

KINGELECTRIC32737
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PKB2015-1-T-DT-FM Ductable Unit Heater
King Electric PKB-DT Series ductable industrial portable unit heater - Built-in Thermostat (40-100F) - 6 Foot SO Cord (No Plug) - 208 Volt - 15 kW - 51.2 BTU - 1 Phase - 72.1 Amps - 925 CFM - 21.25"H x 18"D x 15"W - 12" Round x 6" Long Duct Transition

KINGELECTRIC32738
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PKB2015-3-T-DT-FM Ductable Unit Heater
King Electric PKB-DT Series ductable industrial portable unit heater - Built-in Thermostat (40-100F) - 6 Foot SO Cord (No Plug) - 208 Volt - 15 kW - 51.2 BTU - 3 Phase - 36.1 Amps - 925 CFM - 21.25"H x 18"D x 15"W - 12" Round x 6" Long Duct Transition

KINGELECTRIC32739
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PKB2405-1-T-DT-FM Ductable Unit Heater
King Electric PKB-DT Series ductable industrial portable unit heater - Built-in Thermostat (40-100F) - 6 Foot SO Cord (No Plug) - 240/208 Volt - 5 kW - 17.1/12.8 BTU - 1 Phase - 20.8/18.0A - 600 CFM - 17.25"H x 18"D x 15"W - 8" Round x 6"L Duct Transition

KINGELECTRIC32740
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PKB2405-3-T-DT-FM Ductable Unit Heater
King Electric PKB-DT Series ductable industrial portable unit heater - Built-in Thermostat (40-100F) - 6 Foot SO Cord (No Plug) - 240/208V - 5 kW - 17.1/12.8 BTU - 3 Phase - 12.0/10.3A - 600 CFM - 21.25"H x 18"D x 15"W - 12" Round x 6"L Duct Transition

KINGELECTRIC32741
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PKB2407-1-T-DT-FM Ductable Unit Heater
King Electric PKB-DT Series ductable industrial portable unit heater - Built-in Thermostat (40-100F) - 6 Foot SO Cord (No Plug) - 240/208V - 7.5/5.6 kW - 25.6/19.2 BTU - 1Ph - 31.3/26.9A - 600 CFM - 17.25"H x 18"D x 15"W - 8" Round x 6"L Duct Transition

KINGELECTRIC32742
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PKB2407-3-T-DT-FM Ductable Unit Heater
King Electric PKB-DT Series ductable industrial portable unit heater - Built-in Thermostat (40-100F) - 6 Foot SO Cord (No Plug) - 240/208V - 7.5/5.6 kW - 25.6/19.2 BTU - 3Ph - 18.0/15.6A - 600 CFM - 21.25"H x 18"D x 15"W - 12" Round x 6"L Duct Transition

KINGELECTRIC32743
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PKB2410-1-T-DT-FM Ductable Unit Heater
King Electric PKB-DT Series ductable industrial portable unit heater - Built-in Thermostat (40-100F) - 6 Foot SO Cord (No Plug) - 240/208V - 10/7.5 kW - 34.1/25.6 BTU - 1Ph - 41.7/36.1A - 725 CFM - 17.25"H x 18"D x 15"W - 8" Round x 6"L Duct Transition

KINGELECTRIC32744
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PKB2410-3-T-DT-FM Ductable Unit Heater
King Electric PKB-DT Series ductable industrial portable unit heater - Built-in Thermostat (40-100F) - 6 Foot SO Cord (No Plug) - 240/208V - 10/7.5 kW - 34.1/25.6 BTU - 3Ph - 24.1/20.8A - 725 CFM - 21.25"H x 18"D x 15"W - 12" Round x 6"L Duct Transition

KINGELECTRIC32745
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PKB2412-1-T-DT-FM Ductable Unit Heater
King Electric PKB-DT Series ductable industrial portable unit heater - Built-in Thermostat (40-100F) - 6 Foot SO Cord (No Plug) - 240/208V - 12.5/9.4 kW - 42.7/32.0 BTU - 1Ph - 52.1/45.1A - 825 CFM - 21.25"H x 18"D x 15"W - 12" Round x 6"L Duct Transition

KINGELECTRIC32746
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SDHR05005001DS Duct Heater/500W/120V
Stelpro Standard Duct Heater/5 Inch Round Ducts/500W/120 Volt With Disconnect Switch

STELPRO626296537572
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SDHR05005002DS Duct Heater/500W/240V
Stelpro Standard Duct Heater/5 Inch Round Ducts/500W/240 Volt With Disconnect Switch

STELPRO626296537589
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SDHR05010001DS Duct Heater/1000W/120V
Stelpro Standard Duct Heater/5 Inch Round Ducts/1000W/120 Volt With Disconnect Switch

STELPRO626296537596
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SDHR05010002DS Duct Heater/1000W/240V
Stelpro Standard Duct Heater/5 Inch Round Ducts/1000W/240 Volt With Disconnect Switch

STELPRO626296520598

Electric Duct Heaters | Inline Duct Heaters, Packaged & Open Coil Duct Heaters, Make-up air units