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.

Click on a sub-category below or scroll past them to see all the products in this category. You may also use the filters on the left to sort the products in this category.

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MAU2418-1-ECM-SSR 240V Make Up Air Unit
King Electric MAU ECM Series make up air unit - Proportional thermostat - Air filter/Filter Housing (Sold Separately) - 240 Volt - 17.3 kW - 58.9 BTU - 1 Phase - 72 Amps - 3 Element - 60+60 Amp Internal Circuit Breaker

KINGELECTRIC33261
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MAU2420-1-ECM-SSR 240V Make Up Air Unit
King Electric MAU ECM Series make up air unit - Proportional thermostat - Air filter/Filter Housing (Sold Separately) - 240 Volt - 20 kW - 68.3 BTU - 1 Phase - 83 Amps - 4 Element - 60+60 Amp Internal Circuit Breaker

KINGELECTRIC33262
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MAU2420-3-ECM-SSR 240V Make Up Air Unit
King Electric MAU ECM Series make up air unit - Proportional thermostat - Air filter/Filter Housing (Sold Separately) - 240 Volt - 20 kW - 68.3 BTU - 3 Phase - 48 Amps - 4 Element - 60 Amp Internal Circuit Breaker

KINGELECTRIC33283
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MAU2425-3-ECM-SSR 240V Make Up Air Unit
King Electric MAU ECM Series make up air unit - Proportional thermostat - Air filter/Filter Housing (Sold Separately) - 240 Volt - 25 kW - 85.3 BTU - 3 Phase - 60 Amps - 5 Element - 60 Amp Internal Circuit Breaker

KINGELECTRIC33284
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MAU2430-3-ECM-SSR 240V Make Up Air Unit
King Electric MAU ECM Series make up air unit - Proportional thermostat - Air filter/Filter Housing (Sold Separately) - 240 Volt - 30 kW - 102.4 BTU - 3 Phase - 72 Amps - 6 Element - 60+60 Amp Internal Circuit Breaker

KINGELECTRIC33285
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MAU2435-3-ECM-SSR 240V Make Up Air Unit
King Electric MAU ECM Series make up air unit - Proportional thermostat - Air filter/Filter Housing (Sold Separately) - 240 Volt - 34.5 kW - 117.7 BTU - 3 Phase - 83 Amps - 6 Element - 60+60 Amp Internal Circuit Breaker

KINGELECTRIC33286
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MAU4804-1-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 - 4 kW - 13.7 BTU - 1 Phase - 8 Amps - 1 Element - No Internal Circuit Breaker

KINGELECTRIC33263
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MAU4805-1-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 - 5 kW - 17.1 BTU - 1 Phase - 10 Amps - 1 Element - No Internal Circuit Breaker

KINGELECTRIC33264
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MAU4805-3-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 - 5 kW - 17.1 BTU - 3 Phase - 6 Amps - 1 Element - No Internal Circuit Breaker

KINGELECTRIC33287
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MAU4808-1-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 - 8 kW - 27.3 BTU - 1 Phase - 17 Amps - 2 Element - No Internal Circuit Breaker

KINGELECTRIC33265
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MAU4810-1-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 - 10 kW - 34.1 BTU - 1 Phase - 21 Amps - 2 Element - No Internal Circuit Breaker

KINGELECTRIC33266
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MAU4810-3-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 - 10 kW - 34.1 BTU - 3 Phase - 12 Amps - 2 Element - No Internal Circuit Breaker

KINGELECTRIC33288
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MAU4812-1-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 - 12 kW - 40.1 BTU - 1 Phase - 25 Amps - 3 Element - No Internal Circuit Breaker

KINGELECTRIC33267
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MAU4815-1-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 - 15 kW - 51.2 BTU - 1 Phase - 31 Amps - 3 Element - No Internal Circuit Breaker

KINGELECTRIC33268
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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

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