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Draft Barrier Heater
Wattage Range: 376 – 4,000 W
Voltage: 240V
Phase: 1Ø
Mounting: Wall Mounted Perimeter Installation
Operation: Natural Convection Heat
Warranty: 1-Year Limited
Heavy-duty aluminum draft barrier heater for tall glass walls and large commercial perimeter heating applications.
The LB draft barrier heater provides silent natural convection heat for tall glass walls and large commercial spaces. The heavy-duty aluminum cabinet helps reduce cold downdrafts along perimeter glazing and supports continuous wall-to-wall installations.
The LB uses 12-gauge aluminum front and back construction, 7 in. high by 5 in. deep cabinet, 4 in. junction boxes at both ends, and 3/4 in. EMT raceway. End caps are required for standalone installations. Custom and anodized finish options are available.
| STANDARD MODEL | UPC | FRONT INTAKE MODEL | UPC | VOLTS* | WATTS | LENGTH | NOMINAL WATTS / FT. | REVIT - LB | REVIT - LBF |
|---|---|---|---|---|---|---|---|---|---|
| LB22403 | 14300 | LBF22403 | 14364 | 240 | 376 | 2' | 188 | Revit | Revit |
| LB22405 | 14302 | LBF22405 | 14366 | 240 | 500 | 2' | 250 | Revit | Revit |
| LB22407 | 14304 | LBF22407 | 14368 | 240 | 750 | 2' | 350 | Revit | Revit |
| LB22410 | 14306 | LBF22410 | 14370 | 240 | 1000 | 2' | 500 | Revit | Revit |
| LB32405 | 14308 | LBF32405 | 14372 | 240 | 564 | 3' | 188 | Revit | Revit |
| LB32407 | 14310 | LBF32407 | 14374 | 240 | 750 | 3' | 250 | Revit | Revit |
| LB32411 | 14312 | LBF32411 | 14376 | 240 | 1125 | 3' | 350 | Revit | Revit |
| LB32415 | 14314 | LBF32415 | 14378 | 240 | 1500 | 3' | 500 | Revit | Revit |
| LB42407 | 14316 | LBF42407 | 14380 | 240 | 750 | 4' | 188 | Revit | Revit |
| LB42410 | 14318 | LBF42410 | 14382 | 240 | 1000 | 4' | 250 | Revit | Revit |
| LB42415 | 14320 | LBF42415 | 14384 | 240 | 1500 | 4' | 350 | Revit | Revit |
| LB42420 | 14322 | LBF42420 | 14386 | 240 | 2000 | 4' | 500 | Revit | Revit |
| LB52409 | 14324 | LBF52409 | 14388 | 240 | 940 | 5' | 188 | Revit | Revit |
| LB52412 | 14326 | LBF52412 | 14390 | 240 | 1250 | 5' | 250 | Revit | Revit |
| LB52418 | 14328 | LBF52418 | 14392 | 240 | 1875 | 5' | 350 | Revit | Revit |
| LB52425 | 14330 | LBF52425 | 14394 | 240 | 2500 | 5' | 500 | Revit | Revit |
| LB62411 | 14332 | LBF62411 | 14396 | 240 | 1125 | 6' | 188 | Revit | Revit |
| LB62415 | 14334 | LBF62415 | 14398 | 240 | 1500 | 6' | 250 | Revit | Revit |
| LB62422 | 14336 | LBF62422 | 14400 | 240 | 2250 | 6' | 350 | Revit | Revit |
| LB62430 | 14338 | LBF62430 | 14402 | 240 | 3000 | 6' | 500 | Revit | Revit |
| LB82415 | 14340 | LBF82415 | 14404 | 240 | 1500 | 8' | 188 | Revit | Revit |
| LB82420 | 14342 | LBF82420 | 14406 | 240 | 2000 | 8' | 250 | Revit | Revit |
| LB82430 | 14344 | LBF82430 | 14408 | 240 | 3000 | 8' | 350 | Revit | Revit |
| LB82440 | 14346 | LBF82440 | 14410 | 240 | 4000 | 8' | 500 | Revit | Revit |
| LB92416 | 14348 | LBF92416 | 14412 | 240 | 1692 | 9' | 188 | Revit | Revit |
| LB92422 | 14350 | LBF92422 | 14414 | 240 | 2250 | 9' | 250 | Revit | Revit |
| LB92433 | 14352 | LBF92433 | 14416 | 240 | 3375 | 9' | 350 | Revit | Revit |
| LB92445 | 14354 | LBF92445 | 14418 | 240 | 4500 | 9' | 500 | Revit | Revit |
| LB102418 | 14356 | LBF102418 | 14420 | 240 | 1875 | 10' | 188 | Revit | Revit |
| LB102425 | 14358 | LBF102425 | 14422 | 240 | 2500 | 10' | 250 | Revit | Revit |
| LB102437 | 14360 | LBF102437 | 14424 | 240 | 3750 | 10' | 350 | Revit | Revit |
| LB102450 | 14362 | LBF102450 | 14426 | 240 | 5000 | 10' | 500 | Revit | Revit |
| MODEL | DESCRIPTION |
|---|---|
| LB-100BS | 1FT. Blank Section |
| LB-200BS | 2FT. Blank Section |
| LB-300BS | 3FT. Blank Section |
| LB-400BS | 4FT. Blank Section |
| LB-500BS | 5FT. Blank Section |
| LB-600BS | 6FT. Blank Section |
| LB-700BS | 7FT. Blank Section |
| LB-800BS | 8FT. Blank Section |
| LB-900BS | 9FT. Blank Section |
| LB1000BS | 10FT. Blank Section |
| MODEL | DESCRIPTION |
|---|---|
| LB-IC | Inside Corner |
| LB-OC | Outside Corner |
| LB-EC | REQUIRED End Cap (Specify right or left) 1/2" |
| LB-SP | Splice Plate |
| LB-WT | Wall Trim |
| LB-MESH | 1/4" Wire mesh under discharge grill |
| LB-PD-FM | Pedestals (field mounting) |
| MODEL | DESCRIPTION |
|---|---|
| LBCS-R | Relay Section - SPST, 20 Amp, 277 Volt |
| LBCS-RDS | Relay, Disconnect Switch Section, 20 Amp |
| LBCS-TR | Xformer Relay Section - SPST, 25 Amp, 277 V, 24V Control |
| LBCS-TRDS | Transformer Relay, Disconnect Switch Section, 20 Amp |
| LBCS-PE | PE Relay, SPST, 20 Amp |
| LBCS-DS-FUSED | Disconnect Switch, with 20 Amp fuse and fuse block |
| MODEL | DESCRIPTION |
|---|---|
| ITS | Integral Stat 25 Amp, SPST-120-277 Volts - STD-LF or RT |
| ITD | Integral Stat 20 Amp, DPST-208-240 Volts - STD-LF or RT |
| IDS | Integral Disconnect Switch 20 Amp, 120-277 V - STD-RT side |
| LBCS-TS | Thermostat Section - SPST, 20 Amp, 277 Volts |
| LBCS-TSDS | Thermostat Disconnect Switch Section, 20 Amp |
| LBCS-TSR | Thermostat Relay Switch, 20 Amp |
| LBCS-TSDSR | Thermostat Disconnect Switch, Relay Section, 20 Amp |
| LBCS-DS | Disconnect Switch, Section, 20 Amp |
Furnish and install King Electric LB draft barrier heater. Unit shall include two-piece 12-gauge aluminum front and back construction, natural convection heating operation, full-length safety cutout, feed-through wireway, 4 in. junction boxes at both ends, 3/4 in. EMT raceway, and end caps where required for standalone installation.


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