– Fully sheeted duct furnaces mounted in a 16-gauge galvanized steel frame.
– Provides listed temperature rise and air side pressure drop performance.
– Each furnace includes an individual shutoff valve, flexible gas connector & union piped to properly sized supply header.
– Condensate drains pre-piped to a common header.
– Easy removal of any single duct furnace.
– All controls prewired to a sequencer for system control.
– Customer only needs to provide Power, “Call for Heat” and a 0-10 VDC signal.


Select An Efficiency:

81%80%

Application Guidelines Product Specification User Guidelines OEM Instructions Submittal / Order Information

Note: You must be logged in to view CAD, Gas Train and Wiring Diagram files.
Model NumberPDFAlt PDFPDF of Gas TrainPDF of Wiring DiagramMax Input MBHMax Output MBHMin Input MBHMin Output MBHNat. Gas Turndown RatioMax CFMMax APD @ Min RiseMax Temp RiseMin CFMMin APD @ Max RiseDim ADim BDim CDim DWeight (Lbs.)Total Amps 120VTotal Amps 208V 230V
HDB-HHX-180-360PDFPDFPDF3602923629.1610 to 190000.026045000.0140.6335.1378.417.1585
HDB-HHX-200-400PDFPDFPDF4003244032.410 to 1100000.026050000.0140.6335.1378.417.1585
HDB-HHX 225-450PDFPDFPDF4503644536.4510 to 1112500.036056250.0140.6335.1378.417.1562385
HDB-HHX 250-500PDFPDFPDF5004055040.510 to 1125000.046062500.0140.6335.1378.417.1562385
HDB-HHX 270-540PDFPDFPDF5404375443.7410 to 1135000.056067500.0140.6335.1378.417.1566985
HDB-HHX-180-540PDFPDFPDF5404373629.1615 to 1135000.026067500.0160.1335.1378.417.15127.5
HDB-HHX-200-600PDFPDFPDF6004864032.415 to 1150000.026075000.0160.1335.1378.417.15127.5
HDB-HHX 300-600PDFPDFPDF6004866048.610 to 1150000.066075000.0240.6335.1378.417.1566985
HDB-HHX 315-630PDFPDFPDF6305106351.0310 to 1157500.086078750.0240.6335.1378.417.1571585
HDB-HHX 225-675PDFPDFPDF6755474536.4515 to 1168750.036084380.0160.1335.1378.417.15935127.5
HDB-HHX 350-700PDFPDFPDF7005677056.710 to 1175000.16087500.0340.6335.1378.417.1571585
HDB-HHX 700-700PDFPDF7005677056.710 to 1175000.1510052500.027868
HDB-HHX 360-720PDFPDFPDF7205837258.3210 to 1180000.126090000.0340.6335.1378.417.1575085
HDB-HHX-180-720PDFPDFPDF7205833629.1620 to 1180000.026090000.0179.6335.1378.417.151610
HDB-HHX 250-750PDFPDFPDF7506087560.7515 to 1187500.046093750.0160.1335.1378.417.15935127.5
HDB-HHX 375-750PDFPDFPDF7506087560.7510 to 1187500.136093750.0440.6335.1378.417.1576185
HDB-HHX 400-800PDFPDFPDF8006488064.810 to 1200000.1460100000.0440.6335.1378.417.1576185
HDB-HHX-200-800PDFPDFPDF8006484032.420 to 1200000.0260100000.0179.6335.1378.417.151610
HDB-HHX 800-800PDFPDF8006488064.810 to 1200000.199066670.037868
HDB-HHX 270-810PDFPDFPDF8106565443.7415 to 1202500.0560101250.0160.1335.1378.417.151003.5127.5
HDB-HHX 225-900PDFPDFPDF9007299072.920 to 1225000.0360112500.0179.6335.1378.417.1512461610
HDB-HHX 300-900PDFPDFPDF9007296048.615 to 1225000.0660112500.0260.1335.1378.417.15987127.5
HDB-HHX 900-900PDFPDF9007299072.910 to 1225000.248084380.0481110
HDB-HHX-180-900PDFPDFPDF9007293629.1625 to 1225000.0260112500.0199.1335.1378.417.152012.5
HDB-HHX 315-945PDFPDFPDF9457656351.0315 to 1236250.0860118130.0260.1335.1378.417.151056127.5
HDB-HHX 500-1000PDFPDFPDF10008101008110 to 1250000.2760125000.0845.6341.6478.42081610
HDB-HHX-200-1000PDFPDFPDF10008104032.425 to 1250000.0260125000.0199.1335.1378.417.152012.5
HDB-HHX 1000-1000PDFPDF10008101008110 to 1250000.349083330.0585010
HDB-HHX 250-1000PDFPDFPDF10008105040.520 to 1250000.0460125000.0179.6335.1378.417.1512461610
HDB-HHX 350-1050PDFPDFPDF10508507056.715 to 1262500.160131250.0360.1335.1378.417.151056127.5
HDB-HHX 270-1080PDFPDFPDF10808755443.7420 to 1270000.0560135000.0179.6335.1378.417.1513381610
HDB-HHX 360-1080PDFPDFPDF10808757258.3215 to 1270000.1260135000.0360.1335.1378.417.151125127.5
HDB-HHX 1100-1100PDFPDF110089111089.110 to 1275000.418597060.0685010
HDB-HHX 375-1125PDFPDFPDF11259117560.7515 to 1281250.1360140630.0460.1335.1378.417.151125127.5
HDB-HHX 225-1125PDFPDFPDF1125911112.591.12525 to 1281250.0360140630.0199.1335.1378.417.15155820
HDB-HHX 1200-1200PDFPDF120097212097.210 to 1300000.4870128570.185010
HDB-HHX 600-1200PDFPDFPDF120097212097.210 to 1300000.4660150000.1345.6348.1478.42090710
HDB-HHX 400-1200PDFPDFPDF12009728064.815 to 1300000.1460150000.0460.1335.1378.417.151125127.5
HDB-HHX 300-1200PDFPDFPDF120097212097.220 to 1300000.0660150000.0279.6335.1378.417.1513441610
HDB-HHX 250-1250PDFPDFPDF12501013125101.2525 to 1312500.0460156250.0199.1335.1378.417.15155820
HDB-HHX 1250-1250PDFPDF12501013125101.2510 to 1312500.5265144230.1285010
HDB-HHX 315-1260PDFPDFPDF12601021126102.0620 to 1315000.0860157500.0279.6335.1378.417.1514321610
HDB-HHX 270-1350PDFPDFPDF135010945443.7425 to 1337500.0560168750.0199.1335.1378.417.151672.520
HDB-HHX 700-1400PDFPDF140011347056.720 to 1350000.15100105000.02142916
HDB-HHX 350-1400PDFPDFPDF140011347056.720 to 1350000.160175000.0379.6335.1378.417.1513961610
HDB-HHX 360-1440PDFPDFPDF144011667258.3220 to 1360000.1260180000.0379.6335.1378.417.1515001610
HDB-HHX 500-1500PDFPDFPDF150012151008115 to 1375000.2760187500.0867.6341.6478.4201237157.5
HDB-HHX 375-1500PDFPDFPDF150012157560.7520 to 1375000.1360187500.0479.6335.1378.417.1514881610
HDB-HHX 300-1500PDFPDFPDF15001215150121.525 to 1375000.0660187500.0299.1335.1378.417.15171020
HDB-HHX 315-1575PDFPDFPDF15751276157.5127.57525 to 1393750.0860196880.0299.1335.1378.417.15179020
HDB-HHX 800-1600PDFPDF160012968064.820 to 1400000.1990133330.03142916
HDB-HHX 400-1600PDFPDFPDF160012968064.820 to 1400000.1460200000.0479.6335.1378.417.1514881610
HDB-HHX 350-1750PDFPDFPDF175014187056.725 to 1437500.160218750.0399.1335.1378.417.1517372012.5
HDB-HHX 900-1800PDFPDF180014589072.920 to 1450000.2480168750.04147520
HDB-HHX 600-1800PDFPDFPDF1800145812097.215 to 1300000.4660150000.1367.6348.1478.4201374157.5
HDB-HHX 360-1800PDFPDFPDF180014587258.3225 to 1450000.1260225000.0399.1335.1378.417.15187520
HDB-HHX 375-1875PDFPDFPDF187515197560.7525 to 1468750.1360234380.0499.1335.1378.417.1518522012.5
HDB-HHX 500-2000PDFPDFPDF200016201008120 to 1500000.2760250000.0889.6341.6478.420164520
HDB-HHX 400-2000PDFPDFPDF200016208064.825 to 1500000.1460250000.0499.1335.1378.417.1518522012.5
HDB-HHX 1000-2000PDFPDF200016201008120 to 1500000.3490166670.05154420
HDB-HHX 700-2100PDFPDF210017017056.730 to 1525000.15100157500.02203024
HDB-HHX 1100-2200PDFPDF2200178211089.120 to 1550000.4185194120.06154420
HDB-HHX 800-2400PDFPDF240019448064.830 to 1600000.1990200000.03203024
HDB-HHX 1200-2400PDFPDF2400194412097.220 to 1600000.4870257140.1154420
HDB-HHX 600-2400PDFPDFPDF2400194412097.220 to 1300000.4660150000.1389.6348.1478.420159420
HDB-HHX 500-2500PDFPDFPDF250020251008125 to 1625000.2760312500.08111.6341.6478.420188325
HDB-HHX 1250-2500PDFPDF25002025125101.2520 to 1625000.5265288460.12154420
HDB-HHX 900-2700PDFPDF270021879072.930 to 1675000.2480253130.04210530
HDB-HHX 700-2800PDFPDF280022687056.740 to 1700000.15100210000.02270632
HDB-HHX 1000-3000PDFPDF300024301008130 to 1750000.3490250000.05222230
HDB-HHX 600-3000PDFPDFPDF3000243012097.225 to 1300000.4660150000.13111.6348.1478.420203925
HDB-HHX 800-3200PDFPDF320025928064.840 to 1800000.1990266670.03270632
HDB-HHX 1100-3300PDFPDF3300267311089.130 to 1825000.4185291180.06222230
HDB-HHX 900-3600PDFPDF360029169072.940 to 1900000.2480337500.04280640
HDB-HHX 1200-3600PDFPDF3600291612097.230 to 1900000.4870385710.1222230
HDB-HHX 1250-3750PDFPDF37503038125101.2530 to 1937500.5265432690.12222230
HDB-HHX 1000-4000PDFPDF400032401008140 to 11000000.3490333330.05296240
HDB-HHX 1100-4400PDFPDF4400356411089.140 to 11100000.4185388240.06296240
HDB-HHX 1200-4800PDFPDF4800388812097.240 to 11200000.4870514290.1296240
HDB-HHX 1250-5000PDFPDF50004050125101.2540 to 11250000.5265576920.12296240
Note: For Propane gas, turndown is 60% of stated natural gas turndown.

Application Guidelines Product Specification User Guidelines OEM Instructions Submittal / Order Information

Note: You must be logged in to view CAD, Gas Train and Wiring Diagram files.
Model NumberPDFAlt PDFPDF of Gas TrainPDF of Wiring DiagramMax Input MBHMax Output MBHMin Input MBHMin Output MBHNat. Gas Turndown RatioMax CFMMax APD @ Min RiseMax Temp RiseMin CFMMin APD @ Max RiseDim ADim BDim CDim DWeight (Lbs.)Total Amps 120VTotal Amps 208V 230V
HDB-HHX 225-450PDFPDFPDFPDF450360453610 to 1166670.066055560.0136.435791762385
HDB-HHX 250-500PDFPDFPDFPDF500400504010 to 1185190.086061730.0136.435791762385
HDB-HHX 270-540PDFPDFPDFPDF540432544310 to 1200000.116066670.0136.435791766985
HDB-HHX 300-600PDFPDFPDFPDF600480604810 to 1222220.136074070.0236.435791766985
HDB-HHX 315-630PDFPDFPDFPDF630504635010 to 1233330.176077780.0236.435791771585
HDB-HHX 225-675PDFPDFPDFPDF675540453615 to 1250000.066083330.0153.8357917756127.5
HDB-HHX 700-700PDFN/aN/aPDFPDF700560705610 to 1259260.3110051850.0230.674878.81197868
HDB-HHX 350-700PDFPDFPDFPDF700560705610 to 1259260.26086420.0336.435791771585
HDB-HHX 360-7207205767257.610 to 1266660.246088880.0375085
HDB-HHX 375-750PDFPDFPDFPDF750600756010 to 1277780.266092590.0436.435791776185
HDB-HHX 400-800PDFPDFPDFPDF800640806410 to 1296300.36098770.0436.435791776185
HDB-HHX 800-800PDFN/aN/aPDFPDF800640806410 to 1296300.399065840.0230.674878.81197868
HDB-HHX 270-8108106488164.815 to 1300000.116010000.50.011003.5127.5
HDB-HHX 900-900PDFN/aN/aN/aPDF900720907210 to 1333330.488083330.0430.674878.811981110
HDB-HHX 300-900PDFPDFPDFPDF900720604815 to 1333330.1360111110.0253.8357917987127.5
HDB-HHX 315-945PDFPDFPDFPDF945756635015 to 1350000.1760116670.0253.83579171056127.5
HDB-HHX 1000-1000PDFN/aN/aPDFPDF10008001008010 to 1370370.719082300.0430.748792285010
HDB-HHX 250-1000PDFPDFPDFPDF1000800504020 to 1370370.0860123460.0171.235791712121610
HDB-HHX 500-1000PDFPDFPDFPDF10008001008010 to 1370370.5660123460.2745.6741.579.051981610
HDB-HHX 350-1050PDFPDFPDFPDF1050840705615 to 1388890.260129630.0353.83579171056127.5
HDB-HHX 360-1080PDFPDFPDFPDF108086410886.415 to 1400000.2460133330.0353.83579171125127.5
HDB-HHX 270-1080108086410886.420 to 1400000.1160133340.0113381610
HDB-HHX 1100-1100PDFN/aN/aPDFPDF11008801108810 to 1407410.848595860.0630.674878.811985010
HDB-HHX 375-1125PDFPDFPDFPDF1125900756015 to 1416670.2660138890.0453.83579171125127.5
HDB-HHX 400-1200PDFPDFPDFPDF1200960806415 to 1444440.360148150.0453.83579171125127.5
HDB-HHX 1200-1200PDFN/aN/aPDFPDF12009601209610 to 1444440.9970126980.130.748792285010
HDB-HHX 600-1200PDFPDFPDFPDF12009601209610 to 1444440.9460148150.1245.674879.051990710
HDB-HHX 1250-1250PDFN/aN/aPDFPDF1250100012510010 to 1462961.0765142450.1230.748792285010
HDB-HHX 270-13501350108013510825 to 1500000.116016667.50.011672.520
HDB-HHX 350-1400PDFPDFPDFPDF14001120705620 to 1518520.260172840.0371.235791713961610
HDB-HHX 700-1400PDFN/aN/aPDFPDF14001120705620 to 1518520.31100103700.0259.674878.8119142916
HDB-HHX 360-144014401152144115.220 to 1533320.2460177760.0315001610
HDB-HHX 500-1500PDFPDFPDFPDF150012001008015 to 1555560.5660185190.0767.7541.579221237157.5
HDB-HHX 375-1500PDFPDFPDFPDF15001200756020 to 1555560.2660185190.0471.235791714881610
HDB-HHX 800-1600PDFN/aN/aPDFPDF16001280806420 to 1592590.3990131690.0259.674878.8119142916
HDB-HHX 400-1600PDFPDFPDFPDF16001280806420 to 1592590.360197530.0471.235791714881610
HDB-HHX 350-1750PDFPDFPDFPDF17501400705625 to 1648150.260216050.0388.535791717372012.5
HDB-HHX 600-1800PDFPDFPDFPDF180014401209615 to 1666670.9460222220.1267.754879221374157.5
HDB-HHX 360-18001800144018014425 to 1666650.2460222200.03187520
HDB-HHX 900-1800PDFN/aN/aN/aPDF18001440907220 to 1666670.4980166670.0459.674878.8119147520
HDB-HHX 375-1875PDFPDFPDFPDF18751500756025 to 1694440.2660231480.0488.535791718522012.5
HDB-HHX 500-2000PDFPDFPDFPDF200016001008020 to 1740740.5660246910.0789.6741.579.0519164520
HDB-HHX 1000-2000PDFN/aN/aPDFPDF200016001008020 to 1740740.7190164610.0459.75487922154420
HDB-HHX 400-2000PDFPDFPDFPDF20001600806425 to 1740740.360246910.0488.535791718522012.5
HDB-HHX 700-2100PDFN/aN/aPDFPDF21001680705630 to 1777780.31100155560.0288.674878.8119203024
HDB-HHX 1100-2200PDFN/aN/aPDFPDF220017601108820 to 1814810.8485191720.0659.674878.8119154420
HDB-HHX 800-2400PDFN/aN/aPDFPDF24001920806430 to 1888890.3990197530.0288.674878.8119203024
HDB-HHX 600-2400PDFPDFPDFPDF240019201209620 to 1888890.9460296300.1289.674879.0519159420
HDB-HHX 1200-2400PDFN/aN/aPDFPDF240019201209620 to 1888890.9970253970.159.75487922154420
HDB-HHX 500-2500PDFPDFPDFPDF250020001008025 to 1925930.5660308640.07111.6741.579.0519188325
HDB-HHX 1250-2500PDFN/aN/aPDFPDF2500200012510020 to 1925931.0765284900.1259.75487922154420
HDB-HHX 900-2700PDFN/aN/aN/aPDF27002160907230 to 11000000.4880250000.0488.674878.8119210530
HDB-HHX 700-2800PDFN/aN/aPDFPDF28002240705640 to 11037040.31100207410.02117.674878.8119270632
HDB-HHX 600-3000PDFPDFPDFPDF300024001209625 to 11111110.9460370370.12111.674879.0519203925
HDB-HHX 1000-3000PDFN/aN/aPDFPDF300024001008030 to 11111110.7190246910.0488.75487922222230
HDB-HHX 800-3200PDFN/aN/aPDFPDF32002560806440 to 11185190.3990263370.02117.674878.8119270632
HDB-HHX 1100-3300PDFN/aN/aPDFPDF330026401108830 to 11222220.8485287580.0688.674878.8119222230
HDB-HHX 900-3600PDFN/aN/aN/aPDF36002880907240 to 11333330.4880333330.04117.674878.8119280640
HDB-HHX 1200-3600PDFN/aN/aPDFPDF360028801209630 to 11333330.9970380950.188.75487922222230
HDB-HHX 1250-3750PDFN/aN/aPDFPDF3750300012510030 to 11388891.0765427350.1288.75487922222230
HDB-HHX 1000-4000PDFN/aN/aPDFPDF400032001008040 to 11481480.7190329220.04117.75487922296240
HDB-HHX 1100-4400PDFN/aN/aPDFPDF440035201108840 to 11629630.8485383440.06117.674878.8119296240
HDB-HHX 1200-4800PDFN/aN/aPDFPDF480038401209640 to 11777780.9970507940.1117.75487922296240
HDB-HHX 1250-5000PDFN/aN/aPDFPDF5000400012510040 to 11851851.0765569800.12117.75487922296240
Note: For Propane gas, turndown is 60% of stated natural gas turndown.