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LGB Commercial Gas Boiler

LGB Commercial Gas Boiler

  • Short draw rods permit faster, easier assembly of boiler sections
  • Includes factory-assembled base and burners, and simplified piping for quick and easy installation
  • Compact design allows for more piping and venting headroom
  • The highest efficiency commercial cast iron atmospheric gas boiler available by Weil-McLain
  • Built-in air separator diverts air to the expansion tank
  • Gas natural draft water and steam boiler with cast iron sections

Technical Data

Model Input Maximum (MBH) Input Minimum (MBH) Gross Water Output (MBH) Gross Steam Output (MBH) Net Steam (Sq. Ft.) Net Steam (MBH) Net Water (MBH) Flue Outlet Diameter (In.) Boiler Water/Steam Content (Gallons) Approx. Shipping Weight (Lbs.)
LGB-4 400 400 322 312 975 234 280 10 36.5 1,185
LGB-5 520 520 419 409 1,279 307 364 12 45.6 1,455
LGB-6 650 650 523 514 1,607 386 455 12 54.7 1,725
LGB-7 780 780 628 619 1,936 464 546 12 63.9 2,005
LGB-8 910 910 737 724 2,264 543 614 14 73 2,290
LGB-9 1,040 1,040 843 829 2,591 622 733 14 82.1 2,560
LGB-10 1,170 1,170 950 934 2,918 701 826 16 91.2 2,800
LGB-11 1,300 1,300 1,057 1,039 3,246 779 919 16 100.4 3,105
LGB-12 1,430 1,430 1,165 1,144 3,576 858 1,013 16 109.5 3,365
LGB-13 1,560 1,560 1,273 1,239 3,868 929 1,107 16 118.6 3,785
LGB-14 1,690 1,690 1,381 1,344 4,228 1,015 1,201 16 127.7 4,085
LGB-15 1,820 1,820 1,489 1,449 4,592 1,102 1,295 16 136.9 4,355
LGB-16 1,950 1,950 1,597 1,552 4,950 1,188 1,389 17 146 4,725
LGB-17 2,080 2,080 1,708 1,658 5,316 1,276 1,485 17 155.1 4,975
LGB-18 2,210 2,210 1,817 1,764 5,682 1,364 1,580 18 164.2 5,270
LGB-19 2,340 2,340 1,926 1,867 6,034 1,448 1,675 18 173.4 5,540
LGB-20 2,470 2,470 2,035 1,974 6,384 1,533 1,770 19 182.5 5,820
LGB-21 2,600 2,600 2,207 2,077 6,720 1,613 1,919 19 191.6 6,080
LGB-22 2,730 2,730 2,318 2,184 7,065 1,696 2,016 19 201.2 6,365
LGB-23 2,860 2,860 2,428 2,288 7,402 1,776 2,111 20 209.8 6,625

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