LES Boiler

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L.E.S. Inc. began operations March 1, 1978 with the goal of providing energy conserving heating plant equipment and control packages to commercial and industrial customers. Initially, much of the business involved upgrading existing plants by furnishing new burners and/or energy management packages (more than 300 installations in buildings owned by Illinois Bell Telephone and Sears Midwest Division). In 1979, the first L.E.S. Modular Heating Plants were designed, assembled, and installed to replace outdated and inefficient equipment for these customers. Energy cost records kept by Bell and Sears indicated short payback periods and a decision to market modular heating plants to a wider market was made. In 1985, L.E.S. negotiated an agreement with Aldrich Company where by Aldrich would manufacture a full line of heating boiler shells per L.E.S. specifications and, to reduce shipping costs and speed assembly, L.E.S. moved its production operations to a leased area within the Aldrich plant. L.E.S. assembles, tests, and ships packaged boilers, custom-built energy management packages, and boiler feed systems in Wyoming, IL and is responsible for the design, sales, and performance of these products.

VI High Efficiency Condensing Boilers:

Designed and constructed to 30psi with 100 psi construction optional. These boiler are primarily intended for reduced temperature close loop hydronic heating applications and are equipped with high turndown modulating gas burners. Minimum of four square feet of heating surface per boiler horsepower. No minimum flow requirements, no temperature differential limitation and of course the L.E.S. five year thermal shock warranty.

VI High Efficiency Condensing Water Heater:

Designed and constructed to 100 psi. These water heaters are primarily intended for domestic and/or process water heating and are equipped with high turndown modulating gas burner. Fully hot dipped galvanized with four front mounted anodes, fully accessible from the front. Galvanized, lining complies with ASTM-123 B-6 as per ASME HLW-200. No minimum flow requirements, no temperature differentail limitation and of course the L.E.S. five year thermal shock warranty

Application Details

• VI High Efficiency Condensing Heating Boilers
• VI High Efficiency Condensing Water Heater

VC Indirect Water Heaters:

The LES Indirect Water Heater has an 83% Efficient at 200°F operating water temperature and up to 86% efficient at lower temperatures.  High partial load efficiency.  There are (9) boiler and coil sizes that fit through most doors/halls.  Small foot print for easy installation.  Venting options are individual, common and sealed combustion.  The water heaters have removable coil for service and a thermal shock guarantee.

Application Details

• VC Water Heater
• VC-LT Low Temp Heat Coil

"Scotch Box" Series HF/HW Boilers

The best feature of Scotch Marine and Firebox boilers are combined to produced a compact and durable wetback boiler. These three-pass Firetube boilers, designed to fit thru standard 30" and 36" steel fire door, provide optimum performance at minimum cost. They feature a proven water- surrounded cylindrical furnace, ceramic fiber refractory rated for continuous 2600F duty, easy access to both heads and furnace via removable doors, and state -of-the-art-tabulators. Combustion efficiency the 82-83% range are guaranteed and maximum non-condensing affiances of 83.6% can often be obtained. The absence of short stay bolts combines with a U-Type flex-joint between furnace and front tube sheet to minimize thermal stress and consequent "shock" damage to boilers. Series HF/HW boilers offer exceptional value, efficiency, reliability, and ease of installation and maintenance. Elimination of side access trappings HF/HW boilers permits close spacing and simplifies installation. Particularly for steam replacement application, this is an optimum boiler design.

Ratings Data - Steam

• Series Series HF - 3-Pass Horizontal "Scotch Box" Steam Boilers
• Series Series HF3 - 3-Pass Horizontal "Scotch Box" Steam Boilers
• Series Series HF5 - 3-Pass Horizontal "Scotch Box" Steam Boilers
• Series Series HFC - 3-Pass Firetube Boilers with Integral Finned Copper Heat Exchangers

Ratings Data - Hot Water

• Series Series HW - 3-Pass Horizontal "Scotch Box" Water Boilers
• Series Series HW3 - 3-Pass Horizontal "Scotch Box" Water Boilers
• Series Series HW5 - 3-Pass Horizontal "Scotch Box" Water Boilers
• Series HCW - High Capacity Water Boiler

Application Details:

• HF Series
  • HF Steam Boilers
  • HFC Combo Steam Boiler
  • HFC Combo Steam Water Heater
  • HFC Steam Low Temp Coil
  • HFC Steam Zoned Coil
  • HFC Water Heater
  • HFC Low Temp Coil
  • HFC Water Zoned Coil
• HW Series
  • HW Heating Boilers

Series VW Boilers

Originally, vertical Firetube heating vessels were used primarily as storage-type domestic water heaters. However, commercial burner improvements (forced-draft, turbulent-mixed combustion requires reduced volume and permits increased furnace pressures) and the development of bent-steel turbulators (30" long turbulators typically reduce exhaust stack temperatures by more than 150°F) enabled re-design to simultaneously increase combustion efficiency and reduce boiler size and cost. Elimination of thermal stress due to temperature differentials across heads is inherent in the one-pass vertical construction, and the cylindrical design permits inexpensive modification to meet high pressure code requirements. By changing turbulators to "spinners", stack temperatures can be increased so that 60-80°F water in heat pump systems can be heated directly (no mixing valves, etc.). Whether purchased for a new building or as components of a replacement heating plant, Series VW boilers minimize floor space requirements and simplify handling and installation.

Application Details:

• VWC Heating Boiler
• VWC Low Temp Heating Boiler
• VWC Comb Heater
• VWC Low Temp Heating Coil

Modular Heating Plants - HF, HW, VW:

Adequate standby protection, longer system life, reduced noise levels, multi-use flexibility, space conservation, and ease of moving boiler modules into place are all important modular heating plant advantages, but long-term fuel efficiency is the primary reason for choosing L.E.S. modular boilers over competing single or dual boiler heating plants. While engineers must design for maximum load conditions, heating plant operation under typical load determines practical efficiency.

L.E.S. Series SC Sequencing Control Packages take advantage of inherently superior modular turndown ratios to match heating plant output to actual demand during even the mildest weather. Costly heat loss is eliminated by leaving unnecessary capacity at room temperature and destructive cycling of burners and related equipment is minimized by effective delay timing. Interlock terminals are provided for common boiler room safety limits and for control and proof of combustion air.

L.E.S. can provide integral heating plant control (7-Day programming with indoor/outdoor temperature override, boost, and/or alarm, per specifications) or terminals (isolating relays optional) for interfacing with new or existing energy management computers.

Complete L.E.S. Modular Heating Plants, including boiler shells, burners, pumps, control packages, and boiler feed systems combine state-of-the-art design with assured component compatibility and single-supplier responsibility.

• Contact our office at (440) 564-2219 for more information and pricing.