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L.E.S. Boilers
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www.lesboilers.com Phone:
309-695-2200 |
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 L.E.S. designs, assembles, tests, and ships packaged boilers, custom built
energy management packages and boiler feed systems. Their Packaged
Boilers are designed and tested to the standards of Section IV of the ASME
code for the following types of service:
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Direct Water Heating: 30 to 100 psi design; 200 to 4100 MBH input.
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Steam Heating: 15 psi design; 200 to 4400 MBH input.
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Indirect Water Heating: Finned copper tube heat exchangers mounted in
steam or water boilers for full output indirect or combination
direct/indirect heating; 200 to 3000 MBH input.
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Series VI
Boilers (Brochure
- PDF 183KB) |
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 New!
High Efficiency Condensing Steel Fire Tube Boiler with
efficiencies up to 97%.
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"Scotch Box" Series HF/HW
Boilers (Brochure
- PDF 1011KB) |
 The best features of Scotch Marine and Firebox boilers are combined to
produce a compact and durable wetback boiler.
These three-pass firetube boilers, designed to fit thru standard
30" and 36" steel fire doors, provide optimum performance at minimum cost.
They feature a proven water-surrounded cylindrical furnace, ceramic fiber
refractories rated for continuous 2600°F duty, easy access to both heads and
furnace via removable doors, and state-of-the-art turbulators. Combustion
efficiencies in the 82-83% range are guaranteed and maximum non-condensing
efficiencies 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 boiler. Series HF/HW
boilers offer exceptional value, efficiency, reliability, and ease of
installation and maintenance. Elimination of side access tappings (HF/HW
boilers are wet-backed below reversing chamber) permits close spacing and
simplifies installation. Particularly for steam replacement applications,
this is an optimum boiler design. |
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Series VW Boilers (Brochure
- PDF 1937KB) |
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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 new buildings or as components of
replacement heating plants, Series VW boilers minimize floor space
requirements and simplify handling and installation. |
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Packaged Boiler Features |
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L.E.S. employs customized standard burners with control cabinet and fuel
train components located for easy access and maintenance. Burner fuel train
electrical components are piped and wired, boiler limit/operating controls
are mounted and wired, and burner cabinet terminals (or wires pulled to top
of boiler) are provided for field connections. Packaged boilers include
site-specific wiring schematics showing remote control and/or interlock
connections and instructions for boiler maintenance and safe, efficient
boiler/burner operation. |
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Modular Boilers |
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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
partial load 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/inefficient excess 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.
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For more more information on L.E.S. boilers please
contact us directly or go to
LES.
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To order any parts, you can
contact us or send an
e-mail request directly to
our parts department.
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