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High Efficiency Comfort Systems

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Alliance SL Indirect Water Heaters

There can be extensive demands for domestic (potable) hot water in both residential and commercial applications. Hydrastone-lined Alliance SL indirectfired water heaters meet the needs for domestic hot water with a unique design and uncompromising reliability.

  • Seamless hydrastone-lined tank
  • VERY LOW standby heat loss
  • Proprietary TPI thermostat control accurately controls the output water temperature and helps eliminate tank overload.
  • Top mount removable heat exchanger with double o-ring design for easy installation and service and eliminates the need for welds between the piping and the tank.
  • Two to three inches of polyurethane foam insulation combined with the stone lining resulting in extremely low standby heat loss.
  • Larger coil diameter and spacing designed and positioned for maximum heating output and minimizes build-up.
MODELCap. GallonsMax. First Hour
Rating Gal.
Min. Boiler
Input MBtuH
Dimensions
HxWxD
Wieght Lbs.
AL27SL27 192 99.0 39.25x20x20 170
AL35SL35 200 99.0 39.25x22.75x22.75 198
AL50SL50 225 110.0 40.75x26x26 248
AL70SL70 294 120.0 45.75x28x28 300
AL119SL119 339 149.0 67.75x28x28 480

Warranty Information

  • All Parts for 12 months -
  • Limited Labor for 24 months - Limited Tank Replacement Labor Warranty
  • Heat Exchanger for 120 months -

Available Documents