AL50SL Alliance Hydrastone-Lined Indirect Water Heater

The concept of stone-lined water tanks is not a new one, and has been proving successful against corrosion for ages. Many of the stone-lined tanks are installed are 25-30 years old. In fact, the New England area has been using stone-lined tanks for years due to their water supply being very acidic and has been devastating to glass lined tanks.
What makes the Alliance SL unique is the Hydrastone-lining. This one half inch lining protects the steel tank from the corrosive action of water. When the water first enters the tank, it is absorbed into the Hydrastone-lining permanently. This water loses its oxygen and becomes inert, non-corrosive water which then acts as a protective wall between the hot water and steel tank. This unique process and design makes Alliance SL water heaters a great choice for domestic hot water applications.

• Maximum First Hour Rating at 135°F (gal./hr.) : 225
  
• Continuous Draw Rating at 135°F (gal./hr.) : 171
  
• Standby Loss (°F/hr.) : .56
  
• Minimum Boiler Output (MBtu/hr.) : 110
  
• Boiler Water Flow Rate (gal./min.) : 6
  
• Pressure Drop through Coil (ft. w.c.) : 9.5
  
• Storage Capacity (gal.) : 50
  
• Height (in.) : 40-3/4
  
• Diameter (in) : 26
  
• Maximum Allowable Working Pressure : 150 psi
  
• Approximate Shipping Weight (lbs.) : 248
  
• A 10-year full tank replacement, two-year labor and one year on parts, which include the coil, come with every Alliance SL.
• Hydrastone-lining