A Better Way to Heat Water 

Product Details 

NAECAIII Compliant Water Heaters

Hydronic Water Expansion Tanks
Expansion Tanks
1-Year Tank
American Expansion Tanks for closed space heating systems provide a place for expanding water to go during cycles of thermal expansion, eliminating the risk of damage to the boiler and piping in the system.

  • For use with space heating boilers in closed systems — not for use with potable water heating systems
  • Models up to 14.6 gallons feature in-line design for installation directly into system piping
  • Field-adjustable 12 PSI air charge
  • Drawn-steel tank
  • Butyl diaphragm, for permanent separation of air and water, with no waterlogging
  • Maximum Working Pressure: 100 PSI
  • Maximum Temperature: 240°F
  • 1-Year Limited Warranty

Download Spec Sheet
Download Installation Instructions