Water Heater Expansion Tanks WE CAN TAKE THE PRESSURE ™
Amtrol invented the thermal expansion tank to control pressure build-up in closed, potable water systems. This prevents the water heater pressure relief valve from opening, saves energy and eliminates a potential safety hazard. All Therm-X-Trol expansion tanks are made in the USA in our ISO 9001:2015 certified facility. 7-Year Warranty Fresh Water Turbulator™ • The industry's longest.
Thermal Expansion Tanks Therm-X-Trol® for Tankless and POU • Accepts expanded water as system temperature rises and returns hot water to system when demand occurs. Tankless Water Heater • Patented air cell eliminates pressure surge to protect heat exchanger. • Required by most building codes and all water heater warranties. • 7-Year limited warranty: The industry's longest. Specifications ST-1 THERM-X-TROL Model Number Diameter (Inches) Height (Inches) System Connection (NPTM) ST-1 3.
Selection & Selling Tools Homeowner Brochure (MC10230) explains how Therm-X-Trol controls thermal expansion to provide a better, safer system. Therm-X-Trol® Quick Sizing Charts Maximum Temperature Setting 140°F Water Heater Size (gals.) Maximum Temperature Setting 160°F 40 60 80 Water Heater Size (gals.) Tankless & P.O.U up to 2 gal.
