Amtrol ® Products are made in the USA at our ISO registered facilities by American workers dedicated to producing the highest quality expansion tanks in the world. Thermal Expansion Tank Sizing Residential Commercial

How do I size my expansion tank? Using the calculated acceptance volume and the calculated total volume, select a tank from the chart to the right. Tank volume of the selected model must be greater than the calculated total volume.

Quickly and easily size a tank from any web browser with our Tank Sizing Calculator. Calculate suggested models, view and download submittals, and email quote requests all with this simple web-based app. Mac and PC compatible.

This expansion tank design guide takes you step by step through the design process of sizing and selecting an expansion tank for a hydronic hot water system.

Click the button below to determine the total volume required. Don’t know what size tank to choose? Always go bigger!

Sizing of low temperature closed expansion tanks. Low temperature diaphragm expansion tank sizing - calculate tank volume and acceptance volume. Properties like freezing point, viscosity, specific gravity and specific heat of ethylene glycol based heat-transfer fluids, or brines.

There are six critical inputs needed to size any expansion tank: 1. Amount of fluid to be heated 2. The type of fluid being heated 3. The starting temperature of the fluid 4. The ending temperature of the fluid 5. The minimum or starting pressure of the fluid 6. The maximum or ending pressure

Efficiently determine the required expansion tank size for your system using our Expansion Tank Size Calculator. Input the system volume and desired pressure change to obtain accurate size recommendations in gallons.

Use our calculator to estimate the size of the hydronic expansion tank require for heating system. Download calculate with your chosen settings in PDF format — drawings + data. The expansion tank in the heating system is used to maintain the pressure in the system at a stable level.

This calculator helps determine the expansion tank size needed for your plumbing or heating system.