Water Heater Expansion Tank Sizing

Our sizing guide for potable water expansion tanks helps you find the right watts regulator or data potable tank.

Water heater expansion tank sizing. If your water heater holds 50 gallons of cold water it will expand to about 52 gallons when it is heated. This information will be on your water heater s or boiler s factory label. We re dedicated to our customers. Expansion tanks are pre charged with a 38 psi air charge.

Pmc sizing chart for residential water heaters water heater capacity in gallons inletwater pressure 30 40 50 66 82 100. Find out more by visiting our website. For complex tank sizing for multiple apartments condos please contact the factory for sizing information. Thermal expansion tank sizing residential commercial.

Before purchasing an expansion tank you should find out how large of an expansion tank your system will require. The first is your hot water heater s or boiler s capacity in gallons. You can think of this process as bending a paper clip. Hydronic expansion tank sizing.

If the extra volume has nowhere to go it pushes on the walls of your plumbing. Or check out our support center. The way that it works is this. With enough bending the paper clip will break.

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. The decision will be based on two factors. Water heater temperature f. Understand that for hot water heating boiler expansion tank sizing calculations you need to take the system volume temperature differential etc.

10 20 000 min operating temp f max operating temp f. Free slots for orders with water heaters boilers and other bulky items only available in select areas of. New or larger expansion tanks may be needed due to pressure reducing valves check valves and backflow preventers added to the community s water system. Expansion tank size calculator.

If the inlet water pressure is higher than 38 psi the expansion tank s air pressure must be adjusted to match that pressure but must not be higher than 80 psi. To accommodate the thermal expansion required for higher temperature and or higher pressure systems multiple tanks may be used. Free shipping on orders over 99.