Water Heater Expansion Tank Code Requirement

Know anything about water heater expansion tank code.

Water heater expansion tank code requirement. Title 25 chapter 15 and the rules and regulations of the office of insurance and safety fire commissioner. An expansion tank is required if a plumbing system is closed which means that the back flow that normally runs between the house and the main water supply is blocked. The state s minimum requirements for boilers water heaters and pressure vessels over 200 000 btu h 58 61 kw 210 degrees fahrenheit or 120 gallons capacity shall be established by o c g a. The increased pressure must go somewhere.

A thermal expansion tank used on a water heater that is not covered by the code should not be required to carry the asme label. This may seem like an easy question but it is also one that many people do not actively think about. If you have a tankless water heater you don t have to worry about an expansion tank because you don t have a primary tank to begin with. For people without knowledge on water heaters they might not know about the codes.

A water heater does not fall under the current michigan boiler code if it is below 200 000 btu per hour and less than 210 degrees f in temperature and has a water containing capacity of 120 gallons or less. Expansion tanks are required if your system fails a water pressure psi test. Proper venting gas and propane heaters emit carbon monoxide which must be vented outside. 24 gage or other pans approved for such use.

However when water is heated it starts to expand which causes a rise in water pressure. Some may tell you that an expansion tank is required at every water heater but that isn t in the irc. Where a storage tank type water heater or a hot water storage tank is installed in a location where water leakage from the tank will cause damage the tank shall be installed in a galvanized steel pan having a material thickness of not less than 0 0236 inch 0 6010 mm no. If you are considering adding an expansion tank to your hot water heater.

However if you have a traditional tank style water heater you will most definitely need to consider if an. We offer water heater services in metro atlanta and surrounding areas. Call us today at 770 505 8570. Effective january 1 2014.

We will be happy to answer any of your questions about the project and cost we are available 24 hours a day 7 days a week. What type of water heater do you have. Some even lacked the knowledge of what a water heater expansion tank is and it is my goal today to tell you all about the two things i am going to talk about today. A building water distribution system having a check valve pressure regulator backflow preventer or other device that prevents pressure buildup in the building from being able to dissipate back into the source or water supply main regardless of the type of water heater used must be equipped with an expansion tank or other means to control the thermal expansion pressures.

Where requirements for expansion tanks show up in local codes they ve been added in. Location in the case of gas or propane heaters the location for your heater may be restricted.