The California Plumbing Code (Section 608.3) and the California Mechanical Code (Section 1005.0) requires a thermal expansion tank, or listed equivalent, to be installed to water heating systems to relieve excessive building pressure during the heating process.
Also, are drip legs required in California?
IRC requires them at: Furnaces and Water Heaters.
Simply so, can I move water heater outside?
Yes, a water heater can be installed outside in certain instances. Electric and gas tank-style water heaters are not designed to be installed outside without shelter. … Electric tankless water heaters can also be installed outside with some sheltering recommended to protect the unit from the weather.
Can I put a hot water heater in a closet?
Water heaters can be installed in bedroom or bathroom closets, if necessary or preferred, but only if they’re an electric, direct vent or sealed combustion chamber unit. Other water heaters that use fuel combustion are not permitted to be installed in bedrooms, bathrooms or closets that open into these rooms.
Do water heaters have backflow preventer?
One of the main problems seen in water heater tank installations has to do with thermal expansion tanks. … Backflow preventers are now required by many plumbing codes to be installed in the cold water supply line from the street.
Do water heaters need to be accessible?
Water heaters connected to a piping system shall have an accessible, approved manual shutoff valve with a non-displaceable valve mem- ber, or a listed gas convenience outlet installed within six (6) feet (1.8 m) of the appliance it serves.
Does California require water heaters to be double strapped?
The State of California requires that all water heaters must be strapped to resist motion during an earthquake. … All water heaters must be strapped in at least two locations; the upper one-third of the unit and the lower one-third. The lower strap must be a minimum of 4″ above the water heater control unit.
Does gas water heater have to be off ground?
According to the Uniform Plumbing Code, a natural gas tank water heater should be installed at least 18 inches from the ground. It’s also important to note that this measurement doesn’t necessarily start at the bottom of the unit.
How do I know if I have a closed plumbing system?
If you see a backflow prevention device
- On an outside wall.
- In a basement.
- In a utility room or closet.
How do I know if I need an expansion tank?
An expansion tank is always highly recommended if you have a ‘closed-loop system‘ caused by any kind of check valve or pressure regulating valve installed on your house’s water supply line. … However, the long-term wear and tear of this excess pressure can reduce the life expectancy of everything in your plumbing system.
How high does an electric water heater have to be off the ground?
Is it code to have an expansion tank on water heater?
California Plumbing Code Section 608.3 requires an expansion tank to be installed on the water heater when it is a closed system. A closed system is one that has a check valve, or backflow prevention device.
What is the code for water heaters?
2 Equipment Efficiency. Residential water heaters are regulated under California’s Title 20 Appliance Efficiency Regulations, Section 1605.1(f). These regulations align with the federal efficiency standards for residential water heaters.
Why are hot water heaters outside in California?
California, like much of the West Coast, is vulnerable to earthquakes. For this reason, water heaters must be fitted with earthquake straps to keep the appliance safely in place in the event of an earthquake.