If you’re working on a plumbing project in California, chances are you’ve heard of “”Title 24.”” As part of the California Building Standards Code, Title 24 includes regulations aimed at enhancing energy efficiency and water conservation. In Southern California, where water conservation is especially critical, Title 24 compliance isn’t just about meeting code—it’s about sustainability and responsible resource management.

What is Title 24?

Title 24, officially called the California Code of Regulations, applies to building standards for both residential and non-residential properties. It sets benchmarks for energy efficiency, addressing aspects like heating, cooling, insulation, and, importantly, plumbing systems. With ongoing drought concerns and a growing population, these standards help reduce water and energy use, lowering the environmental footprint of buildings across California.

Key Plumbing Requirements in Title 24

1. Water Heater Standards

  • High-efficiency water heaters are mandatory. This includes options like tankless water heaters or heat pump water heaters, which minimize standby heat loss and increase energy efficiency.
  • Solar water heating or recirculating hot water systems are recommended, especially for larger properties, to further reduce energy usage.

2. Low-Flow Fixtures

  • Faucets, toilets, and showerheads must meet specific flow rates to conserve water.
  • Title 24 mandates kitchen faucets to flow at 1.8 gallons per minute (GPM) or less, and bathroom faucets at 1.2 GPM or less.
  • Toilets must use less than 1.28 gallons per flush, and urinals must use 0.125 gallons per flush or less. These requirements significantly reduce household water consumption.

3. Pipe Insulation

  • Insulating hot water pipes is required to maintain water temperature, reducing the time needed to reach the desired temperature and saving both water and energy.
  • Insulation requirements are particularly strict for pipes with diameters of ¾ inch or larger or for pipes located outdoors or in unconditioned spaces.

4. Water Conservation through Landscape Irrigation

  • Outdoor water use is a major focus of Title 24. California’s Model Water Efficient Landscape Ordinance (MWELO) ties into Title 24, regulating irrigation practices with low-flow irrigation systems and sensors to prevent overwatering.
  • Title 24 encourages the use of gray water systems for irrigation and other non- potable needs. These systems recycle water from sinks, showers, and washing machines, helping conserve potable water.

Title 24 plumbing standards reflect California’s commitment to sustainability and resource conservation, particularly in water-scarce regions like Southern California. By adhering to these standards, builders, contractors, and homeowners can not only meet regulatory requirements but also contribute to safeguarding precious water resources.

Whether you’re planning a new project or upgrading an existing property, compliance with Title 24 can lead to long-term savings and a more sustainable future. In Southern California, conserving water isn’t just a requirement—it’s a responsibility. Embracing Title 24 standards is an essential step toward creating resilient communities that thrive in the face of environmental challenges.

If you live or work anywhere in Southern California, SoCal Plumbers can suggest licensed and insured plumbing technicians. To find out more, visit https://socalplumbers.com/.

SoCal Plumbers