On Demand Recirculation Systems Meet California Title24 Requirements
California Title24, Part 6 energy code is one of the nation’s most rigorous standards for energy efficiency in buildings. It requires that hot water recirculation systems be designed not just for comfort, but also to minimize energy waste. For builders, architects, and energy consultants, finding compliant solutions that don’t compromise usability is critical.
In California, building energy compliance isn’t just a box to check… It’s a design imperative. As climate concerns rise and legislation tightens, Title 24 of the California Building Standards Code continues to evolve, impacting every stage of design and construction.
California Title 24 mandates that domestic hot water recirculation systems:
- Turn on the pump when there is a demand for hot water, (as detected by a manual switch or occupancy sensor).
- Turn off the pump when hot water reaches the end of the plumbing line, (no more than a 10* rise or a 105* lockout).
- Limit the pump operation to no longer than five minutes after any activation to prevent cavitation due to airlock.
These requirements aim to reduce energy consumption and avoid continuous water circulation when it’s not needed, one of the most common inefficiencies in traditional plumbing setups.
How AutoHot Meets California Title 24 (Specifically)
AutoHot is a Demand Controlled Hot Water Recirculation System that checks every box for compliance while improving user experience. Here’s how:
Demand-Based Activation
Instead of circulating hot water throughout your home or building continuously, The AutoHot Demand Controller will only activate the Recirculation Pump when hot water is actually needed.
The system is compatible with the largest variety of Activators in the market
Wireless Push Buttons
Motion Sensors
Manual Switches
This ensures compliance with the California Title 24 requirement for On Demand system operation by avoiding energy waste from consistent circulation.
No guesswork. No wasted energy. This is exactly what the code requires: short pump cycles and minimal standby loss.
Automatic Shutoff
Once hot water reaches the desired temperature the Recirculation Pump shuts itself off automatically. This feature aligns directly with California Title 24’s standard to limit pump run-time and eliminate unnecessary heat loss and water waste.
Flexible System Compatibility
AutoHot supports both:
Whether you’re designing a system for a new build or retrofitting an existing home, AutoHot has a compliant solution ready including options for tank, tankless or heat pump water heaters.
Wireless Installation Options
From Under Sink Crossover Systems to Wireless Receiver Kits for Tankless Water Heaters with integrated Recirculation Pumps, AutoHot simplifies installation and avoids costly rewiring…perfect for remodels aiming to meet new codes with the simplicity of installation under thirty minutes.
National Recognition by Energy Leaders
AutoHot has been acknowledged by energy programs such as:
They have also been featured at the Southern California Edison Energy Education Center and have been installed throughout North America, most notably at Disney Cotino.
This additional recognition underscores their proven role in high-performance and energy-efficient buildings.
Real-World Benefits
- Homeowners save water and energy, without waiting for hot water to reach the end of the plumbing line.
- Builders stay ahead of code updates with minimal to no design disruption.
- Inspectors see a clear path to compliance.
- Designers can integrate AutoHot into both luxury and affordable builds.
- Installation takes under thirty minutes.
AutoHot is not just a convenience: it’s a compliant, efficient, and future-ready solution for meeting California’s strict energy codes. If your project involves hot water circulation, choosing AutoHot ensures you’ll be:
- California Title 24 compliant
- Energy and water efficient
- Installer-and homeowner friendly
Final Takeaway
When you’re working under the pressure of California Title 24 compliance, AutoHot delivers a plug-and-play solution that makes everyone’s life easier…from the job site to the inspection walkthrough. Besides, who likes waiting for hot water anyhow?
Need help designing your hot water system to meet California Title 24? Please Contact Us. Our team will help you select the right configuration for your specific project.
