What it means
Recirculation pumps mount near the water heater or under remote fixtures and push hot water through a dedicated or crossover return line. Timers and aquastats run the pump only when needed to save energy.
Improper installation can waste energy or affect cold water temperature at certain fixtures. Check valves prevent backflow through the loop.
Why it matters in Santa Cruz County
Large Santa Cruz County homes with long pipe runs from garage heaters to second-floor baths use recirc loops common in mountain construction. Tankless heaters may need compatible pumps and controls to avoid short cycling.
Homeowner tip
Put recirc pumps on a timer so they run during morning and evening use, not 24 hours a day.
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Related glossary terms
Also explore the Septic Glossary or call 831.225.4344 with questions about your property.