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The Caleffi 656404 is a thermoelectric actuator designed to control water flow in hydronic heating systems. Operating at twenty-four volts, this actuator provides precise regulation of temperature and flow rates, making it an ideal choice for various heating applications.
This actuator is efficient and energy-saving, making it suitable for radiant floor heating, zone valves, and hydronic baseboards.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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