{"title":"Circulator Pumps","description":"\u003cp\u003eA circulator pump moves water through a hydronic loop. Under-pump the system and the heat pump faults on low flow; over-pump it and you pay in noise and electricity every hour of the season. Aquacoils supplies Grundfos circulators, selected against the flow your heat pump needs and the head your pipe network imposes.\u003c\/p\u003e","products":[{"product_id":"circulator-pump-1-1-4-inch-hydronic-loop-aquacoils","title":"Circulator Pump 1-1\/4 Inch Hydronic Loop | Groundfos","description":"\u003ch3\u003eHigh-Efficiency 1 1\/4\" NPT Hydronic Circulator Pump (220V \/ 60Hz)\u003c\/h3\u003e\n\u003cp\u003eEngineered specifically for closed-loop air-to-water and geothermal heat pump systems, the Groundfos\u003cb\u003e 1 1\/4\" Hydronic Circulator Pump\u003c\/b\u003e delivers continuous, high-efficiency fluid circulation across primary heat pump loops, buffer tanks, and zoned distribution manifolds.\u003c\/p\u003e\n\u003cp\u003eEquipped with high-flow \u003cb\u003e1 1\/4\" NPT connections\u003c\/b\u003e and an advanced variable-speed motor operating at \u003cb\u003e220V \/ 60Hz\u003c\/b\u003e, this pump dynamically adjusts output to match system demand. It drastically reduces electrical consumption while preventing low-flow faults and head loss across dual-season heating and chilled-water cooling circuits. Every unit is backed by an industry-leading \u003cb\u003e3-year limited warranty\u003c\/b\u003e for long-term operational peace of mind.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003eKey Features \u0026amp; Technical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003e1 1\/4\" NPT High-Flow Connections:\u003c\/b\u003e Oversized 1 1\/4\" threaded ports accommodate elevated gallon-per-minute (GPM) requirements, minimizing hydraulic friction and pressure drop in heat pump loops.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003e220V \/ 60Hz Electrical Rating:\u003c\/b\u003e Single-phase power configuration built for direct integration into standard North American heat pump control boards and hydronic distribution panels.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eElectronically Commutated Motor (ECM):\u003c\/b\u003e Variable-speed ECM technology automatically scales power output to match active zone valves, consuming up to 80% less energy than fixed-speed pumps.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eDual-Season Heating \u0026amp; Cooling:\u003c\/b\u003e Thermally rated for hot water space heating and low-temperature chilled water cooling without risk of internal motor condensation failure.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003e3-Year Manufacturer Warranty:\u003c\/b\u003e Full 3-year warranty protection guaranteeing reliable performance and structural integrity in demanding hydronic applications.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch3\u003eFrequently Asked Questions (AEO Quick Answers)\u003c\/h3\u003e\n\u003cp\u003e\u003cb\u003eQ: Why are 1 1\/4\" NPT connections ideal for heat pump circulator pumps?\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eA:\u003c\/b\u003e Hydronic heat pumps operate at lower supply water temperature differentials (\u003cspan class=\"math-inline\"\u003e$\\Delta T$\u003c\/span\u003e) than traditional boilers, requiring higher GPM flow rates to transfer thermal energy. The 1 1\/4\" NPT connection size reduces internal fluid velocity and head loss, allowing the pump to maintain target flow with minimal energy draw.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eQ: What coverage is included with the 3-year warranty?\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eA:\u003c\/b\u003e The 3-year warranty covers mechanical, electrical, and structural defects under normal operating conditions in closed-loop hydronic heating and cooling systems.\u003c\/p\u003e","brand":"Aquacoils","offers":[{"title":"Default Title","offer_id":49661977723032,"sku":null,"price":598.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/2743\/9768\/files\/aquacoils-grundfos-ups-pump-product.png?v=1787759813"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/2743\/9768\/collections\/aquacoils-card-circulator.png?v=1787760032","url":"https:\/\/aquacoils.com\/collections\/circulator-pumps.oembed","provider":"Aquacoils","version":"1.0","type":"link"}