{"product_id":"armstrong-110123-121-astro-3-4-aquastat","title":"Armstrong 110123-121 Astro 3\/4\" Aquastat","description":"\u003cp\u003eThe Aquastat is a temperature‑regulating device that ensures your boiler operates within the optimal heat range for efficient heating. The Armstrong Astro 3\/4\" Aquastat, part **110123-121**, provides reliable set‑point control and protects equipment from overheating.\u003c\/p\u003e\u003cp\u003eDesigned with a robust housing and a compact 3\/4\" inlet\/outlet, the Aquastat monitors water temperature through a built‑in sensor and activates the boiler heating elements when the temperature falls below the programmed low limit, then shuts off the burner once the high limit is reached.\u003c\/p\u003e\u003ch4\u003eKey System Performance Baselines:\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccurate Set‑Point:\u003c\/strong\u003e Maintains temperature within ±2 °F of the selected limit.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuick Response:\u003c\/strong\u003e Activates heating within seconds of a temperature drop.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnergy Savings:\u003c\/strong\u003e Reduces boiler cycling, lowering fuel consumption.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e⚠️ \u003cstrong\u003eApplication Profile:\u003c\/strong\u003e Ideal for residential and light‑commercial hydronic heating systems, boiler retrofits, and repair projects requiring precise temperature control.\u003c\/p\u003e","brand":"Armstrong","offers":[{"title":"Default Title","offer_id":43123795722334,"sku":"110123-121","price":74.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0663\/7151\/8558\/files\/110123_121_image_20313921-2f91-4318-b9c6-953d1098e4b4.png?v=1786018888","url":"https:\/\/nationalboilersupply.com\/products\/armstrong-110123-121-astro-3-4-aquastat","provider":"National Boiler Supply","version":"1.0","type":"link"}