{"product_id":"mcdonnell-miller-126800-model-25-a-make-up-water-feeder","title":"McDonnell \u0026 Miller 126800 Model 25-A Make-Up Water Feeder","description":"\u003cp\u003eMaintain consistent boiler operation with the McDonnell \u0026amp; Miller \u003cstrong\u003e126800\u003c\/strong\u003e, a precision-engineered \u003cstrong\u003eModel 25-A\u003c\/strong\u003e make-up water feeder. This essential component automatically replenishes water levels in low-pressure steam boilers, preventing dry-firing and ensuring safe, long-term system performance.\u003c\/p\u003e\u003cp\u003eThe feeder utilizes a mechanical float-actuated valve mechanism that monitors boiler water levels in real-time. As the water level drops, the float sinks, opening the feed valve to allow municipal water into the system until the required operating level is restored, automatically shutting off once the optimal set point is reached.\u003c\/p\u003e\u003ch4\u003eKey System Performance Baselines:\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAutomated Regulation:\u003c\/strong\u003e Provides precise, gravity-fed water level control to prevent critical low-water conditions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRugged Construction:\u003c\/strong\u003e Built with durable materials designed to withstand the thermal stressors of steam heating environments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperational Reliability:\u003c\/strong\u003e Minimizes manual maintenance by ensuring consistent water replenishment in residential and light commercial steam boilers.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e⚠️ \u003cstrong\u003eApplication Profile:\u003c\/strong\u003e Ideal for replacement or new installation on residential steam heating boilers and small-scale commercial hydronic systems requiring automatic water make-up regulation.\u003c\/p\u003e","brand":"McDonnell \u0026 Miller","offers":[{"title":"Default Title","offer_id":43124884111454,"sku":"126800","price":1387.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0663\/7151\/8558\/files\/126800_image_db75b449-a7f0-4f0c-92f7-36aca0253215.png?v=1786035419","url":"https:\/\/nationalboilersupply.com\/products\/mcdonnell-miller-126800-model-25-a-make-up-water-feeder","provider":"National Boiler Supply","version":"1.0","type":"link"}