{"product_id":"wm-ultra-series","title":"Weil-McLain Ultra Series High-Efficiency Gas Boiler","description":"\u003cdiv style=\"font-family: Arial, sans-serif; font-size: 15px; color: #333333; line-height: 1.6;\"\u003e\n  \u003cp\u003e\n    The \u003cstrong\u003eWeil-McLain Ultra Series High-Efficiency Gas Boiler\u003c\/strong\u003e is a high-performance boiler part engineered to deliver premium hydronic efficiency and reliability. Built with a heavy-duty cast aluminum housing, this unit provides exceptional durability and outstanding resistance to demanding system environments. Its low-maintenance, high-performance architecture makes it an ideal solution for residential, commercial, and industrial hydronic application loops.\n  \u003c\/p\u003e\n  \u003cp style=\"margin-top: 15px;\"\u003e\n    Engineered as the centerpiece of advanced low-temperature condensing hydronic systems, the Ultra Series leverages state-of-the-art modulating burner configurations to eliminate short-cycling and lower fuel utility rates by up to 30%. The integration of an UltraArmor protective thermal block structure defends core passageways from corrosion and debris accumulation, sustaining high operational efficiency year after year. Equipped with intuitive multi-zone digital controls and outdoor temperature monitoring interfaces, this condensing system smoothly matches heat production to ambient load demands for uniform climate control.\n  \u003c\/p\u003e\n\n  \u003c!-- Advanced Engineering Features Bullets --\u003e\n  \u003cdiv style=\"margin-top: 25px; margin-bottom: 20px;\"\u003e\n    \u003ch4 style=\"font-size: 16px; font-weight: bold; margin-bottom: 10px; color: #111111; border-bottom: 2px solid #111111; padding-bottom: 5px;\"\u003eAdvanced Engineering Features:\u003c\/h4\u003e\n    \u003cul style=\"margin: 0; padding-left: 20px; font-size: 14px; color: #333333; line-height: 1.6;\"\u003e\n      \u003cli style=\"margin-bottom: 8px;\"\u003e\n\u003cstrong\u003eUltraArmor Nanotechnology Coating:\u003c\/strong\u003e Premium protective internal shielding acts as a barrier against scaling and harsh thermal cycling stresses to secure heat exchanger longevity.\u003c\/li\u003e\n      \u003cli style=\"margin-bottom: 8px;\"\u003e\n\u003cstrong\u003e5:1 Proportional Modulation Turn-Down:\u003c\/strong\u003e Advanced gas valve and variable-speed blower automatically scale performance down to 20% capacity to accurately fulfill small zone demands without wasting energy.\u003c\/li\u003e\n      \u003cli style=\"margin-bottom: 8px;\"\u003e\n\u003cstrong\u003eU-Control Intelligent Logic Board:\u003c\/strong\u003e Comprehensive multi-circulator management screen monitors internal sensors and outdoor profiles, operating up to three unique temperature setpoints simultaneously.\u003c\/li\u003e\n    \u003c\/ul\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e","brand":"Weil-McLain","offers":[{"title":"80k BTU","offer_id":42913145782366,"sku":"383-500-732","price":3742.0,"currency_code":"USD","in_stock":true},{"title":"105k BTU","offer_id":42918863831134,"sku":"383-500-734","price":3925.0,"currency_code":"USD","in_stock":true},{"title":"155k BTU","offer_id":42913145815134,"sku":"383-500-735","price":4479.0,"currency_code":"USD","in_stock":true},{"title":"230k BTU","offer_id":42913145847902,"sku":"383-500-736","price":5697.0,"currency_code":"USD","in_stock":true},{"title":"399k BTU","offer_id":42913145880670,"sku":"383-500-737","price":7866.0,"currency_code":"USD","in_stock":true},{"title":"299k BTU","offer_id":42918863863902,"sku":"383-500-738","price":9913.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0663\/7151\/8558\/files\/Weil-McLain_Ultra_Series_high_efficiency_condensing_gas_water_boiler_with_a_fully_removable_grey_front_access_jacket_assembly..jpg?v=1782003884","url":"https:\/\/nationalboilersupply.com\/products\/wm-ultra-series","provider":"National Boiler Supply","version":"1.0","type":"link"}