{"product_id":"weil-mclain-672619207660-aqua-plus-55-gallon-residential-indirect-fired-water-heater-316l-stainless-steel","title":"Weil-mclain 672619207660 Aqua Plus 55 Gallon Residential Indirect-fired Water Heater 316L Stainless Steel","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe Weil-McLain 672619207660 Aqua Plus is a 55-gallon residential indirect-fired water heater built for reliable, high-output domestic hot water delivery. It is designed to work with a home boiler system, using the boiler as its heat source rather than a dedicated burner or electric element. This makes it an efficient and long-lasting choice for hydronic heating setups. The tank and heat exchanger are both constructed from 316L stainless steel, a premium alloy known for its excellent resistance to corrosion and pitting. Because the tank is fully passivated, it does not require a sacrificial anode rod to protect against corrosive water conditions. This reduces long-term maintenance and extends service life compared to standard glass-lined or magnesium-anode tanks. The internal heat exchanger measures 1 inch in diameter and delivers high heat transfer rates, helping the unit achieve a first hour rating of 298 gallons. That output level supports high-demand households and multi-bathroom applications with ease. The digital thermostat provides precise temperature control, helping to maintain consistent hot water delivery and reducing the risk of scalding or temperature fluctuations. Installation is straightforward thanks to side connections that keep plumbing neat and accessible, along with adjustable feet to compensate for uneven mechanical room floors. The unit connects using NPT fittings, which are standard across residential and light commercial plumbing. A temperature and pressure relief valve is included. The Aqua Plus is AHRI Certified under reference number 10358738, confirming that its published performance ratings are independently verified. HVAC contractors, plumbers, and mechanical installers working on hydronic systems will find this unit well-suited for new construction and boiler replacement projects alike.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e316L stainless steel tank and heat exchanger with full passivation — no anode rod required\u003c\/li\u003e\n\u003cli\u003eFirst hour rating of 298 gallons supports high-demand residential hot water needs\u003c\/li\u003e\n\u003cli\u003eDigital thermostat with side NPT connections and adjustable feet for easy, accurate installation\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eProduct Highlights\u003c\/h4\u003e\u003cp\u003eThe Weil-McLain Aqua Plus 672619207660 delivers high-output indirect-fired water heating through a fully passivated 316L stainless steel tank rated for up to 150 psi, making it a durable and low-maintenance solution for hydronic residential systems.\u003c\/p\u003e\u003ch3\u003eProduct Information\u003c\/h3\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: WEIL-MCLAIN\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 672619207660\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCollection\u003c\/strong\u003e: Aqua Plus\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCapacity\u003c\/strong\u003e: 55 gallons\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWater Heater Type\u003c\/strong\u003e: Indirect Fired\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Stainless Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial Type\u003c\/strong\u003e: 316L\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Source\u003c\/strong\u003e: Indirect\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFirst Hour Rating\u003c\/strong\u003e: 298 gallons\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Pressure\u003c\/strong\u003e: 150 psi\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnd Connections\u003c\/strong\u003e: NPT\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDiameter\u003c\/strong\u003e: 21-7\/8 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeight\u003c\/strong\u003e: 60 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 122 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAHRI Certified\u003c\/strong\u003e: Yes, Reference Number 10358738\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"WEIL-MCLAIN","offers":[{"title":"Default Title","offer_id":51120989634866,"sku":"672619207660","price":2915.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/304884921.jpg?v=1777745161","url":"https:\/\/voomisupply.com\/products\/weil-mclain-672619207660-aqua-plus-55-gallon-residential-indirect-fired-water-heater-316l-stainless-steel","provider":"Voomi Supply","version":"1.0","type":"link"}