Weil-mclain 672619207677 Aqua Plus 85 Gallon Residential Indirect-fired Water Heater 316L Stainless Steel

Product Description

The Weil-McLain 672619207677 Aqua Plus is an 85-gallon residential indirect-fired water heater built for demanding hot water applications. It is designed to work with a hydronic boiler system, using the boiler as its heat source instead of a dedicated burner. This makes it an efficient and reliable choice for homes that already run a hydronic heating system. The tank and heat exchanger are constructed from 316L stainless steel, a grade known for excellent resistance to corrosion, pitting, and crevice attack. The tank is fully passivated during manufacturing, which means no sacrificial anode rod is required. This eliminates a common maintenance task and reduces the risk of corrosion-related failures over the life of the unit. The high-output heat exchanger measures 1 inch in diameter and transfers heat efficiently from the boiler loop to the domestic water supply. A digital thermostat controls water temperature with precision, helping maintain consistent output for residential use. The unit stands 59.5 inches tall and measures 26 inches in diameter, making it suitable for mechanical rooms with standard clearances. Side inlet and outlet connections use NPT fittings for straightforward integration with existing plumbing. Adjustable feet allow the unit to sit level on uneven concrete or flooring surfaces. A temperature and pressure relief valve is included as a standard safety component. The maximum working pressure is 150 psi. The first hour rating reaches 347 gallons, which means the system can deliver a large volume of hot water during peak demand periods. The Aqua Plus is AHRI Certified under reference number 10358739, confirming third-party verification of its performance ratings. This water heater is well-suited for HVAC and plumbing contractors installing indirect water heaters in residential new construction or replacement projects.

• 316L stainless steel tank and heat exchanger with full passivation — no anode rod required
• Digital thermostat for precise temperature control and consistent hot water output
• 347-gallon first hour rating supports high-demand residential applications

Product Highlights

The Weil-McLain Aqua Plus 672619207677 delivers high-capacity indirect water heating in a corrosion-resistant 316L stainless steel tank rated for up to 150 psi. Its passivated construction and digital thermostat reduce maintenance demands while supporting reliable performance in residential hydronic systems.

Product Information

Standard Information

• Brand: WEIL-MCLAIN
• Manufacturer Part Number: 672619207677

Technical Specifications

• Collection: Aqua Plus
• Capacity: 85 gallons
• Water Heater Type: Indirect Fired
• Material: Stainless Steel
• Material Type: 316L
• Height: 59.5 inches
• Diameter: 26 inches
• End Connections: NPT
• First Hour Rating: 347 gallons
• Maximum Pressure: 150 psi
• Power Source: Indirect
• Water Heater Capacity Range: 51 to 100 gallons
• Weight: 223 pounds
• AHRI Reference Number: 10358739