Lochinvar 100333807 Glass Lined Indirect Water Heater 52 Gallon

Product Description

The Lochinvar 100333807 is a 52-gallon glass lined indirect water heater built for residential and light commercial hot water systems. Indirect water heaters work by using heat from a boiler rather than a dedicated burner. Hot water from the boiler circulates through a heat exchanger inside the tank. That heat transfers to the stored domestic water without the two water supplies ever mixing. This design makes indirect heaters highly efficient because they rely on the boiler as their heat source. When the boiler is already running for space heating, the indirect heater benefits from that same energy at very low added cost. The Lochinvar 100333807 holds 52 gallons of domestic hot water, making it well suited for households or small commercial applications with steady hot water demand. The glass lining inside the tank protects the steel from corrosion caused by contact with hot water. This lining extends the service life of the tank and helps maintain water quality over time. A sacrificial anode rod works alongside the glass lining to provide a second layer of corrosion protection. Plumbers and HVAC technicians install indirect water heaters as part of hydronic systems. They pair with cast iron boilers, condensing boilers, and high-efficiency boilers from many manufacturers. Connections are standard, and installation follows typical indirect water heater procedures. The Lochinvar 100333807 is a reliable replacement or new-installation option for professionals who need a durable, high-capacity indirect storage tank. Lochinvar is a well-established name in the water heating and hydronic industry, known for consistent manufacturing quality and broad parts support.

• 52-gallon storage capacity suits residential and light commercial hot water demand
• Glass lining protects the tank interior from corrosion for long service life
• Indirect design uses boiler heat, eliminating the need for a separate burner or fuel connection

Product Highlights

The Lochinvar 100333807 delivers 52 gallons of glass-lined indirect water heating for hydronic systems where efficiency and durability are priorities. It pairs with most standard boilers and is a trusted choice for HVAC and plumbing professionals.

Product Information

Standard Information

• Brand: LOCHINVAR
• Manufacturer Part Number: 100333807

Technical Specifications

• Tank Capacity: 52 gallons
• Tank Lining: Glass lined
• Heater Type: Indirect water heater