IBC DTI-55 56.5 Gallon 444 SS Indirect Water Heater with Aquastat

The IBC DTI 55 is an InterStor indirect-fired water heater with a stainless steel tank and a stainless steel heating coil. It is heated by a boiler: hot boiler water runs through the internal coil and heats the domestic water stored in the tank. IBC designs the DTI series to pair with its condensing boilers, and it can be integrated with an existing boiler system.

Key features

• Stainless steel tank, pickled and passivated, with stainless steel water connections
• High-capacity smooth-wall stainless steel heating coil
• 2" of polystyrene foam insulation for low standby heat loss
• Top domestic water connections and side boiler connections
• Thermal well with a standard 10kΩ temperature sensor; aquastat, T&P relief valve and drain valve are standard on USA units
• Removable inspection port for access to the coil and tank

Specifications

• Brand: IBC
• Model: DTI 55 (DTI-55)
• Type: Indirect-fired water heater (boiler-heated)
• Gross DHW volume: 56.8 US gal
• Net DHW volume: 55.1 US gal
• Domestic water connections: 3/4" male
• Boiler connections: 1" male
• Diameter x height: 21.8 in. x 62.8 in.
• Weight: 83 lb empty; 92 lb shipping (IBC data)
• Max. operating pressure: 150 psi
• Max. DHW temperature: 180°F (82°C)
• Heating coil surface area: 10.7 sq ft
• First hour delivery*: 240 US gal/hr
• Continuous draw*: 193 US gal/hr
• Boiler output required*: 123,000 BTU/hr
• Heating coil flow rate*: 8 GPM
• Coil pressure drop*: 3.3 ft of head
• Certifications (per IBC): CSA/ANSI Z21.10.3, CSA 4.3; NSF/ANSI 372 (low lead)
• Manufacturer's warranty (IBC): 1-year limited parts; lifetime limited tank and coil for residential use; 7-year limited tank and coil for commercial use

*IBC ratings are based on 180°F boiler supply, 135°F domestic hot water and 58°F entering cold water.

Boiler piping, the T&P relief valve discharge and domestic water connections must be installed by a qualified installer following IBC's installation manual and local codes.

Questions about fit or compatibility? Ask our team. We usually reply within one business day.