Bell & Gossett Tank Heaters

Bell & Gossett TCS and TCW U-Tube Tank Heaters

Designed to heat and store water in the same unit, providing an efficient solution for mechanical rooms, boiler rooms, and applications where dependable hot water generation is required. Their shell-and-tube design uses a U-tube bundle to transfer heat from steam or hot water circulating through the tubes to the fluid stored in the tank.

These tank heaters operate primarily through natural convection inside the tank. As steam or hot water passes through the tube bundle, heat is transferred to the surrounding tank water, helping provide consistent performance without requiring a separate external heat exchanger.

The U-bend tube construction allows the bundle to expand and contract over a wide range of temperatures. Tube ends are expanded into a stationary tube sheet, creating a durable construction that supports long service life and reliable operation.

Bell & Gossett TCS and TCW tank heaters are 2-pass U-bend heat exchangers and are available in single-wall or double-wall tube construction. Their large heating capacity in a compact footprint makes them especially useful in boiler rooms with limited space or low headroom. They are also well suited for hard water areas.

Model TCS heads are furnished with tappings for steam, condensate, vacuum breaker, and vent connections. Model TCW heads are furnished with tappings for water connections.

Product Features

• U-tube tank heater design
  
• Heats and stores water in the same unit
  
• Shell-and-tube construction
  
• 2-pass U-bend heat exchanger design
  
• Designed for steam or hot water circulation through the tube bundle
  
• Uses natural convection in the tank for heat transfer
  
• U-bend tube bundle allows expansion and contraction during temperature changes
  
• Available in single-wall and double-wall tube construction
  
• Large capacity in a compact footprint
  
• Suitable for boiler rooms with limited space or low headroom
  
• Excellent option for hard water applications
  
• TCS models include tappings for steam, condensate, vacuum breaker, and vent connections
  
• TCW models include tappings for water connections

Construction Materials

• Shell: fabricated carbon steel, with stainless steel options
  
• Tube sheets: fabricated carbon steel, with stainless steel, 90/10 copper-nickel, and brass options
  
• Tubes: copper, with stainless steel, 90/10 copper-nickel, and 70/30 copper-nickel options
  
• Bonnets: cast iron, with cast stainless steel 316 and cast bronze options
  
• Additional construction options include cast ductile iron and carbon steel

Design Capabilities

• Tube side pressure:
  
• 4" through 8" diameter: 150 PSI
  
• 10" through 14" diameter: 125 PSI
  
• Tank side pressure: 150 PSI
  
• Maximum tube side temperature: 375°F
  
• Maximum tank side temperature: 375°F

Common Applications

• Domestic hot water systems
  
• Boiler rooms
  
• Mechanical rooms
  
• Hot water storage and heating
  
• Hard water applications
  
• Low-headroom installations