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Why you’ll love it

RestaurantSupply.com is your trusted source for Hubbell electric booster heaters.

  • Authorized Hubbell dealer, ensuring genuine commercial restaurant equipment and manufacturer support
  • Fast shipping available on in-stock Hubbell J645S electric booster heaters
  • Competitive pricing backed by a 30-day price match guarantee
Additional Question? Ask an Expert

Hubbell J645S 18 Inch Electric Boiler Heater with 6 Gallon Tank Stainless Steel

Hubbell  |  MFG #: J645S  |  Item #: 453130
Item: #453130

Technical details
Manufacturer Hubbell Water Heaters
Model Number J645S
Manufacturer Part # J645S
Wattage 41 - 60 Kilowatts
Width 11" - 19"
Height 18"
Width 18"
Depth 29.13"
Weight 110 lbs
UL Yes
UL EPH Yes
cUL Yes
NSF Yes

About this item

Product Details

The Hubbell J645S Booster Heater Electric 45.0 KW is a high-capacity commercial heating unit designed for precise temperature control and reliable performance in foodservice environments. This electric booster heater features a 6-gallon stainless steel tank, ASME stamped for durability, and is equipped with CFC/HCFC free closed cell foam insulation to optimize energy efficiency. It utilizes an electronic display controller with low water cut-off and leak detection functions, ensuring safe and consistent operation. With a power input of 45.0 kW, the J645S is suitable for medium-volume kitchen applications requiring rapid hot water generation and reliable performance for beverage, dishwashing, and sanitation processes.

Top Hubbell J645S Features

The Hubbell J645S booster heater is engineered for dependable performance in commercial kitchens, offering electronic controls for precise temperature management and leak detection. Its ASME stainless steel tank ensures longevity, while the CFC/HCFC free insulation reduces energy consumption. Designed for easy maintenance, it includes adjustable plastic legs for stable installation and pressure-reducing valves with by-pass for seamless integration into existing plumbing systems. Ideal for foodservice operators needing consistent hot water supply, the J645S supports efficient workflow and operational safety.

  • Electronic display controller: Enables precise temperature adjustments and leak detection
  • ASME stainless steel tank: Ensures corrosion resistance and durability in high-use environments
  • Energy-efficient insulation: CFC/HCFC free closed cell foam minimizes heat loss during operation
  • Compact footprint with adjustable legs: Facilitates stable installation in tight kitchen spaces
  • Pressure reducing valve with by-pass: Simplifies plumbing integration and maintenance

Ideal for medium-volume foodservice operations requiring reliable hot water for dishwashing, sanitation, or beverage prep.

Hubbell J645S Technical Specs

The Hubbell J645S booster heater operates on a 45.0 kW electricity supply, with specifications supporting 208-240V, three-phase power, and a typical current draw appropriate for commercial-grade applications. Its self-contained design combines a stainless steel tank with internal insulation for energy efficiency and longevity. The unit’s dimensions measure approximately 18 inches wide by 29.13 inches deep and 18 inches high, weighing around 110 lbs for ease of installation. Constructed entirely from corrosion-resistant stainless steel, it is suitable for high-temperature environments up to standard operating ranges. The unit includes UL and UL EPH approvals, fulfilling necessary safety standards, and features a 6-gallon capacity suitable for moderate throughput scenarios. The booster heater is designed for straightforward disassembly for cleaning and maintenance, with automation features like leak detection and low water cut-off for operational safety.

  • Electrical requirements: 208-240V, three-phase, 45.0 kW, 41-60 kW range
  • Cooling method: Self-contained unit with internal components
  • Production capacity: Supports water heating needs for moderate throughput applications
  • Construction & finish: Stainless steel exterior and tank for corrosion resistance
  • Dimensions & weight: 18" W x 29.13" D x 18" H, 110 lbs
  • Safety features: UL and UL EPH approved, low water cut-off, leak detection
  • Electrical compatibility: Connects to 208-240V three-phase power supplies
  • Plumbing setup: Includes pressure reducing valve with by-pass for seamless integration
  • Clearance requirements: Sufficient space for maintenance and air-flow around unit
  • Operational environment: Designed for high-temperature commercial kitchen settings
  • Maintenance considerations: disassembly for cleaning, includes gaskets and seals

What is a commercial booster heater

A commercial booster heater is a high-capacity water heating unit designed to quickly raise water temperature for use in foodservice operations. It is typically installed in dishwashing and sanitation stations, providing consistent hot water supply for high throughput environments. The Hubbell J645S booster heater, with its 45.0 kW electric heat source and 6-gallon ASME stainless steel tank, is optimized for medium-volume applications like restaurant kitchens and institutional foodservice facilities, supporting reliable performance and energy efficiency in demanding settings.

Top electric booster heaters for foodservice applications

Designed for medium-volume foodservice facilities, the Hubbell J645S electric booster heater offers durable stainless steel construction, precise electronic controls, and energy-efficient insulation, making it ideal for commercial kitchens needing consistent hot water. Its robust build and safety features support efficient operation in sanitation, dishwashing, and beverage preparation workflows. Hubbell J645S, known for reliable performance and straightforward maintenance, ensures seamless integration into busy foodservice environments.

  • Medium-volume operation for restaurant dishwashing and sanitation
  • Constructed from corrosion-resistant stainless steel for longevity
  • Precision electronic controls for accurate temperature regulation
  • Compact design supporting tight kitchen layouts
  • Self-contained system with safety and leak detection features

Certifications

UL Listed logo

UL Listed

The item has been tested by Underwriters Laboratories (UL) for sanitation hazard standards and meets or exceeds expectations.

NSF Listed logo

NSF Listed

The item meets the standards imposed by NSF International. These standards relate to health, public safety and the environment.

UL EPH logo

UL EPH

This item meets or exceeds ANSI/NSF requirements and complies with United Laboratories (UL) EPH standards.

cUL logo

cUL

Tested by Underwriters Laboratories and certified for use in Canada, this product meets strict Canadian safety standards.

Certifications

Customer reviews

Hubbell J645S Booster Heater Electric 45.0 KW
Hubbell Water Heaters

Hubbell J645S 18 Inch Electric Boiler Heater with 6 Gallon Tank Stainless Steel

$4,706.73 $8,865.00

Hubbell Water Heaters, J645S, Booster Heater, electric, 45.0 kW, 6-gallon storage capacity, ASME stamped stainless steel tank with CFC/HCFC free closed cell foam insulation, electronic display controller with low water cut-off & leak detection, stainless steel exterior, pressure reducing valve with by-pass, T&P gauge, T&P relief valve, adjustable plastic legs, UL, cUL, ASME, UL EPH (ANSI/NSF 5)