Marine Water Calorifier

The Steam and Electric Marine Water Calorifier is a state-of-the-art hot water generation system, engineered to provide the ultimate flexibility for marine and offshore applications. This advanced dual-power unit features integrated heating elements for both steam and electric operation, ensuring a continuous, reliable supply of hot water for crew accommodation, galleys, sanitary facilities, and service needs, regardless of the vessel’s primary power source or operational status.

By combining two independent heating methods into a single, compact calorifier, this system offers redundant hot water generation. If steam is unavailable (e.g., when the auxiliary boiler is offline), the electric heating elements seamlessly take over, and vice versa. This dual-fuel capability eliminates single points of failure and guarantees hot water availability in all conditions, enhancing crew comfort and operational efficiency.

Intelligent Control & Uncompromising Safety

The calorifier is equipped with advanced WTZK-50-C automatic temperature controllers, which precisely maintain the domestic hot water temperature within the optimal range of 50-65°C. This prevents scalding, maximizes energy efficiency, and inhibits bacterial growth (e.g., Legionella). A critical float level switch provides comprehensive safety protection by automatically cutting power to the electric heating elements if water levels drop, preventing costly and dangerous dry heating damage.

Designed to meet the most stringent international standards, this unit is available with certification from all major classification societies, ensuring seamless integration into any vessel’s engineering system.

Key Features & Benefits

✅ Dual Heating Technology (Steam & Electric): Provides unparalleled operational flexibility and redundancy. The unit can run on steam when the boiler is operational, and switch to electric power when the boiler is offline or in port, ensuring a continuous hot water supply.
✅ Intelligent Automatic Temperature Control: Precision WTZK-50-C controllers automatically regulate the heating process, maintaining the water temperature consistently within the safe and efficient 50-65°C range.
✅ Comprehensive Dry Heating Protection: A critical float level switch continuously monitors the water level. If the water level falls below a safe point, the system instantly cuts power to the electric heating elements, preventing burnout and extending the unit’s lifespan.
✅ Energy-Efficient Segmented Heating: The electric heating system utilizes segmented heating technology, allowing operators to activate only the required number of heating elements. This reduces peak power demand and optimizes energy consumption based on real-time hot water needs.
✅ Robust Marine Construction: Built to withstand the vibration, shock, and corrosive atmosphere of marine environments, ensuring long-term reliability.
✅ Global Certification Ready: Designed and tested to meet the requirements of major IACS classification societies, including ABS, BV, DNV, LR, CCS, and others. Certification can be provided upon request.
✅ Comprehensive Size Range: Available in capacities from 0.12 m³ to 1.0 m³ to suit a wide variety of vessel sizes, from small workboats to large passenger ships.

Technical Specifications

Model	ZDR-0.12	ZDR-0.2	ZDR-0.3	ZDR-0.5	ZDR-1.0
Capacity (m³)	0.12	0.2	0.3	0.5	1.0
Working Pressure	0.4 MPa (60°C)	0.4 MPa (60°C)	0.4 MPa (60°C)	0.4 MPa (60°C)	0.4 MPa (60°C)
Design Pressure	0.44 MPa	0.44 MPa	0.44 MPa	0.44 MPa	0.44 MPa
Test Pressure	0.68 MPa	0.68 MPa	0.68 MPa	0.68 MPa	0.68 MPa
Safety Valve Setting	0.42 MPa	0.42 MPa	0.42 MPa	0.42 MPa	0.42 MPa
Steam Heating Capacity	275 kg/h	450 kg/h	750 kg/h	1200 kg/h	3250 kg/h
Steam Consumption	27.5 kg/h	45 kg/h	75 kg/h	120 kg/h	325 kg/h
Electric Heating Capacity	180 kg/h	360 kg/h	540 kg/h	720 kg/h	900 kg/h
Electric Power	12 kW	24 kW	36 kW	48 kW	60 kW
Voltage Options	AC380V/50Hz/3φ or AC440V/60Hz/3φ

Applications

This versatile marine calorifier is the ideal solution for providing reliable domestic hot water on a wide range of vessels and offshore installations:

Merchant Vessels: Cargo ships, container vessels, tankers, and bulk carriers requiring reliable hot water for crew.
Passenger Ships & Ferries: Meeting the high-demand hot water needs of hundreds of passengers and crew.
Offshore Platforms: Providing hot water for accommodation modules, galleys, and sanitary facilities.
Workboats & Tugs: Ensuring crew comfort during extended operations.
Naval & Government Vessels: Meeting stringent reliability and safety specifications.
Luxury Yachts: Delivering a continuous supply of hot water for a premium onboard experience.