Used Hot Oil and Water Boilers
Hot oil and water boilers circulate heated thermal fluids to deliver precise temperature control for industrial processes. These systems use electric resistance heaters or gas-fired burners to heat oil, water, or glycol, then pump the fluid through closed loops to jacketed vessels, molds, dies, and other process equipment.
Federal Equipment Company stocks used hot oil heaters and water temperature control units from leading manufacturers, including Mokon, Budzar, Conair, and Chromalox. Available units range from 2.5 kW to 300 kW, with single-zone and multi-zone configurations for applications requiring independent temperature control of multiple circuits.
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Hot oil and water boilers transfer thermal energy through a circulating fluid rather than direct flame or steam contact. This indirect heating method provides stable, uniform temperatures across process equipment while eliminating the pressure hazards associated with steam systems.
Hot oil systems (thermal fluid heaters) use synthetic or petroleum-based heat-transfer oils that remain stable up to 650°F. These fluids operate at atmospheric or low pressure, even at high temperatures, simplifying system design and reducing regulatory requirements compared to high-pressure steam. Water-based temperature control units operate at lower temperatures, typically below 250°F, and offer efficient heat transfer for applications where water compatibility is acceptable.
Key components include electric immersion heaters or circulation heaters, positive-displacement or centrifugal pumps, expansion tanks to accommodate fluid thermal expansion, and microprocessor-based temperature controllers. Multi-zone units provide independent heating circuits, each with dedicated heaters, pumps, and controllers, allowing simultaneous temperature control of multiple process points from a single skid.
Federal Equipment Company stocks units configured for standard industrial environments as well as explosion-proof designs rated for Class 1, Division 1 and 2 hazardous locations. Available capacities range from compact 2.5 kW single-zone units to 300 kW systems for high-demand applications. Our team can provide inspection, testing, and refurbishment services based on your requirements.
Applications and Industries
- Mold and die temperature control for plastic injection molding and extrusion
- Reactor jacket heating in chemical and pharmaceutical batch processing
- Roll heating for laminating, calendering, and coating operations
- Process temperature control in food and beverage production
- Thermal fluid systems for rubber and composite curing
- Jacketed vessel heating in biotechnology and fermentation
- Adhesive and sealant application systems
- Asphalt and roofing material heating
Specifications and Configurations
Capacity and Output:
- Electric heater ratings: 2.5 kW to 300 kW
- Gas-fired units: up to 1,008,000 BTU input
- Multi-zone configurations: 2, 3, and 4 independent zones
Temperature Ranges:
- Hot oil systems: up to 650°F operating temperature
- Water-based units: typically 32°F to 250°F
- Heating/cooling units: -40°C to +200°C with refrigeration
Pressure Ratings:
- Standard units: up to 150 PSI
- Low-pressure thermal oil systems for high-temperature operation
Configuration Types:
- Single-zone temperature control units
- Multi-zone systems with independent circuits
- Skid-mounted hot oil circulation systems
- Heating/cooling units with integrated refrigeration
- Explosion-proof designs (Class 1, Division 1 and 2)
Materials and Construction:
- Carbon steel pressure vessels
- Stainless steel frames and piping
- Shell and tube heat exchangers for cooling applications
Electrical and Controls:
- Voltage options: 208V, 230V, 460V, and 480V three-phase
- Microprocessor temperature controllers with digital displays
- Circulation pumps: 0.5 HP to 10 HP
Why Buy Used Hot Oil and Water Boilers
Used thermal fluid heaters and temperature control units offer significant cost savings compared to new equipment, typically 40% to 60% depending on capacity, age, and condition. These systems are designed for continuous industrial operation and maintain reliable performance over extended service life when properly maintained.
New temperature control equipment often requires lead times of several weeks for standard configurations and longer for custom multi-zone or explosion-proof units. Used equipment from Federal Equipment Company is available for immediate inspection and faster delivery, reducing downtime during equipment replacement or production line expansion.
Federal Equipment Company can provide inspection, electrical testing, and refurbishment services to verify heater element condition, pump operation, and controller function before delivery. Our team can help match available inventory to your specific temperature range, capacity, and zone configuration requirements.
