WATLOW 2-18-40-86MA Firebar Immersion Heater 480V 3-PH 36KW 150

( Brand: Watlow ), ( Manufacturer Part Number: 2-18-40-86MA ), ( Part Type: 480v Heater ), ( Country Of Origin: United States )

Review WATLOW New Firebar Immersion Heater 480v 3-ph 36kw Inch 150 Psi

The **Watlow 2-18-40-86MA FireBar Immersion Heater** is a high-performance, industrial-grade heating solution designed to deliver reliable and efficient thermal processing in demanding applications. Engineered for heavy-duty use, this **480V, three-phase, 36kW** immersion heater features Watlow s proprietary **FireBar technology**, a robust heating element constructed from a high-density, ceramic-coated nickel-chrome alloy. This advanced design ensures exceptional durability, resistance to thermal shock, and extended operational lifespan, even under the most aggressive conditions. The **150 F (65 C) maximum operating temperature** rating makes it ideal for a wide range of industrial processes, including molten metal heating, chemical processing, and high-temperature fluid or material treatment, where consistent and precise heat transfer is critical.

What sets this immersion heater apart is its **compact yet powerful construction**, with a **40mm diameter** and **18mm length**, allowing for precise installation in tight spaces while maintaining maximum heat output. The **86MA model** is specifically optimized for applications requiring a balance of efficiency and reliability, making it a versatile choice for manufacturers, refineries, and other industries where downtime is costly. The **three-phase, 480V power rating** ensures high current capacity, enabling rapid heat-up times and sustained performance without overheating concerns. Additionally, the **immersion design** allows for direct heat transfer into liquids, slurries, or other media, eliminating the need for external heat exchangers and reducing energy loss.

Watlow s reputation for quality engineering is evident in the **FireBar element**, which is encased in a corrosion-resistant, ceramic-coated sheath that protects against chemical degradation, scaling, and mechanical wear. This protective layer enhances the heater s resistance to aggressive environments, including those containing acids, alkalis, or abrasive particles, making it suitable for corrosive industrial fluids. The **welded construction** of the heater further ensures structural integrity, minimizing the risk of leaks or failures during prolonged operation. For applications requiring precise temperature control, this immersion heater can be seamlessly integrated with Watlow s **temperature controllers**, ensuring consistent and repeatable heating performance.

Beyond its technical specifications, the **2-18-40-86MA FireBar Immersion Heater** is a testament to Watlow s commitment to innovation and reliability in industrial heating solutions. Whether used in **metal melting, chemical synthesis, food processing, or waste treatment**, this heater provides a dependable, high-efficiency heating alternative that reduces energy consumption while maximizing productivity. Its **modular and adaptable design** also allows for easy installation in existing systems, making it a cost-effective upgrade for facilities seeking to enhance their thermal processing capabilities. With Watlow s backing, users can trust in a heater that delivers **superior performance, longevity, and operational safety**, ensuring it remains a cornerstone of efficient industrial heating for years to come.

### **Pros and Cons of buying a Watlow 2-18-40-86MA FireBar Immersion Heater (480V, 3-Phase, 36kW, 150 F Max)**

1. **High Power Output (36kW)** Ideal for large-scale industrial applications, such as heating high-viscosity fluids, molten materials, or large-volume processes. The 3-phase, 480V design ensures efficient power delivery for heavy-duty operations.

2. **Durable Construction** Watlow is a well-established brand known for high-quality, long-lasting immersion heaters. The FireBar design is robust, resistant to corrosion, and built for continuous operation in demanding environments.

3. **Precise Temperature Control** The 150 F maximum temperature rating suggests it is designed for applications requiring consistent, controlled heating without overheating risks. This is useful in processes where exact temperature maintenance is critical.

4. **Energy Efficiency** A 36kW heater is optimized for industrial use, reducing heating time and energy waste compared to lower-power alternatives. The 3-phase, 480V setup minimizes voltage drop and improves efficiency in large-scale systems.

5. **Versatility in Applications** Suitable for heating oils, resins, molten metals (if properly insulated), or other high-temperature industrial fluids. The immersion design allows for direct heat transfer, improving efficiency in tanks, vats, or reactors.

6. **Watlow s Reliability & Support** Watlow is a trusted manufacturer with extensive technical support, warranties, and replacement parts availability. This reduces downtime and ensures long-term usability.

7. **Safety Features** Properly installed, this heater should include over-temperature protection and robust insulation to prevent leaks or electrical hazards. Watlow heaters often come with built-in safety mechanisms.

8. **Scalability** If your operation grows, this heater can handle increased demand without requiring a complete system overhaul.

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1. **High Initial Cost** A 36kW industrial immersion heater is a significant investment, especially for small businesses or startups. The price may be prohibitive without a clear, high-volume application.

2. **Requires Proper Installation & Electrical Setup** This heater is designed for **480V, 3-phase power**, meaning it needs a compatible electrical system. Improper installation can lead to electrical hazards, reduced efficiency, or premature failure. Professional installation is strongly recommended.

3. **Maintenance & Longevity Concerns** While Watlow heaters are durable, immersion heaters in corrosive or abrasive environments (e.g., acidic fluids, slurries) may require frequent inspections, cleaning, or replacement of components like seals or thermowells.

4. **Space & Logistical Requirements** A 36kW heater generates significant heat and may require proper ventilation, cooling systems, or insulation to prevent heat loss and ensure safe operation near flammable materials.

5. **Potential for Energy Waste** If the system is not properly sized or controlled, the heater may run inefficiently, leading to higher energy costs. Poor insulation in the tank or poor fluid circulation can reduce effectiveness.

6. **Limited to Immersion Applications** Unlike some heaters that can be used in forced-air or convection systems, this is strictly an **immersion model**, meaning it must be submerged in a liquid medium. It cannot be used for direct heating of gases or solids without modification.

7. **Potential for Thermal Stress** Rapid heating or cooling cycles can cause thermal expansion/contraction, leading to stress on the heater element or tank. This may shorten the lifespan if not managed properly.

8. **Regulatory & Safety Compliance** Industrial heaters must meet local electrical, fire, and safety codes. Non-compliance could result in fines, shutdowns, or insurance issues.

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The **Watlow 2-18-40-86MA FireBar Immersion Heater (36kW, 480V, 3-phase)** is a **high-performance, industrial-grade heater** best suited for **large-scale, high-power heating applications** where efficiency, durability, and precise temperature control are critical. It excels in **molten material processing, high-viscosity fluid heating, or continuous industrial processes** where lower-power heaters would be insufficient.

However, it is **not a cost-effective or practical choice** for small-scale, low-volume, or non-industrial applications due to its **high power demand, electrical requirements, and price**. Businesses considering this heater must ensure:

- Their **electrical system can safely support 480V, 3-phase, 36kW**.

- The **application genuinely requires this level of power** (otherwise, a smaller heater would suffice).

- **Proper installation, maintenance, and safety protocols** are in place to prevent hazards.

You operate an **industrial process** (e.g., plastics manufacturing, metal casting, large-scale chemical processing) that demands **high heat output and reliability**.

Your facility has **480V, 3-phase power** and can accommodate the **electrical load**.

You have **budget and space** for a **high-end, durable heating solution**.

You prioritize **long-term efficiency and minimal downtime** due to Watlow s reputation for quality.

Your application is **small-scale or low-power** (a 10-20kW heater would be more appropriate).

Your electrical system is **not compatible with 480V, 3-phase** (a single-phase or lower-voltage model may be needed).

You lack **expertise in industrial heater installation and maintenance** (risk of improper setup leading to failure or safety issues).

Your budget is **limited**, as cheaper alternatives (even if less durable) may suffice for basic heating needs.

- If your power requirements are lower, explore **Watlow s smaller models** (e.g., 10kW 20kW) or other brands like **Honeywell or Thermon**.

- For **non-industrial or residential use**, a **lower-voltage, single-phase immersion heater** would be more practical.

- If **energy efficiency is a concern**, assess whether **insulation, fluid circulation, or process optimization** could reduce the need for such high power.

**Final Verdict:** This is a **premium industrial heater** justified for **high-demand applications**, but not a necessity for smaller or less intensive uses. Always **consult an electrical engineer and heater specialist** before purchasing to ensure compatibility with your system.

Details:

NEW WATLOW FIREBAR IMMERSION HEATER 480V, 3-PH, 36 KW 4 150 PSI FLANGE CATALOG: 2-18-40-86MA LOCATION UNDER 2-8.

part #: 2184086ma prices

• $339.99-$712.49

specifications temperaturcontr:

• brand: Watlow
• mpn: 2-18-40-86ma
• part type: 480v Heater
• country of origin: United States

seller temperaturcontr:

• rating: 99.6%
• city: Tuckerton, New Jersey
• # reviews: 2140

offer temperaturcontr:

• options: Ship-to-home
• started: April 17, 2026
• quantity: 1
• availability: In Stock
• best offers: True
• sold: 0

returns temperaturcontr:

• time: 30 Days
• policy: Returns Accepted
• method: Money back
• paid by: Buyer

shipping temperaturcontr:

• cost: $182.95
• service: USPS Priority Mail, UPS Ground, UPS Next Day Air
• carrier: USPS, UPS
• type: Calculated
• transit: 5-11 Days
• class: Expedited, Standard, One-day

payments temperaturcontr:

• credit card: Diners-club
• wallet: Apple-pay
• other

general temperaturcontr:

• PLCs HMIs > PLC Peripheral Modules > PLC Temperature Modules
• condition: Used

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