
BLNF21J28W Comparison
| photo | price | summary | rating |
|---|---|---|---|
![]() | $894.60 | Condition is New – Open box, Watlow BLNF21J28W Firebar Immersion Heater 23in 12kw 480v-ac, FREE SHIPPING | ![]() |

The Watlow BLNF21J28W Firebar Impression Heater is a powerful and efficient heating solution designed for industrial applications. This heater features a 23-inch long Firebar element, which is ideal for immersion heating applications in large tanks or vessels. With a maximum power output of 12kW, this heater is capable of delivering high levels of heat to quickly bring the temperature of your process fluid up to the desired level.
The BLNF21J28W Firebar Heater is designed for use with 480V-AC power supplies, making it a versatile option for a wide range of industrial applications. The heating element is constructed using type K thermocouple elements, which provide accurate and reliable temperature measurement. The heater also includes a high limit thermostat for added safety, which will shut off the heater if the temperature exceeds a set limit.
The Firebar Heater is constructed using high-quality materials, including a stainless steel sheath and a ceramic insulator, to ensure long-lasting performance and durability. The heater is also designed with a high watt density, allowing it to heat large volumes of fluid quickly and efficiently. The heating element is easily removable for cleaning or maintenance, making it a low-maintenance option for your industrial heating needs.
Overall, the Watlow BLNF21J28W Firebar Impression Heater is a powerful and efficient heating solution for industrial applications. Its long, 23-inch Firebar element and high power output make it an ideal choice for heating large tanks or vessels, while its versatile 480V-AC power supply and accurate temperature measurement make it a flexible option for a wide range of industrial heating applications. With its durable construction and high watt density, this heater is a reliable and efficient choice for your industrial heating needs.
Pros and Cons of buying a Watlow BNLF21J28W Firebar Immersion Heater (23in, 12kW, 480V-AC)
1. Pros:a. High Power Density: This immersion heater offers a high power output of 12kW, making it suitable for industrial applications that require large amounts of heat.
b. Compact Design: With a length of only 23 inches, this heater is relatively compact for its power rating, saving installation space.
c. Durable Construction: The Watlow BNLF21J28W is built with a type K thermocouple and a fire-tube design, ensuring long-lasting performance in high-temperature environments.
d. Versatile Application: This heater can be used with various process fluids and is suitable for both batch and continuous processes.
2. Cons:a. High Voltage: The 480V-AC power requirement of this heater could pose a challenge for facilities without the necessary electrical infrastructure.
b. Cost: The high power density and industrial-grade design result in a higher price point compared to lower-power heating solutions.
c. Complex Installation: Due to its high power output and voltage requirement, installation may require specialized knowledge and resources.
3. Conclusion:The Watlow BNLF21J28W Firebar Immersion Heater offers significant advantages for industrial applications that require a high power density heating solution. Its compact design, durability, versatility, and high power output make it a valuable investment for specific industrial processes. However, its high voltage and cost requirements, along with the complexity of installation, may present challenges for smaller-scale or less experienced operations.
4. Recommendation:Considering the pros and cons, this heater is a recommended option for industrial applications that require a high power density heating solution with a compact design, long-lasting performance, and versatility. However, it is essential to ensure that your facility has the necessary electrical infrastructure to accommodate the 480V-AC power requirement and that the installation process is handled by experienced professionals. If your application does not require such high power output or if your facility cannot accommodate the high voltage, it may be more cost-effective to consider lower-power heating solutions.
Details:
Model line:firebar. Solenoid valves. Safety and security. Model number:blnf21j28w.
Valve bodies and manifolds. Shock absorbs. Solenoid coils.
specifications maxohvac:
- brand: Watlow
- mpn: Blnf21j28w
- part type: Heater
- length: 23 In
- power: 12 Kw
- voltage: Ac
- model line: Firebar
- reference sku: 1725923
- product condition: New Other
shipping maxohvac:
- type: fixed
- transit: 6-6 days
- service: standard, expedited, overnight
- class: standard, expedited, one-day
general maxohvac:
- category: Business & Industrial > Hvac Refrigeration
payments maxohvac:
- wallet: google-pay
- other
- credit card: mastercard
seller maxohvac:
- # reviews: 118020
- rating: 99.9%
- city: delta, ohio
offer maxohvac:
- in stock #: 1
- best offers: true
- availability: in stock
- price: $894.60
- item condition: New – Open box
- options: ship-to-home
- sold #: 16
- started: october 29, 2025
returns maxohvac:
- method: money back
- paid by: seller
- time: 30 days
- policy: returns accepted
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