Laars Heating Systems RE2354000 Thermofuse
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Laars Heating Systems RE2354000 Thermofuse

Laars Heating Systems RE2354000 Thermofuse

The Laars RE2354000 Thermofuse is a mission-critical safety component engineered specifically for the rear section of the heat exchanger (HX) in high-efficiency Laars NeoTherm hydronic boilers. Functioning as a non-threaded (NT), one-time thermal cutoff, this HX Rear NT Thermofuse protects the appliance from catastrophic failure by breaking the electrical circuit if internal temperatures exceed safe operating limits. It is a direct OEM replacement for Laars Heating Systems models ranging from 150 to 850 MBTU/h, including the NTH-285, NTH-500, and NTH-850 commercial series.

When performing preventative maintenance or responding to a lockout code on the Laars Integrated Control System, ensuring the integrity of the heat exchanger safety circuit is paramount. This genuine boiler safety device is essential for maintaining the 95% AFUE rating of condensing units by preventing overheating conditions that could compromise the stainless steel heat exchanger. As a specialized HVAC replacement part, it ensures the system remains compliant with ANSI/ASME CSD-1 safety standards for automatically fired boilers.

Key Benefits
  • Precise Overheat Protection: Specifically calibrated to the thermal profile of the NeoTherm heat exchanger rear assembly.
  • Broad Compatibility: Fits the full Laars NeoTherm lineup from 150 through 850 series units.
  • OEM Engineering: Guaranteed Laars Heating Systems genuine part for exact electrical and physical fitment.
  • Critical System Safety: Acts as the final line of defense against excessive flue gas or heat exchanger temperatures.
Common Questions

What are the symptoms of a failed Laars thermofuse?
Usually, a failed fuse results in a hard lockout of the boiler control system. Technicians will often see error codes indicating a safety circuit open. Since this is a non-resettable component, it must be replaced once tripped.

Can I use a universal thermofuse as a substitute?
No. The RE2354000 is an application-specific NT (Non-Threaded) fuse designed for specific thermal thresholds. Using non-OEM components can lead to unsafe operating conditions and component failure.

Where is this fuse located on the NeoTherm?
This specific fuse is located at the back of the heat exchanger assembly (Rear HX). Accessing it requires following proper manufacturer teardown procedures for the jacket and internal components.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.

$24.31

Original: $69.45

-65%
Laars Heating Systems RE2354000 Thermofuse

$69.45

$24.31

Laars Heating Systems RE2354000 Thermofuse

The Laars RE2354000 Thermofuse is a mission-critical safety component engineered specifically for the rear section of the heat exchanger (HX) in high-efficiency Laars NeoTherm hydronic boilers. Functioning as a non-threaded (NT), one-time thermal cutoff, this HX Rear NT Thermofuse protects the appliance from catastrophic failure by breaking the electrical circuit if internal temperatures exceed safe operating limits. It is a direct OEM replacement for Laars Heating Systems models ranging from 150 to 850 MBTU/h, including the NTH-285, NTH-500, and NTH-850 commercial series.

When performing preventative maintenance or responding to a lockout code on the Laars Integrated Control System, ensuring the integrity of the heat exchanger safety circuit is paramount. This genuine boiler safety device is essential for maintaining the 95% AFUE rating of condensing units by preventing overheating conditions that could compromise the stainless steel heat exchanger. As a specialized HVAC replacement part, it ensures the system remains compliant with ANSI/ASME CSD-1 safety standards for automatically fired boilers.

Key Benefits
  • Precise Overheat Protection: Specifically calibrated to the thermal profile of the NeoTherm heat exchanger rear assembly.
  • Broad Compatibility: Fits the full Laars NeoTherm lineup from 150 through 850 series units.
  • OEM Engineering: Guaranteed Laars Heating Systems genuine part for exact electrical and physical fitment.
  • Critical System Safety: Acts as the final line of defense against excessive flue gas or heat exchanger temperatures.
Common Questions

What are the symptoms of a failed Laars thermofuse?
Usually, a failed fuse results in a hard lockout of the boiler control system. Technicians will often see error codes indicating a safety circuit open. Since this is a non-resettable component, it must be replaced once tripped.

Can I use a universal thermofuse as a substitute?
No. The RE2354000 is an application-specific NT (Non-Threaded) fuse designed for specific thermal thresholds. Using non-OEM components can lead to unsafe operating conditions and component failure.

Where is this fuse located on the NeoTherm?
This specific fuse is located at the back of the heat exchanger assembly (Rear HX). Accessing it requires following proper manufacturer teardown procedures for the jacket and internal components.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.

Product Information

Shipping & Returns

Description

The Laars RE2354000 Thermofuse is a mission-critical safety component engineered specifically for the rear section of the heat exchanger (HX) in high-efficiency Laars NeoTherm hydronic boilers. Functioning as a non-threaded (NT), one-time thermal cutoff, this HX Rear NT Thermofuse protects the appliance from catastrophic failure by breaking the electrical circuit if internal temperatures exceed safe operating limits. It is a direct OEM replacement for Laars Heating Systems models ranging from 150 to 850 MBTU/h, including the NTH-285, NTH-500, and NTH-850 commercial series.

When performing preventative maintenance or responding to a lockout code on the Laars Integrated Control System, ensuring the integrity of the heat exchanger safety circuit is paramount. This genuine boiler safety device is essential for maintaining the 95% AFUE rating of condensing units by preventing overheating conditions that could compromise the stainless steel heat exchanger. As a specialized HVAC replacement part, it ensures the system remains compliant with ANSI/ASME CSD-1 safety standards for automatically fired boilers.

Key Benefits
  • Precise Overheat Protection: Specifically calibrated to the thermal profile of the NeoTherm heat exchanger rear assembly.
  • Broad Compatibility: Fits the full Laars NeoTherm lineup from 150 through 850 series units.
  • OEM Engineering: Guaranteed Laars Heating Systems genuine part for exact electrical and physical fitment.
  • Critical System Safety: Acts as the final line of defense against excessive flue gas or heat exchanger temperatures.
Common Questions

What are the symptoms of a failed Laars thermofuse?
Usually, a failed fuse results in a hard lockout of the boiler control system. Technicians will often see error codes indicating a safety circuit open. Since this is a non-resettable component, it must be replaced once tripped.

Can I use a universal thermofuse as a substitute?
No. The RE2354000 is an application-specific NT (Non-Threaded) fuse designed for specific thermal thresholds. Using non-OEM components can lead to unsafe operating conditions and component failure.

Where is this fuse located on the NeoTherm?
This specific fuse is located at the back of the heat exchanger assembly (Rear HX). Accessing it requires following proper manufacturer teardown procedures for the jacket and internal components.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.

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