Laars Heating Systems RE2071501 Damper Assembly
The Laars RE2071501 Damper Assembly is a critical 4-inch automated vent damper engineered specifically for Laars Mini-Therm JVS-50 and JVT-50 residential hydronic boilers. Operating as a safety and efficiency component, this replacement vent damper prevents the loss of heated air through the flue when the burner is not firing. For seasoned contractors, this HVAC damper assembly is the solution for "stuck vent" errors or ignition failures where the intermittent ignition device (I.I.D.) fails to sequence due to a faulty end switch. The unit includes the 4-inch damper plate and integrated actuator, designed to interface seamlessly with the factory damper wiring harness. By maintaining the thermal chimney effect during the off-cycle, this Laars combustion component improves the seasonal energy efficiency (AFUE) of the Laars JVS/50 system. It is a drop-in OEM replacement part that ensures code-compliant venting and prevents flue gas spillage into the mechanical room.
Key Benefits:
- Optimized Efficiency: Prevents standby heat loss by sealing the flue when the boiler is at rest, maximizing Mini-Therm II performance.
- Direct Compatibility: Factory-spec assembly for 4" venting on Laars JVS-50 and JVT-50 models.
- Reliable Sequencing: Restores electrical continuity in the safety circuit to ensure the main gas valve opens only when the damper is fully retracted.
- Heavy-Duty Construction: Built to withstand high-temperature flue gases and frequent cycling in demanding residential applications.
Common Questions:
- Does this include the wiring harness? This part is the damper assembly and actuator. If your harness is brittle or damaged from excessive heat, we recommend inspecting it before installation.
- Will this fit larger Mini-Therm models? No, the RE2071501 is specifically sized for the 50 MBH unit. Larger JVS/JVT models (75-225) require different damper diameters (5" to 7").
- Why is my boiler not firing even with a new damper? Ensure the damper is rotating freely and the end switch is engaging. A "stuck vent" call often indicates the actuator is not reaching its fully open position.
This item is not eligible for free shipping.
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.
Laars Heating Systems RE2071501 Damper Assembly
The Laars RE2071501 Damper Assembly is a critical 4-inch automated vent damper engineered specifically for Laars Mini-Therm JVS-50 and JVT-50 residential hydronic boilers. Operating as a safety and efficiency component, this replacement vent damper prevents the loss of heated air through the flue when the burner is not firing. For seasoned contractors, this HVAC damper assembly is the solution for "stuck vent" errors or ignition failures where the intermittent ignition device (I.I.D.) fails to sequence due to a faulty end switch. The unit includes the 4-inch damper plate and integrated actuator, designed to interface seamlessly with the factory damper wiring harness. By maintaining the thermal chimney effect during the off-cycle, this Laars combustion component improves the seasonal energy efficiency (AFUE) of the Laars JVS/50 system. It is a drop-in OEM replacement part that ensures code-compliant venting and prevents flue gas spillage into the mechanical room.
Key Benefits:
- Optimized Efficiency: Prevents standby heat loss by sealing the flue when the boiler is at rest, maximizing Mini-Therm II performance.
- Direct Compatibility: Factory-spec assembly for 4" venting on Laars JVS-50 and JVT-50 models.
- Reliable Sequencing: Restores electrical continuity in the safety circuit to ensure the main gas valve opens only when the damper is fully retracted.
- Heavy-Duty Construction: Built to withstand high-temperature flue gases and frequent cycling in demanding residential applications.
Common Questions:
- Does this include the wiring harness? This part is the damper assembly and actuator. If your harness is brittle or damaged from excessive heat, we recommend inspecting it before installation.
- Will this fit larger Mini-Therm models? No, the RE2071501 is specifically sized for the 50 MBH unit. Larger JVS/JVT models (75-225) require different damper diameters (5" to 7").
- Why is my boiler not firing even with a new damper? Ensure the damper is rotating freely and the end switch is engaging. A "stuck vent" call often indicates the actuator is not reaching its fully open position.
This item is not eligible for free shipping.
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
Product Information
Shipping & Returns
Shipping & Returns
Description
The Laars RE2071501 Damper Assembly is a critical 4-inch automated vent damper engineered specifically for Laars Mini-Therm JVS-50 and JVT-50 residential hydronic boilers. Operating as a safety and efficiency component, this replacement vent damper prevents the loss of heated air through the flue when the burner is not firing. For seasoned contractors, this HVAC damper assembly is the solution for "stuck vent" errors or ignition failures where the intermittent ignition device (I.I.D.) fails to sequence due to a faulty end switch. The unit includes the 4-inch damper plate and integrated actuator, designed to interface seamlessly with the factory damper wiring harness. By maintaining the thermal chimney effect during the off-cycle, this Laars combustion component improves the seasonal energy efficiency (AFUE) of the Laars JVS/50 system. It is a drop-in OEM replacement part that ensures code-compliant venting and prevents flue gas spillage into the mechanical room.
Key Benefits:
- Optimized Efficiency: Prevents standby heat loss by sealing the flue when the boiler is at rest, maximizing Mini-Therm II performance.
- Direct Compatibility: Factory-spec assembly for 4" venting on Laars JVS-50 and JVT-50 models.
- Reliable Sequencing: Restores electrical continuity in the safety circuit to ensure the main gas valve opens only when the damper is fully retracted.
- Heavy-Duty Construction: Built to withstand high-temperature flue gases and frequent cycling in demanding residential applications.
Common Questions:
- Does this include the wiring harness? This part is the damper assembly and actuator. If your harness is brittle or damaged from excessive heat, we recommend inspecting it before installation.
- Will this fit larger Mini-Therm models? No, the RE2071501 is specifically sized for the 50 MBH unit. Larger JVS/JVT models (75-225) require different damper diameters (5" to 7").
- Why is my boiler not firing even with a new damper? Ensure the damper is rotating freely and the end switch is engaging. A "stuck vent" call often indicates the actuator is not reaching its fully open position.
This item is not eligible for free shipping.
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.
