or a "Flame Failure" where the valve fails to open despite receiving the proper 24V signal

Simplified Maintenance: Direct replacement design reduces labor time during damper actuator overhauls

preventing false error codes

Durable Polymer Construction: Engineered to withstand high-humidity environments without corrosion or moisture absorption

Quiet Operation: Fan-powered design is optimized for noise reduction

Laars Heating Systems 2400-451 Valve Kit 323269-701 or a "Flame Failure" whereThe Laars Heating Systems 2400 451 Valve Kit is a critical OEM component designed specifically for boiler condensation prevention. As a veteran technician, you know that maintaining proper return water temperatures is essential to protecting the heat exchanger from the corrosive effects of flue gas condensation. This anti condensing valve kit acts as a thermal bypass, ensuring the Laars Pennant boiler or Endurance series unit reaches a safe operating