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Cozy Heaters 84166 Blocked Flue Switch

Original price was: $41.82.Current price is: $32.56.

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SKU: 84166 Category:

The Cozy Heaters 84166 Blocked Flue Switch is a genuine OEM safety component engineered for use in Cozy wall furnace systems. Designed to continuously monitor exhaust flow and venting conditions, this switch provides a critical layer of protection for both the heating system and the occupants of the home.

How It Works

When the switch detects a restricted or blocked flue condition — meaning combustion gases are not safely exiting the system — it automatically shuts down the furnace. This prevents the dangerous buildup of harmful gases, including carbon monoxide, inside the living space. Once tripped, the switch requires a manual reset after the underlying venting issue has been identified and corrected, ensuring the system is not restarted until it is safe to do so.

Key Features
  • Genuine OEM replacement part for Cozy wall furnace systems
  • Monitors flue conditions to detect restricted or blocked venting
  • Automatically shuts down the furnace upon detecting unsafe exhaust flow
  • Helps prevent carbon monoxide buildup caused by improper venting
  • Manual reset design ensures venting issues are resolved before restart
  • Protects both the heating system and the home
Specifications
  • SKU: 84166
  • Brand: Cozy Heaters
  • Part Type: Blocked Flue Switch (Safety Limit Switch)
  • Part Classification: Genuine OEM Replacement Component
  • Reset Type: Manual
  • Compatible Equipment: Cozy Wall Furnace Systems