Cozy Heating Systems 78109 L260F Manual Reset Blocked Flue Safety Switch

The Cozy Heating Systems 78109 is a blocked flue safety switch designed to protect gas-fired heating equipment from hazardous combustion gas spillage. This critical safety component monitors the flue system for blockages or improper venting that could allow dangerous exhaust gases to enter living spaces.

Key Features:

• L260F rating: Activates at 260°F to detect excessive flue temperatures
• Manual reset design for deliberate safety intervention
• Genuine OEM replacement part for Cozy heating systems
• Detects blocked vents caused by debris, nests, or improper draft
• Automatic shutdown capability prevents carbon monoxide hazards

This switch is installed in the flue system where it can sense excessive heat buildup that occurs when combustion gases cannot properly vent. When the L260F temperature threshold is reached, the switch trips and shuts down the heating unit, requiring manual reset after the underlying issue is resolved. Essential for maintaining safe operation of Cozy wall furnaces, floor furnaces, and direct vent heating equipment.