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The Empire Comfort Systems R3663 is a thermocouple made for UH-1050 and UH-1150 unit heaters that utilize standing pilots. This thermocouple acts as a crucial safety device. It detects the pilot flame's presence and enables gas flow to the main burner once the pilot is lit. This part is an official replacement from Empire Comfort Systems.
The R3663 thermocouple ensures safe operation of your heaters by allowing gas flow only when the pilot flame is detected.
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