Honeywell Q340A1108/U 48″ Thermocouple 30mV NG/LP Pilot Furnace

SKU: Q340A1108/U

Weight	1 lbs
Dimensions	12 × 11 × 5 in

$43.12

In stock — available to order.

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Quantity	Unit price	Saving
1–4	$43.12	0%
5–9	$40.96	5%
10+	$38.81	10%

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Honeywell Q340A1108/U 48" Thermocouple 30mV NG/LP Pilot Furnace

Specifications & product details

Honeywell / Resideo Q340A1108/U 48″ Thermocouple – 30mV

The Honeywell Q340A1108/U 48-Inch Thermocouple is a universal replacement pilot safety sensor designed for use in natural gas and LP (propane) heating systems.

This thermocouple produces a 30 millivolt output, providing reliable pilot flame detection and safe gas valve operation in standing pilot systems.

Key Features & Benefits

48-inch copper thermocouple lead
30mV output for standard gas control valves
Compatible with screw-in, push-in, and clamp-type pilot burners
Includes universal mounting adapters
Brass threaded connection for secure installation
Ideal for furnace, boiler, water heater, and space heater applications

Applications

Gas furnaces
Boilers
Water heaters
Standing pilot heating appliances
Natural Gas (NG) and Propane (LP) systems

Designed for professional HVAC service and repair, this OEM Honeywell/Resideo thermocouple ensures dependable pilot flame sensing and safe system shutdown if flame loss occurs.

Product details

Part / SKU	Q340A1108/U

Package includes

Honeywell Q340A1108/U 48" Thermocouple 30mV NG/LP Pilot Furnace

Included components and any stated pack quantity are as described in this listing. Optional accessories shown separately are sold separately unless expressly included above.

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