Propane heating systems are a popular choice for their cleanliness, versatility and affordability. They require routine maintenance to optimize safety and performance.
During regular propane system inspections, technicians check thermocouples to see if they need adjustments or replacements. Learn what thermocouples are used for and how to identify when they need servicing.
Purpose of a Thermocouple
Propane furnaces heat and circulate air throughout duct systems and vents. Each propane heating system with a pilot light features a thermocouple, a temperature-measuring device that plays a significant role in the safe operation of these systems.
What Does a Thermocouple Do?
Thermocouples operate like thermostats to monitor pilot lights. When pilot lights actively burn, the devices keep gas supplies open. If flames go out, thermostats lose their voltage. As a result, gas valves automatically shut off to prevent dangerous buildups of unburned propane gas within systems.
Thermocouples consist of two different metal wires welded together at a junction point. At one end, a metal rod points toward the pilot light’s flame, and the other end attaches to the gas line.
Whenever the junction point heats or cools, a small voltage difference occurs between the wires. The thermocouple measures the voltage difference to determine the temperature.
Why Is Thermocouple Maintenance Important?
Preventive maintenance of propane heating systems can help mitigate risks, identify potential issues early on and prevent costly damage. Technicians conduct detailed inspections to ensure thermocouples and other system components operate properly.
Properly maintained propane heating systems let you stay comfortable all year round — the furnaces provide a reliable hot water supply for everyday tasks such as cooking, cleaning and bathing.
How to Tell If You Need Thermocouple Services
You may need thermocouple services if your pilot light is too low, too high or won’t stay lit. Pilot lights usually extinguish if a thermocouple is too far from the pilot or no longer functions properly.
If you suspect an issue with your thermocouple, it’s best to call experienced technicians to inspect your system. Experts can identify the source of an issue and provide necessary services.
Turn to Foster Fuels for Thermocouple Solutions
Foster Fuels is your full-service provider for propane heating systems. Our company has delivered superior-quality products and services since 1921. We’re the expert technicians you can count on for routine thermocouple maintenance and related solutions.
Contact us online to learn more about propane furnaces and safety devices. We can answer any questions you have and schedule an inspection. If we identify potential issues with your heater and thermocouple, we’ll provide any services needed to restore your system’s safety and efficiency.
