BNGAS-- Gas Heater Thermocouple Manufacturer


BNGAS focus on producing high-quality thermocouples for gas fireplace, gas cooker, gas water heaters, and gas boiler. Universal thermocouples and thermocouple kits are also available.


What is the Gas Heater Thermocouple

A thermocouple is an electrical safety device that verifies that the flame of your gas equipment is burning properly, and responds to temperature change by voltage output change.

It is usually used in combination with a pilot burner. If pilot combustion is a necessary safety device in using gas equipment, the thermocouple is the soul of it and it plays a decisive role.


BNGAS® universal gas heater thermocouple fits most pilot burners on 30-millivolt systems. Our gas thermocouple is easy installation and has a long-time service time.

  • It works with the pilot burner for use with gas furnaces, boilers, water heaters, and fireplaces.
  • The adapter can be easily mounted on most pilot burners, including clamp-in, push-in, and screw-in burners.
  • Universal adapter fits clamp-in, push-in, and screw-in-type pilot burners.
  • Long-time service time.
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Product By Bngas Models

Thermocouples can be used in a wide range of scenarios, but you can’t dictate that they can only be used in, for example, gas fireplaces and not in commercial kitchens; you can only apply them flexibly depending on their dimensions and characteristics. You can find most of them on our website.

16 Products Found.

Features of BNGAS® Gas Thermocouple

Wide Applications
Wide Applications

Thermocouples can be widely used in gas stoves, ovens, outdoor/indoor heaters, water heaters, fireplaces, etc.

Wide Temperature Range
Wide Temperature Range

Thermocouple temperature:-200°C~850°C

No-load Potential
No-load Potential

No-load potential: ≥30mv (according to request)

Highly Customizable
Highly Customizable

Shape, size, wire length, and accessories can be customized.

Gas Thermocouple: Definition & Uses in Gas Heating Equipment

A thermocouple is a safety device that works by the temperature change of voltage output.

A thermocouple can produce a small voltage output by two different metals or wires forming a measurement junction at the sensor’s tip on the device.

When two different metals are heating, they can be produced an electrical current.

This voltage will let the gas valve close or open or remain open.

Gas Thermocouple Definition & Uses in
Gas Thermocouple Selection & Installation

Gas Heater Thermocouple Selection & Installation

How to correctly select and install thermocouples is essential to your equipment’s can work stably.

Thermocouples are available in different lengths of connecting copper tubing and are used provided that the thermocouple can be easily made to connect to the gas valve. The thermocouple copper tubing is usually coiled to prevent scratching, kinking, or sharp bending

Troubleshooting Thermocouples

After you have determined that the fault occurred in the Thermocouple, there are generally two most common problems with thermocouples.

  • The head of the Thermocouple is not correctly positioned in the flame.
  • The Thermocouple’s connecting tube is damaged or excessively twisted.

You can get the Gas Pocket Thermocouple Tester from BNGAS.

  1. Insert the Thermocouple into the tester.
  2. Tighten the knurled sleeve until the TC is secured.
  3. Press and hold the white button apply heat to the TC for 20/30 seconds, then release the button. The button will remain held for approx. 20 seconds if the TC is OK.
TC Tester

Choose BNGAS to Custom Gas Heater Thermocouple

Choose BNGAS to Custom Gas Thermocouple
Choose BNGAS to Custom Gas Thermocouple-1

We aim to produce Good-quality and reasonable unit-price gas thermocouples as effortlessly as possible. BNGAS offers a comprehensive range of gas heater parts & products for you.

After 100% self-inspect of our gas heater thermocouple, oven thermocouple, gas hob thermocouple, and pilot thermocouple, we will deliver them to our clients asap.

Banner_Gas Thermocouple Customized Services
BNGAS Gas Thermocouple Customized Services

We have been working in this industry for many years. We offer our customers complete customization of gas thermocouples according to their requirements.

The Gas Heater Thermocouple

Ultimate FAQ Guide

In this guide, you will find all information you need to know about custom gas thermocouples.

Whether you want to choose the best material, the best designs, or different terminals – you will find all information right here.

Keep reading to learn more.

What's the Difference Between Thermopile and Thermocouple?

A thermopile looks like a thermocouple and is used as a safety device for temperature sensing. It consists of multiple thermocouples connected in series to produce more current than a thermocouple. But unlike thermocouples which require direct contact with the object being monitored, it can be used without touching the object. It is important to note that they are not interchangeable with each other.

  • A thermocouple relies on the tip of its sensor to be in direct contact with the object to be measured.

  • A thermopile simply absorbs the infrared (IR) rays emitted by the object’s surface to be measured. No direct contact is required. That is why they are generally painted “black”.

What is Your MOQ of Gas Thermocouple?

Our MOQ is 2,000 pcs each. Volume is always the best way to a cost down.

How can l Get a Quotation?

Please send us your inquiry, and we’ll reply to you within 24 hours.

What is Your Delivery Time of Gas Thermocouple?

Our regular lead time is 30-40 working days. May be extended if there are too many orders waiting to be completed

Can you OEM?

Yes, we have experience in handling OEM/ODM orders.

As an OEM & ODM service provider, our success strongly relies on our customer’s profitability and therefore we are willing to leave this open for further discussion.


Can l get one Sample before placing an order?

We would like to send you a sample for confirmation.

The samples are free, please advise your account for freight collection.

I am a new buyer importing products from China, can you help us complete our purchase?

We have a lot of experience in helping buyers to do this. Please feel free to ask us.

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