
L36-070 Comparison
| photo | price | summary | rating |
|---|---|---|---|
![]() | $13.99 | Condition is New – Open box, Johnstone Supply L36-070 Thermocouple 30", FREE SHIPPING | 100.0% |
| photo | price | summary | rating |
|---|---|---|---|
![]() | $9.99 | Condition is New, Gas Furnace Water Heater 30" Thermocouple Robershaw Johnstone 1900-030 L36-070, FREE SHIPPING | 99.8% |
![]() | $10.99 | Top Pick! Condition is New, NEW OLD STOCK JOHNSTONE 30" UNIVERSAL THERMOCOUPLE L36-070 *Free Shipping*, FREE SHIPPING | 98.1% |
![]() | $6.00 | Condition is New, Johnstone Supply L36-071 Universal Thermocouple,, shipping cost = $5.89 | 98.2% |
![]() | $12.95 | Condition is New, Johnstone L36-070 P60785028K19AT-1830H Stainless Steel Tip 30 Thermocouple, FREE SHIPPING | ![]() |
![]() | $12.99 | Condition is New, Johnstone Supply 30 inch Thermocouple L36-070, FREE SHIPPING | 99.5% |
![]() | $12.00 | Condition is New, NEW Johnstone Supply 30 inch Thermocouple L36-070 with Stainless Steel Tip, shipping cost = $2.00 | 100.0% |
![]() | $7.49 | Condition is New, Johnstone 30 inch Thermocouple L36-070 - For ALL gas Applications Natural and LP, shipping cost = $8.95 | 99.6% |
![]() | $9.88 | Condition is New, Johnstone Supply L36-070 Thermocouple 30", shipping cost = $8.17 | 100.0% |
![]() | $19.99 | Top Pick! Condition is New, NOS Johnstone 30" Thermocouple L36-070 - New Old Stock, FREE SHIPPING | ![]() |
![]() | $19.99 | Condition is New, LOT OF 2 JOHNSTONE L36-070 THERMOCOUPLES 30" ALL GAS APP NATURAL AND LP, FREE SHIPPING | 99.9% |
![]() | $20.00 | Condition is New, Johnstone 30" Thermocouple K19AT-1830H / L36-070 Natural or LP Gas, FREE SHIPPING | 99.8% |
![]() | $12.95 | Condition is New, Johnstone Supply 30" Thermocouple for Gas Applications, shipping cost = $10.00 | 98.3% |
![]() | $31.20 | Top Pick! Condition is New, New Johnstone 30" L36-070 Universal Thermocouple Lot of 4, FREE SHIPPING | 100.0% |
![]() | $30.00 | Condition is New, Johnstone Supply L36-071 Thermocouple 36", shipping cost = $19.96 | 98.2% |

The Johnstone L36-070 30 thermocouple is a crucial component in the measurement and control of temperature in gas applications, specifically for Natural LP (Liquefied Petroleum) gas. This thermocouple is designed and manufactured to meet the highest industry standards for accuracy and reliability.
The L36-070 is a Type K thermocouple, which is widely used for measuring temperatures between -200 C to 1260 C (--328 F to 2300 F). It is constructed using Chromel (Nickel-Chromium alloy) as the hot junction material and Alumel (Nickel-Aluminum alloy) as the cold junction material. This combination offers excellent temperature sensitivity and stability.
The thermocouple's 30mm (1.18 inches) length and 1.5mm (0.06 inches) diameter make it suitable for various temperature measurement applications in Natural LP gas systems. The thermocouple is protected by a thin insulating sheath, which is made of stainless steel for added durability and resistance to corrosion.
The Johnstone L36-070 30 thermocouple comes with a 1-meter (3.28 feet) long, shielded, and twisted pair extension lead. This lead is designed to minimize electromagnetic interference, ensuring accurate temperature readings. The thermocouple also includes a built-in junction box to protect the thermocouple connections, making it easier to connect the thermocouple to temperature measuring instruments.
This thermocouple is suitable for use in various Natural LP gas applications, including temperature control in burner management systems, furnace temperature control, and gas processing systems. The L36-070 30 thermocouple is a reliable and accurate choice for those who require precise temperature measurement in Natural LP gas environments.
Johnstone L36-070 30-inch thermocouple for gas (natural LP) is a crucial component in the safe and efficient operation of gas-fired appliances, such as furnaces, water heaters, and boilers. Let's explore some pros and cons of purchasing this thermocouple to help make an informed decision.
Pros:1. Safety: A thermocouple ensures the safe operation of gas appliances by detecting the presence of a flame and preventing the gas flow if the flame goes out.
2. Durability: Johnstone L36-070 thermocouple is designed with a robust construction, ensuring long-lasting performance.
3. Easy installation: This thermocouple is relatively simple to install, and it can be done without professional assistance, saving time and money.
4. Compatibility: The L36-070 thermocouple is compatible with various gas appliances, making it a versatile option for homeowners.
Cons:1. Cost: Replacing a thermocouple can be an expense, especially if it needs to be replaced frequently.
2. Sensitivity: Thermocouples can be sensitive to their environment, including temperature and humidity, which can impact their performance.
3. Limited lifespan: Despite their durability, thermocouples do not last forever and will eventually need to be replaced.
4. Requires periodic maintenance: Regular inspections and maintenance are essential to ensure the thermocouple is functioning correctly and safely.
Conclusion:Johnstone L36-070 30-inch thermocouple for gas (natural LP) is an essential component for the safe and efficient operation of gas appliances. Its durability, easy installation, and compatibility with various appliances are significant advantages. However, the cost of replacement, sensitivity to environmental factors, and limited lifespan are disadvantages that should be considered. Ultimately, the decision to purchase this thermocouple depends on the individual's budget, the frequency of usage, and their comfort level with DIY installation and maintenance.
Recommendation:If you own a gas-fired appliance and are experiencing issues with the thermocouple, considering purchasing the Johnstone L36-070 30-inch thermocouple for gas (natural LP) is a reasonable choice due to its reliability, durability, and compatibility with various appliances. However, it is essential to remember that regular inspections and maintenance are necessary to ensure the thermocouple is functioning correctly and safely. Additionally, if you are unsure about installing the thermocouple yourself, seeking professional assistance is recommended.
Details:
Johnstone 30 inch Thermocouple L36-070 for all gas applications natural and lp.
specifications maxohvac:
- brand: Johnstone
- mpn: L36-070
- model: Thermocouple
seller maxohvac:
- rating: 99.9%
- city: stanwood, washington
- # reviews: 6584
offer maxohvac:
- prices: $6.00–$31.20
- item condition:
- New – Open box
- New
- started: may 26, 2025
- in stock #: 5
- options: ship-to-home
- sold #: 18
- availability: in stock
shipping maxohvac:
- transit: 4-10 days
- class: standard
- type: fixed
- service: usps first class
- carrier: usps
general maxohvac:
- category: Business & Industrial > Hvac Refrigeration
returns maxohvac:
- paid by: buyer
- policy: returns accepted
- method: money back
- time: 14 days
payments maxohvac:
- other
- credit card: mastercard
- wallet: paypal















