Thermocouple F273117 for Propane Tank Top Heaters - Durable

In this review the Thermocouple F273117 is assessed as a practical replacement part for propane tank top heaters and other gas appliances. It is aimed at homeowners, camping enthusiasts, and service technicians who need a reliable thermocouple to restore pilot safety and flame sensing. The single biggest reason to buy is its direct compatibility with common Mr. Heater tank top models and its long 24 in length, which eliminates the need to jury-rig connections during repair. This review focuses on fit, materials, and ease of installation based on the product description.

Key Features

• Wide compatibility: Works with Mr. Heater tank top models MH12C, MH12T, MH24T and MH42T and can be used on patio heaters, grills and other gas appliances for flexible replacement options.
• Direct replacement parts: Replaces multiple model numbers such as F273100 and F273300 so technicians can swap the part without modifying the heater assembly.
• Secure fit: M81 threaded thermocouple tip and two included nuts provide a stable, threaded connection that prevents loosening under normal vibration and handling.
• Long length for routing: The 24 in total length gives extra reach to route the lead away from hot surfaces or to reach control modules without splicing.
• Durable materials: Constructed from EP-NiGr and EN-CuNi, the element is rated for a broad temperature range to withstand demanding outdoor heating conditions.
• Performance spec: Designed to produce >20mV output with resistance in the 5-50M range for reliable thermopile/pilot sensing in compatible systems.

Who It's For

This thermocouple is best for DIY homeowners maintaining a patio heater or tank top heater and for field technicians working on common Mr. Heater models. The included nuts and M81 threading mean it is ready for straightforward replacement without special tooling, so those familiar with basic gas appliance service will find it convenient.

It is less appropriate for systems that require a different thread size or significantly longer leads than 24 in, or for proprietary heaters that use nonstandard sensing assemblies; buyers should confirm thread and length compatibility before purchasing.

Pros & Cons

Pros

• Broad compatibility with several Mr. Heater tank top models and common gas appliances for flexible use.
• 24 in length and included nuts make installation and routing easier for repairs.
• Durable EP-NiGr and EN-CuNi construction and wide operating temperature range for outdoor use.

Cons

• Only one thread size (M81) is provided, so it will not fit heaters that use a different fitting without an adapter.

Specifications

Model	F273117
Compatible heater models	MH12C, MH12T, MH24T, MH42T
Thread size	M81
Total length	24 in
Materials	EP-NiGr and EN-CuNi
Operating temperature	-200C to 850C
Voltage output / Resistance	>20mV / 5-50M

Our Verdict

The Thermocouple F273117 is a solid, cost-effective replacement for anyone servicing Mr. Heater tank top models or similar gas appliances. Its correct thread size, generous 24 in length, and rugged materials make it a practical choice for routine repairs and outdoor heating gear maintenance, offering good value for a straightforward swap-in part.

Frequently Asked Questions

Will this replace other model numbers?
Yes, it is listed as compatible with replacement parts such as F273100, F273105, F273200 and others noted in the product description.

Is the length long enough for routing?
The thermocouple is 24 in long, which is sufficient for most tank top heater installations and allows routing to controls without splicing.

What thread does it use?
The tip uses an M81 thread and comes with two nuts to secure installation.