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Furnace Thermostat With Manual Reset, 135°F Cut Out Temperature, SRL135

The Furnace Thermostat With Manual Reset, 135°F Cut Out Temperature (SRL135) is a simple, hard-wired thermostat that shuts off heating at 135°F and requires a manual reset after a high-temperature shutdown. Priced at $15.89, it’s ideal for basic furnace protection in single-family homes or small rental units.

$15.89

● In stock

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Price and availability may change. Click to see current details on Newegg.

Key features

  • Manual reset after high-temp shutdown
  • 135°F cut-out protects furnace
  • Hard-wired, no batteries needed
  • Compact design fits standard openings
  • Works with most gas and electric furnaces
  • Affordable safety solution

Pros

  • +Simple installation
  • +Low price point
  • +Reliable temperature cut-out
  • +No battery replacement
  • +Durable metal housing
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Cons

  • No programmable scheduling
  • Manual reset required after shutdown
  • Lacks Wi-Fi connectivity

About Furnace Thermostat With Manual Reset, 135°F Cut Out Temperature, SRL135

What is Furnace Thermostat With Manual Reset, 135°F Cut Out Temperature, SRL135?

The SRL135 is a manual-reset thermostat designed for residential heating systems. It monitors furnace temperature and automatically cuts power when the unit reaches 135°F, preventing overheating. After a shutdown, the user must press the reset button to resume operation, ensuring safety and reducing wear on the furnace.

Key features

  • Manual reset — requires user intervention after high-temp shutdown.
  • 135°F cut-out — protects furnace from overheating.
  • Hard-wired installation — reliable connection without batteries.
  • Compact housing — fits standard thermostat openings.
  • Universal compatibility — works with most gas and electric furnaces.

Who is Furnace Thermostat With Manual Reset, 135°F Cut Out Temperature, SRL135 for?

This thermostat suits homeowners, property managers, and DIY enthusiasts who need a low-cost, reliable safety device for a single-stage furnace. It’s especially useful in older homes where a simple cut-out is preferred over programmable smart thermostats.

How does Furnace Thermostat With Manual Reset, 135°F Cut Out Temperature, SRL135 compare?

Compared with programmable or Wi-Fi thermostats, the SRL135 offers fewer features but excels in durability and straightforward operation. Its manual reset ensures the user is aware of a fault, whereas advanced units may mask issues with automatic recovery.

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Best use cases

  • Protecting a single-stage furnace in a rental property
  • Adding safety to an older home heating system
  • Backup thermostat for vacation homes
  • DIY furnace upgrades in small apartments
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Is Furnace Thermostat With Manual Reset, 135°F Cut Out Temperature, SRL135 right for you?

Choose the SRL135 if you need a straightforward, low-cost safety thermostat for a single-stage furnace. It’s best for DIY installers comfortable with basic wiring. If you require programmable schedules, remote control, or smart-home integration, consider a Wi-Fi thermostat instead.

How it compares: Unlike programmable or smart thermostats, the SRL135 offers only a manual reset and fixed 135°F cut-out, making it a rugged, low-maintenance option for basic furnace protection.

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Frequently Asked Questions

What does the manual reset function do?

The manual reset requires you to press a button after the thermostat cuts power at 135°F, confirming the furnace is safe before it resumes operation.

Does this thermostat work with electric furnaces?

Yes, the SRL135 is compatible with both gas and electric furnaces, provided the system uses a standard 24-V control circuit.

How is the 135°F cut-out temperature set?

The cut-out temperature is fixed at 135°F and cannot be adjusted; it is calibrated at the factory to protect most residential furnaces.

Is the thermostat battery-free?

Correct, the SRL135 is hard-wired to the furnace’s control board and does not rely on batteries, eliminating the need for periodic replacements.

Can I install this thermostat myself?

Installation is straightforward for anyone familiar with basic electrical wiring; however, if you are uncomfortable working with furnace wiring, professional installation is recommended.

How much does Furnace Thermostat With Manual Reset, 135°F Cut Out Temperature, SRL135 cost?

Furnace Thermostat With Manual Reset, 135°F Cut Out Temperature, SRL135 is $15.89 at Newegg. Prices may change — click through to Newegg for the latest.

Is Furnace Thermostat With Manual Reset, 135°F Cut Out Temperature, SRL135 in stock at Newegg?

Yes, Furnace Thermostat With Manual Reset, 135°F Cut Out Temperature, SRL135 is currently in stock at Newegg.

Specifications

Product Type
Household Appliances~~Climate Control Appliances
Category
Home & Garden
SKU
9SIAGVGABG0968
Last updated Aug 24, 2026