Skip to main content
Most in-stock orders ship same or next business day · 16,700+ parts from 100+ brands Email quotes@globalpartsupply.com
Reznor 121275 Stack Flue Block Manual Reset 275°F

Reznor 121275 Stack Flue Block Manual Reset 275°F

Reznor

$32.95

In Stock

Write a Review
SKU:
121275
Adding to cart… The item has been added

30-day returns on most unused, uninstalled parts Secure checkout with cards, PayPal or Google Pay Questions? quotes@globalpartsupply.com

Flat-rate shipping. The same price to anywhere in the 50 states.

Ships same or next business day · UPS Ground or comparable carrier, typically 1–5 business days.

Shipping details

Specifications

Product Type:
Stack Flue Block / Limit Switch
Subcategory:
Temperature Limit Switch
Application:
Commercial
System Type:
Furnace, Gas Heater, Rooftop Unit
Installation Type:
OEM Replacement
Setpoint Range:
275°F
Fuel Type:
Natural Gas
Control Type:
Non-Programmable
The Reznor 121275 is a blocked flue stack safety device for commercial heating systems that prevents overheating and equipment damage by detecting excessive flue temperatures. It features a manual reset switch and ECO (Energy Cut-Off) function that activates at 275°F to shut down the unit when airflow is blocked. Designed for Reznor HVAC systems, it improves safety and extends equipment life by identifying ventilation problems early.
!