34.00 Dollar US $ · Reznor 121275 Blocked Vent Switch

Published date: February 10, 2026 6:07 pm

Location: 700 Nicholas BLVD Suite 105 Elk Grove Village IL 60007, chicago, IL, United States

The Reznor 121275 Blocked Vent Switch is a safety control device designed to protect gas-fired HVAC heating equipment from improper venting conditions. It monitors flue gas temperature and draft, automatically interrupting the burner circuit if a vent blockage or backdraft is detected. Commonly used in gas unit heaters and commercial heating systems, this switch helps prevent overheating and hazardous exhaust buildup. Its reliable design enhances operational safety, reduces equipment damage, supports code compliance, and ensures consistent, dependable heating performance.

For an efficient and reliable HVAC system, the Reznor Blocked Vent Switch is a great choice for optimal system performance.

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Visit The Website:
https://www.partshnc.com/stack-flu-block-mr-eco-l275f

  • Reznor 121275 Blocked Vent Switch

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