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The NSI Industries SHL501 is an essential limit thermostat for gas furnaces. This device is designed specifically for controlling furnace operation. It opens at one hundred seventy degrees Fahrenheit and closes at one hundred thirty degrees Fahrenheit.
This thermostat is a direct OEM replacement, ideal for plenum thermostat applications.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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