Lochinvar 100274592 240 Volt Lower T-Stat TST1120
Lochinvar 240V Lower Thermostat (Model TST1120) Genuine OEM replacement thermostat for Lochinvar heating systems. This 240-volt lower thermostat maintains precise temperature control and ensures reliable operation of your boiler or furnace. Direct fit for compatible Lochinvar units. Stock the correct part number 100274592 to avoid compatibility issues and downtime.
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Orders placed by 2:00pm EST will ship same day, except on holidays.
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Product overview
Specifications
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Delivery & Returns
Orders will ship same day if received by 2pm EST.
Upcoming holiday closures: July 3, 2026
All returns are inspected on receipt; credit is issued after condition is confirmed. Credit is issued only for items returned in original, saleable condition after inspection.
FINAL SALE ITEMS ARE NOT ELIGIBLE FOR RETURNS OR EXCHANGES.