Laars Heating Systems RE0066200 100-240F Spst M/R Cap 144 Inch

The Laars Heating Systems RE0066200 is a replacement part for an assortment of HVAC components, including boilers and furnaces. It is a mercury relay cap with a 144-inch capillary tube with an operating temperature range of 100-240 Fahrenheit. This relay cap serves as either a safety switch and a thermostat. The capillary tube monitors variations in temperature in the surrounding environment. When the temperature reaches the desired level, the mercury inside the cap increases, closing the electrical circuit and igniting the heating system. When the temperature falls below the established point, the mercury contracts, breaking the circuit and switching down the heating system. It allows you to regulate the temperature and protects the equipment from overheating, making sure your HVAC system functions responsibly and effectively.