This Aquastat provides Controller functions, and serves as a Thermostat and Water Level Switch. This product meets specifications for many outdoor boiler models including GX10, GX15, and GX30.
This controller includes the temperature probe cable, 9.5 feet long. The brass temperature probe is 1.5 inches long, and 0.25 inches in diameter. It is recommended to secure temperature probe in thermo-well using high-temp caulk available here.
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One of the most important steps in prolonging the life of your outdoor boiler is to ensure that the water in your boiler is not corroding the steel. Water starts to eat holes in steel immediately upon contact (through rust corrosion) unless properly treated. We test your outdoor boiler water for free!