National boilers, radiators, and specialties: catalog no. 26 (1920)
National Radiator Company · National Radiator Company · leaf 81
where hot water is required through-out the year. Prevents water boiling and is a fuel saver. Ifnecessary can be made to a range of 400 degrees Fahrenheit. Size of thermostat, 4 inches. Length of extension, 2 inches.If longer extension is required, it can be furnished at an additionalcharge. List…
