Made with world-leading 14 gauge Swedish Kenthal industrial heating elements. The best heating elements in the world! The thicker gauge makes them rugged and they last much longer than the 16 gauge so common in many furnaces on the market today. Our Hd-2344Ss 1.5 KW 142 Ounce metallurgical smelting furnace is a compact electric furnace for melting scrap, reclaiming, alloying, and refining various metals. Perfect for pouring melted metals in casting operations when making bars or buttons. Works with high-karat gold, silver, copper, brass, and bronze. The electronic feature regulates the temperature by providing full power input to the coil until a selected temp is reached. Important to note, usually when you set temperatures, especially when first heating up the furnace, the actual read-out and temperature reached is going to be 50-100 degrees more than what you set the furnace too. That is perfectly normal. But eventually, the temperature will come back down and stabilize and will hold to a +/- 5F. Setting the temp is easy. It requires you to “set” twice. Plug the unit in (fan comes on) and flip them on the switch. Using the “down” button take the digital display’s number to the temperature you want to set to. For example, gold melts at 1,948°F. So using the “down” button you set the temperature to 1,948°F. You then hit “set”. A screen full of zeros will appear. The next step is to via a combination of “>”, “down”, and “up” buttons set the numerical value to the same as before; in this case 1,948°F. Push “set” button. You have successfully set the temperature.