Looks like wortmonger has you covered! But to answer your question about 110 v 220, 110 is very slow.... for me its like .5 - 1 degree per minute! You would definitely need insulation to get it to high temps. 220 is recommended, and the wattage varies depending on which element you get. Some are 3000watts but they go up from there. The 110v I have is a 1500watt to put in perspective for you. I recommend higher than 3000watts if you see one but be sure you use thicker gauge wire because it (3000watts) will pull almost 15 amps on a 220v outlet and even more on a 110. Higher wattage elements will pull more. Hope this helps and good luck.