my olympic kiln is computerised and pre-set to fire at whatever temp i want and i can hold at the top also. it is a 50 amp. that is u.k. electrics i do not know what that is in american terms.i also have a smaller paragon kiln that i have to use manually and use mini cones with. i start that one on low for a half hour then turn to medium for an hour then turn to high until it shuts off.the small one runs off a
13 amp socket. if i am in a hurry i can skip the low setting and put straight onto medium and then high (although i would not reccomend this really even though we all do things that are not technically proper)the small kiln fires to 04 in about 3 and a half hours.hope this helps.