As Rob77 stated, that pot won't do what you want. To put 14 amps through a pot, a 1 ohm pot would have to be rated for 200 watts. They do exist. I have a 1 ohm 300W pot and I see even larger ones on sale on ebay. Try searching for < "1 ohm" rheostat > then repeat for 2, 3, etc. ohms.
You could also build up your load out of multiple fixed resistors. This might turn out to be cheaper than a pot. I used to work for a telephone company. To test our large batteries and powerplants we had load boxes that were like switched resistance substitution boxes except instead of clip leads they had really big booster cables and large cooling fans! These things had ratings of many kilowatts. They had a big advantage over solid-state load boxes in that they were totally bulletproof. It was almost impossible to hurt them.
By the way, I don't recommend using incandescent light bulbs as loads due to their very high starting surge.
Ed