That is a good solution Becq, but I wasn't trying to make an Iron Man clone, I was trying to make a power to simulate similar characters, and if we use your method then your stuck using breath weapon.
If your wanting to simulate Iron Man in that way, I would probably use my power set and an Item of Power with Flight, a few refinements for extra enchanted item slots, and a Strength power, possibly with having the mental stress taken to activate powers multiple times simulating his power supply.
Ummm....
If I were GMing, I would not force a character in a super suit to take breath weapons.
If you had regular guns in your suit, I would just say it's a weapon 3 gun... or higher for whatever is appropriate. Carrying a rifle doesn't cost refresh - why would a gun built into a super suit?
If the player wants to go above a weapon 4, then they would have to pay for that weapon with refresh.
The way I would handle it would be to make the PC mortal, but give him stunts/powers that designate the armor.
To put on the Armor, the player must pay fate points every time they put on the armor. This allows the player to tinker with his/her armor and make it more or less powerful without having to actually buy new powers. I would rule that the amount of time it takes to reconfigure the armor would depend on craftsmanship modified by resources.
A human is super armor is NOT supernatural. While they are out of that armor, it makes no sense to me for them to be anything other than a refresh +2 vanilla mortal.
That said, they can't take too many stunts or they won't be able to put on their armor without going into the red for refresh.