Anyone ever used Jet A fuel in a Kerosene heater?

Jet A fuel is nothing more than kerosene. It may have some additives to keep it from gelling at super cold temperatures but it is just kerosene. I would burn it only if it is cheaper or if it was all that was available. It would be the preferred fuel for your heater because it is super filtered and therefore very clean. It's name sounds like it should be volatile in the extreme, but it is kerosene! Burn away.