Power vent

Does increasing draft burn coal hotter and quicker
If I have a half a bed of coal burning
And increase my draft by triple what will that do to the bed of coal
Same feed rate.

Increasing your draft is not only dangerous it will only pull all your heat out the flue to the great outdoors. Your stove is meant to operate at -.02 to-.04 draft setting. If your draft is to low you won't get the products of combustion out of your home wwhich means CO entering the living space which is deadly. If you have the draft 3 times the recommended setting you will most likely end up with a hopper fire.

You missed the point thanks anyway
This is my 4th heating season.

I got what you were saying the first time and the answer still is the only effect increasing your powervent draft will have is pull your heat to the outside. With a stove that has fan forced combustion air and mechanical feed you are limited by the amount of coal in the combustion area set by your feed rate. If you can force more combustion air into the plenum below your grate you can increase the burn temp for the same volume of coal that is actively burning. However to realize any gain you would need to increase the coal feed proportionally to added air and it has its limits.