radiant heat / directional radiant heat

hy you all ,

it's a long time since i've sent some time here sorry for my englich(dutch mother thongue) , I've notist that when you put your heatriser in the corner of the barrel you get more radiant heat on the opposite side (btw a circle has no corner) could it be that if you put it all the way up to the barrel it would stay "cool" on that side and you can stay closer to awall without heating too much

Karl De Pauw : Yes ! Big Al

in the same magic of things ,a bachtbox rocketstove has a reduction of +- 29%before the heariser can we do the same thing with a J -tube just hefore the riser on one side to ceate a vortex without choking it ?

that is with p-channel and trip wire incorporated, maybe it is better te ask peter vdb