Hitman

I need to fit a fire door frame tomorrow! I've just read the intumescent strip should be on the side where the fire is likely to start ie kitchen, it should be kitchen side. I Need to find out if that’s mandatory as currently fire door opens outward (if going into kitchen) so strip is on the outside. Don’t want to install it and then the fire inspector says its the wrong way. I need to change it as the previous cowboy left it in a right mess