For anybody considering installing a stove in a new build, it is a good idea to bring in an airvent under the floor to a spot under the stove (where it will be hidden).
For the OP - there is probably a lever on your stove for a damper (there is on most stoves) which causes the opening or restricting of the air intake. Open it out fully before opening the door of the stove, so that the air intake increases and the 'draw' is temporarily maximised.
Incidentally, many people will load a stove up with fuel and then restrict the airflow with the damper to let it simmer\smoulder all evening. You get better combustion (less smoke) if you burn hot: better to have a smallerr amount of fuel and give it enough air to burn well, topping up with small pieces of fuel at regular intervals.