You light a fire to keep yourself warm and use a portable stove to make yourself a hot meal.
您生火取暖,并使用便携式炉灶为自己做一顿热饭。
英语百科
Portable stove
A portable stove is a cooking stove specially designed to be portable and lightweight, used in camping, picnicking, backpacking, or other use in remote locations where an easily transportable means of cooking or heating is needed. Portable stoves can be used in diverse situations, such as for outdoor food service and catering and in field hospitals.