Unless you do some serious work to vent the propane stove to a chimney or ventilate the room very well, DO NOT use it indoors. You run a huge risk of asphyxiation due to carbon monoxide and/or carbon dioxide. It seems like every year a few people around here try using a camping stove or something similar for heat - especially those who came up to the middle South from the deep South or Mexico (yes, I know....) and are surprised by how cold it can get at times. Not very many things sadder than reading about the deaths of an entire family.
Any kind of stove that works by burning wood or any kind of gas or kerosene that you might use for heating or anything but incidental cooking needs to be very well ventilated. Usually it isn't worth using a stove that's not ventilated to a chimney indoors for any length of time because in order to make it safe you have to open too many windows which defeats the purpose.