I have used bajaj heater for 2 yrs and found to many problems in that.
Like first it blow warm air which is very bad for our health if it flow directly to our face cause less oxygen value.
We can not turn it onn for a long time means we can not on it for whole night as its air is not healty.
We can not put it or blow it in a close room otherwise u can cause cough and sneeze problem.
Its body is very heavy and can not carry by a old man as it is hard to move it from one place to other.
Not provide enough heat in medium level.