I am wondering if Newton's law of cooling can be applied in scenario where the object is heating the ambient temperature instead of the other way around.
For example a heater has a temp of x and is heating a room of y when will the room be z? Assume the heater's temperature remains constant.
Thank you for any responses.
Your last sentence violates physics. If the object is heating the surroundings, its temperature will decrease. It is often useful to regard one object as infinite, which means that taking heat out of it does not change its temperature. That is always an approximation in the real world, but it can be a useful one. If the object is massive and the coupling to the surroundings small enough, the approximation may be useful. Newton's law of cooling assumes that heat loss is through convection and conduction. Radiation goes as the fourth power of the temperature, so violates the law. You need to assess whether the approximations made render the result useless.