We have quite a small house and this little unit is perfect to warm up the large open areas. We do have it going for half of the day and then on at night until we go to bed and the house stays nice and warm. The unit is quite and will be sad to see it go soon as we are getting ducted aircon. Would highly recommend though. Ppl may complain of smell but when we had ours installed the guy put an air grill close to the unit which is why we dont smell the unpleasant odours, however when the unit is off we do have to put paper over it to avoid cold air entering the house :-(

This heater produces a very strong smell of combustion gases that it lets off into the house since it's unflued. In a moderately large area and even with cross ventilation as is the recommendation, I experienced a headache within quite a short time. Whilst I am a sensitive individual, I would recommend instead to look at a flued gas heater or just use electric heating especially if small children, pregnant women or elderly persons live in the house.