I work from home, so I spend a lot of time in my office. And usually I'm the only one here. Having central heat and air is great, but when there's only one person in one room for 8 - 12 hours a day - it doesn't make a whole lot of sense to heat the whole house. That's why having individual vent free heaters for each room would be great. Or at least in those rooms that are most often used - (office, bedrooms, etc.). Right now I have a cheap portable electric heater - but the wall-mounted natural gas models would be great.