Question regarding safety in the workplace.

One of the practices I work at a couple of days a week is in an old house - which is quite common in the small town where I live. The new owner is making loads of improvements and investments and in the process of purchasing the building.

However, one of their temporary fixes for heating the theater room (12 foot ceilings) is to use an outdoor patio gas heater.

I feel a little uncomfortable with this solution. I'm pretty sure I don't need to outline why.

Thoughts?