IS THERE A DANGER OF CONDENSATION AND CARBON MONOXIDE WITH VENT-FREE APPLIANCES?
Improper use of a gas appliance usually involves one of two misuses: • not sufficiently venting the room or area by cracking a window or keeping a door open to a wider area • running the appliance continuously If you misuse a vent-free gas appliance you can develop a situation that certain people who complain about vent-free heaters themselves cause: