When it comes to heating, security is a priority. Based on statistics, at least 25,000 residential fires per year associated with its use. About 6,000 homeowners have burns caused by contact with hot surfaces of this device. Therefore the security of vital importance. When the purchase and installation of a unit for your room, consider the following: Latest Space Heater current model, most stoves have security features. Since overheating is usually the problem using this unit, choose one with an automatic shutoff feature. This feature turns off when the unit is too hot and avoid overheating. Most newer models of today have this safety feature and function of thermostat. Highly recommended, over Underwriter's Laboratory (UL) label.Space heater size and heater safety issues is a problem. When heating a room, oversized heaters are highly recommended. The size of the heater depends on the room or space heating. Typically, portable stove used to heat a room. They can either a model or a radiant heating convector. Note that the radiant energy required to tend to heat a whole room to avoid. Hence they are only effective when in a room for a few less space and ventilation hours.Vented Heater These heaters can be vented or vent free. Free fuel heaters are not recommended ventilation in the house. Apparently, free ventilation units are suitable for the production of undesirable combustion products such as nitrogen oxides, carbon monoxide and water vapor. For security reasons, go to vent stoves. For outdoor use, go for closed heaters because they are much safer to use and operate more efficiently.