How many square feet does a SunStar infrared radiant gas heater cover?

The heater model and capacity are not necessarily a function of the square footage of the area needing to be heated. The model generally is chosen after the Btu/hr heat loss for the building or spot area to be heated has been determined, which is a function of not only the size of the area, but geographic location, building materials, building usage and other factors. Area coverage could be as little as 500 sq. ft for residential garage heaters or as much as 10,000 sq. ft. for a large commercial size heater.