Endless Summer has designed a line of Patio Heaters that make adding some additional warmth to a cool summer or fall evening a cinch. Patio heaters are a convenient and cost effective way to evenly distribute heat and take the edge off, so your outdoor season can be longer. These heaters range in BTUs from 11,000 to 40,000 and can heat a circle of 10 ft. to 20 ft. These patio heaters are great for the deck or patio or even poolside. The come with an automatic shut-off switch to provide safety in case they are bumped or tilted and come with durable construction.