A San Diego-based company called Happy Caveman has designed a product that can keep you warm when traditional campfires aren't an option. It's currently seeking backing on Kickstarter.

The designers at Happy Caveman argue that even when there is no fire ban, a wood fire isn't necessarily the best option. Collecting and chopping firewood is a lot of work, not to mention the smoke and smell that can stay in your clothes for days. A propane firepit solves some of these problems, but it provides less warmth: much of the heat escapes upward through its wide, open surface rather than reaching people sitting around it.

The Happy Caveman Campfire is designed to address all of those issues. It doesn't need firewood, doesn't require maintenance, produces no smoke, and keeps more of the heat concentrated around it. The creators basically adopted the principle of a traditional wood fire: hot coals are what radiate heat and keep you warm, not the flames.