The amount of heat your fire pit generates depends on several factors. The type of fuel, the structure of the fire pit, size, and circumstances are all factors. The best way to optimize your fire pit heat is by adjusting your flame’s height. Some propane fire pits have this as a feature that syncs with electronic ignition. With wood-burning or charcoal fire pits, this can be done by adding something like lava rocks. Keep in mind that this should always be done slowly and safely. Propane pits are also rated at a maximum BTU output, so be aware of this before buying.