FIRE GRATE SYSTEM FOR A LOW-EMISSION OUTDOOR FIRE RING

摘要

The present invention is directed to several embodiments or variations of a fire grate system for a low-emission outdoor fire pit or fire ring. Several of these variations use the same fundamental fire grate framework within the system and are adapted burn liquefied petroleum gas (LPG), a common example of which is propane. A first embodiment of the invention may simulate a wood fire without burning wood by securely attaching artificial ceramic (or similarly constructed) fire logs to a LPG gas-burning fire grate framework. A second, alternative embodiment of the present invention is a gas/wood hybrid system and that uses LPG fuel to reduce emissions from a wood fire.

主权项

1. A fire grate system for a low-emission outdoor fire ring, the fire grate system comprising:
a grate structure; a gas manifold attached to the grate structure and fluidly connectible to a gas supply, the gas manifold having a plurality of gas distribution apertures disposed therein and operative to distribute gas flowing therethrough into a primary combustion zone; and an air outlet manifold cooperatively engaged to the gas manifold, the air outlet manifold having a plurality of air distribution apertures disposed therein and operative to distribute air flowing therethrough into a secondary combustion zone proximate the primary combustion zone.