Jonas T./YelpMore reliable than a space heater?Seven years ago, a fire ravaged the original Chava's on 18th and Shotwell. The restaurant's chilaquiles, fresh tortillas, and machaca con huevos had many devotees -- including, if one perky Yelp-er is to be believed, Cheech Marin, who supposedly raved about Chava's back when he used to shoot Nash Bridges on location. We learned about Chava's in 2003, not long after the fire. We were bleary, exhausted, and aching, trying desperately to fight o