Natural gas, like lava, is formed deep within the earth and requires a heavy amount of processing before it can be used to power a grill. Secure your heating and cooking source with today's Groupon: for $250, you get an automatic earthquake gas-shutoff valve for gas lines 0.75"–1.25” plus installation from Andreas Fault Property Services (a $500 value). This Groupon is valid for homes within a 30-mile radius of the San Diego city center.

Andreas Fault Property Services' crew of licensed and insured professionals draws on 30 years of combined experience to install gas-shutoff valves in such notable facilities as the Amtrak building and the Los Angeles Coliseum. An automatic gas-shutoff valve instantly stops gas flow in the event of an earthquake with a magnitude of 5.4 or greater to prevent leaks and protect your family, valuables, and vintage film-reel collections. With today’s deal, well-trained technicians will arrive on the scene and immediately examine the quality and location of the gas meter, which must be located next to the home, before installing the valve onto 0.75"–1.25” house-line pipes. Each valve carries a 30-year manufacturer's warranty and a one-year installation warranty, which protects the system against accidental trippings.