If all houses are connected to a natural gas line, how do all the houses in a neighborhood or city not blow up when one catches on fire? - Quora
![Napoleon B42NTRE N/A 22,000 BTU Built-In Direct Vent Natural Gas Fireplace with Safety Barrier and Electric Ignition from the Ascent Series - VentingPipe.com Napoleon B42NTRE N/A 22,000 BTU Built-In Direct Vent Natural Gas Fireplace with Safety Barrier and Electric Ignition from the Ascent Series - VentingPipe.com](https://s3.img-b.com/image/private/c_lpad,f_auto,h_800,t_base,w_800/v3/product/napoleon/napoleon_b42ntre_bedroom.jpg)
Napoleon B42NTRE N/A 22,000 BTU Built-In Direct Vent Natural Gas Fireplace with Safety Barrier and Electric Ignition from the Ascent Series - VentingPipe.com
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