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-   -   fire pit lava rock (http://www.diychatroom.com/f16/fire-pit-lava-rock-98145/)

Andrew Alex 03-12-2011 05:21 PM

fire pit lava rock
 
Building a 36" diameter, 14" high natural gas fire pit. The fire feature I'm putting in is a round 30" ring, with 2" of reflective glass as the top surface layer of the pit (vs. having a log set).

The company recommended the 2" of glass at a cost of approx $500, and then filler for the remaining 12" below using lava rock. Every inch of filler requires 30 lbs of lava rock. I will need 360 lbs of lava rock to fill the 12" and it will cost $360.

My question: Why can't I use some kind of gravel / pebble rock for all or most the 12" of fill (at least 10" as that's about where the burner will sit)???..... and then it will be a fraction of the cost.

Thx,
Andy

casper129 03-15-2011 01:45 AM

Doesn't really answer your question, but if you're located near Wisconsin, I have all the lava rock you could want, for free :) I just want it out of my yard...

heatycooly 03-15-2011 06:33 AM

When using other rocks they can hest up and pop out of the pit also can restrict gas flow


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