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| If you know the BTU of the burner and it has an orifice, you can drill it out to the proper size for NG delivered at 1/4 psi. There are charts on the Internet that will show you what size orifice you need.
The attached chart shows a 10,000 btu burner needs an orifice about a size 54 running 7"wc of NAT. Gas.
http://www.hvacredu.net/gas-codes/module2/Gas%20Orifice%20Capacity%...
Edited by baler brian 8/18/2014 21:53
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Natural gas to grill
