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I have a 1" buried PE gas line that I'd like to tap into for a gas firepit. The gas line supplies a few other things in the yard, notably a 400kbtu pool heater. From research, it seems undersized for this load, so while the heater seems to work OK, my assumption is that I don't want to do anything to further reduce flow.

The easiest DIY approach is to use a compression fitting like this one:

IPS compression Tee fitting

My concern is that it requires stiffeners (white in this picture) be added to the ID of each end of the pipe, which will inherently limit flow a bit. My question is: Is it possible to use this type of compression fitting without a stiffener?

My fallback is to use fusion fittings, which do not reduce the ID but require the rental of a special tool and require some skill to get right.

HikeOnPast
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1 Answers1

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No. One must follow the manufacturer's instructions for installation of fittings; here is a sample section from one:

enter image description here

According to the same manufacturer, in recent years many gas companies have upped the gas supply pressure at the meter, so you may have plenty of supply in a 1 inch pipe, but may also have to install an inline line pressure regulator. As they write, you need to contact your gas company to find out the exact situation for your supply.

enter image description here

Armand
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