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LPG supply line diameters

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Subject Author Date
LPG supply line diameters Bob 12-24-2006
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Posted by Bob on December 28, 2006, 4:52 pm
On Wed, 27 Dec 2006 20:46:15 -0500, Art wrote:


>>
> Be there for the inspection and ask questions. Specifically "Was it done
> right?" or "Would you be okay with this in your house?". Most inspectors I
> have met are nice guys that don't mind telling you what they think.
> Passing code and having a good job are two different things and every
> inspector knows that.

I got a guy from the gas company to take a look. My worries were mostly
due to my own ignorance about how LPG installations work.

My 1/2 inch supply line os OK since it is in the "high pressure" (2 PSI)
section. This will get reduced to 6-8 ounces at the manifold with a
regulator; thus the smaller line (at high pressure) can adequately supply
the multiple lines leaving the manifold (at low pressure).

At entry to the house there will be a regulator reducing the pressure from
10 PSI to 2 PSI (to feed the manifold) and another regulator to get low
pressure to the hot water heater. The tank itself will have a regulator to
supply 10 PSI to the house.

The guy from the gas company did say he would do things a little
differently: He wouldn't split off the hot water heater at entry to the
house but instead run a line from the manifold back to the water heater,
eliminating the need for one of the regulators.

Bob

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