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Posted by ransley on May 3, 2009, 7:34 am
> > Really nothing I guess.
> > We are not plumbers. We are doing this as part of a huge remodel. We ca=
n't
> > use "unions" as such and we know we have to use a left/right connection=
.
> > Personally, I have had bad luck with right/lefts over the years. It alw=
ays
> > seems like one side is too loose when the other is tight. I get tired o=
f
> > fighting it. I always make sure both sides start at the same time and a=
ll
> > that, but it seems like it just never goes on cleanly. It was just me t=
rying
> > to get something done easily and without a problem.
> > > Tim wrote:
> > > ...
> > >> I need to supply gas to a new hybrid water heater. According to the
> > >> manufacturer, it requires a 3/4" input line.
> > >> The gas line comes directly from the gas meter via a 1" line to the =
water
> > >> heater closet. There, it goes into a Tee. The Tee is a 1" (from the
> > >> meter), 3/4" that feeds the rest of the house (furnace and stove), a=
nd
> > >> 1/2" that feeds the existing water heater. Some say I have to remove=
the
> > >> Tee and go with one that gives me a 3/4" line to the rest of the hou=
se
> > >> and a 3/4" line to the water heater. Others say I can just put a bus=
hing
> > >> on the 1/2" line, taking it up to 3/4" and I'll be fine.
> > > ...
> > >> Any thoughts? Go with a new tee or bush up the old one? Or any other
> > >> idea?
> > > ...
> > > What could possibly be so hard about simply putting in a 3/4" tee and
> > > going on?
> > > --
> Your "hybrid" sounds like a mini-tank with tankless heating capacity /
> gas usage. =A0Getting the pipe sized correctly is important to heater
> performance.
> What is the maximum gas consumption of the heater? =A0 I'm guessing
> something in the 200K btu/hr. =A0 =A0Depending on run length and other ga=
s
> demand; 3/4" should be fine
> Do a proper analysis of your gas piping, considering all your current
> & added gas usage...its not that difficult
> google =A0 =A0 =A0natural gas pipe sizing
> and choose the third hit
> or take a look at =A05th hit...its a bit more detailed
> Making up a connection via a "left/right" can be a =A0PITA =A0but if you
> use GOOD quality teflon tape & a couple extra wraps that will be more
> forgiving on the connection. =A0Also, building in some piping compliance
> with make the connections easier. =A0Consider CSST which gives you the
> benefits of "unions" without the arguments from inspectors....well, if
> CSST is allowed in your area.
> cheers
> Bob- Hide quoted text -
> - Show quoted text -
"should be fine" my table shows 1" after 10 ft if I remember it right,
if flow is minimal 1" might be needed for all of it. You can live with
a heating system starved a bit and stay warm, but I dont like cold
showers.
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>into this doing something like electrical or tile or carpentry or something
>else and we get licensed to be able to do it all so we don't have to bring
>in someone who may or may not be more qualified. The fact that we do not
>know EVERYTHING about a given topic doesn't necessarily mean we are not
>qualified. We could debate the "is the general contractor REALLY qualified
>to do everything?" question for 100 years.