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Posted by marson on April 14, 2007, 4:56 pm
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> >> >> >> On Sat, 14 Apr 2007 02:52:33 GMT, mchenry
> >> >> >> wrote:
>
> >> >> >> >Can anyone advise me on the installation of hydronic coils before
> >> >> >> >a
> >> >> >> >slab
> >> >> >> >is poured ?
>
> >> >> >> >We are building a new home and I have costed the Rehau 16mm PEX
> >> >> >> >totalling
> >> >> >> >$6,000 for 550 sqm. This is working on 5m per sqm equalling 2750m.
>
> >> >> >> >On a sqm basis this is approx $11 however every quotation I have
> >> >> >> >received
> >> >> >> >is approx $50-$55 per sqm to supply & lay the pipe prior to having
> >> >> >> >the
> >> >> >> >slab poured.
>
> >> >> >> >So it will cost me upwards of $21,450 for the installer to design
> >> >> >> >the
> >> >> >> >layout and attach the pipe to the mesh prior to the pour !
>
> >> >> >> >As it cannot be rocket science and well worth the savings are
> >> >> >> >there
> >> >> >> >any
> >> >> >> >DIY guides available for potential pitfalls and design etc.
>
> >> >> >> >Thanks in advance...
>
> >> >> >> Think about it junior. $21,450 to do your job. A lot of money? I
> >> >> >> wonder why? You're thinking $11 per sqm but low and behold all the
> >> >> >> professionals are right about the same at $50 to $55 per sqm. Gee,
> >> >> >> maybe they all got together and fixed their prices just so they
> >> >> >> could
> >> >> >> screw you? Seems logical.......................you dolt.
> >> >> >> Keep this in mind. YOU are going to design and install your own
> >> >> >> $21,450 job that of which you have never done before. I hope you
> >> >> >> understand how much fun busting up all that concrete and redoing it
> >> >> >> again the right way will cost. It ought to make $21,450 look like
> >> >> >> pocket change.
> >> >> >> Bubba
>
> >> >> > Please provide example of a screw up that would cause a slab with
> >> >> > radiant heat to need to be jackhammered up.
>
> >> >> do your own homework... and as far as the screw ups?? you'll find out
> >> >> soon
> >> >> enough when you DIY.
> >> >> Its no rocket science, its more complicated than that.
>
> >> > examples of screw ups?
>
> >> cracks, kinks, holes, leaks, loose fittings, bad connections, sizes,
> >> lengths, placement, attachment, depth, insulation, ignornace, stupidity,
> >> etc. and once the slab is poured, if there is a problem, your fucked. If
> >> its
> >> done by a pro, they have insurance to take care of their mistakes, and
> >> they
> >> will make it right on their dime.
>
> >> Now go piss up a rope and suck on the bitter end.
>
> > Well, I am a contractor, not a plumber. I have personally installed 6
> > hydronic radiant floor systems. I have two friends who have done
> > their own installs (non-contractors), and can think of about 4 other
> > projects that were done by contractors, not plumbers. All have
> > worked. twice I've installed systems with a plumber working by my
> > side. The plumber was the first to tell me it ain't rocket science.
> > I've never seen pex cracked. I air test mine, though when I did it
> > with a plumber, he didn't air test his. He didn't inspect it for
> > cracks, either. I've read that if you kink pex, it can be returned to
> > it's original shape with a torch. But in the 6 I have done, I have
> > found that kinks are easy to avoid if you use common sense. I've never
> > seen anyone get a kink. If you're stupid enough to put a hole in it
> > while you are installing it, then you truly are stupid. Course, it is
> > possible that it will be damaged during the pour, but that is just as
> > likely as if you had a team of master plumbers installing the stuff.
> > Loose fitting and bad connections only occur around fittings and
> > fittings don't get buried in the pour. Attachment, depth, insulation
> > should be dealt with by the designer. I'm not going to suggest the OP
> > does this cold without some design help. But for a competent DIYer,
> > it's one of the easier parts of the building process.
>
> > In the last 15 years or so that radiant slabs have been around my
> > area, I know of two major screw ups. One, a DIYer tried to test a
> > radiant heat system he had installed in an outside slab with water
> > from a garden hose, and left the water in over the winter. Ruined it
> > through stupidity. Another time, a professional plumber on a house I
> > was building fired up the system while the slab was still too cold,
> > and froze a loop, though it thawed and all was well.
>
> > telling me to "go piss up a rope" only undermines your credibility.
>
> Actually not, because you come trolling in here like a homeowner that just
> thinks he is gonna DIY and "save a bundle" without giving *ANY* indication
> of your vocation, or experience. This leads us to believe that your nothing
> more than some computer weenie or even worse, and EE. If your are
> experienced as you say, then you already know what possible problems your
> going to run into and how to avoid them.
>
> Now, troll.....I refer you to the last statement in my previous post.
>
> *PLONK*
and when did I represent myself as a homeowner? You ain't doing your
credibility any good here.
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