In 1999 - 2012 I wrote articles for an Australian website.. Here is one of them
Far be it for me to say "I told you so" but here we go with another plastic piping failure.
Now I am wondering who decided plastic should even be considered for heating?
I was under the impression that ANYTHING that is a good conductor of electricity is also a GREAT conductor of heat.
I want to see who is pushing this concept and who is also pushing "basic business advice" and what is lacking in both these thoughts.
First of all, I still think radiant heating is a good system as I have worked on systems over 80 years old. What this old system had going for it was a common-sense installation.
The US Postal Service has a main GPO in Manhattan using both hydronic and steam heating in this one building. The key to the steel pipe schedule 40 slab heating is simplicity in installation.
It is called "Ceiling Rads."
The old-timers had the common decency to worry about the next generation of plumbers and made the piping accessible for INSPECTION and REPAIR. It doesn't take a rocket scientist to know the following:
Cement is a poor conductor of electricity and THUS a poor conductor of heat, otherwise, we would be cooking with stone pots, Correct?
These old-timers installed these Ceiling Rads on the ceiling. It seems they liked TRUTH and honesty in those days and plumbers did plumbing. They had real pride in their workmanship.
The heat from these ceiling radiators warmed the floor above them BUT because the floors are thick the hot air was also forced to "circulate" down as the rads threw off more heat than the concrete could absorb (floors bad conductor; air better huh).
Now when the plastic fiasco hit, everyone was caught holding the bag and radiant heating took a beating.
Now the contractors are holding the bag (told you so) As the manufacturer's product wasn't installed properly according to the manufacturer. As heating guys are NOTORIOUS for not having codes or licenses or any Bonifide apprenticeship training (unlike steamfitters/Plumbers/Gas fitters)
Suppose the "heating experts" thought about this.
On the basement slab, leave NO pipes buried but install long-lasting Cast Iron baseboard all along the outside walls.
Separate Zone as you don't want to mix Copper and Cast Iron in the same zone, as the copper gives up the heat much faster, But CI heat holds longer.
(Plastic giving up heat?? OK then why have plastic on metal handles? COMMON sense).
Then on the floor above install Quality Great conducting copper tubing between the joists. Put fiberglass with aluminum foil under this copper tubing to reflect the heat up towards the BAD conducting flooring materials.
Now if this piping system should leak, guess what folks? We have accessibility.
Think about it, this piping is just like the water piping, with no vapor barriers needed, no special "training" no NOTHING. Just easy to maintain/inspect systems.
The post office ceiling rads are black steel supply lines and cast iron radiators. It sure outlasted the state of the ART plastic stuff with NO SPECIAL training. Seems the dead guys knew something about integrity in installations as THEY were PROUD of their work and didn't try to hide it or bury it. They actually wanted folks to see their work of art.
When I walk through these hallways, looking up, I marvel at how these folks installed systems that last and last before we put a bloke on the moon.
Cutting corners will always come back to bite you. Labor is expensive BUT trying to use any material because "it is faster" is not the most brilliant thing to do IMHO.
I still use schedule 40 black pipe for ALL my gas and steam work. I use copper TYPE "L" strictly for my hydronic heating even though I could get away legally with M tubing.
As more and more "state of the art" systems fails, we all lose credibility.
The general public are the ones I feel so sorry for because they trusted someone to "do the right thing," and now they are sitting on pins and needles waiting for their heating system to fail also.
The CDA does ask about the pH values of the water flowing through their piping.
We in New York are lucky as we had the Levitt houses failures to learn from But now we have state of the art high tech failures happening that ONLY a "plumber" can make right.
All we do is isolate the underground (slab) piping system and run proven quality materials like black steel with good old cast iron longevity baseboard.
Common sense will prevail in the accessibility of anything mechanical. Would anyone buy a car where you can't get at any of the piping or electrical components?
Long live black steel and copper tubing and the honest term "plumbers". Still a very respected profession.