Workmanship
There are often existing boiler installs where I know exactly who did the work by their piping workmanship.
This guy was a perfectionist and it stands head and shoulders above anyone else’s. From him, I learned to install copper x male unions on relief valves and female unions on x-tanks. It makes the next guy’s job so much easier.
But I still can’t cut insulation like he does.
Two btu per sq ft for degree difference for a slab
Comments
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yeah, that is very nice work. Making it easier for the next guy is the finest way to show your craftsmanship.
4 -
Very nicely done!
What's with the ground wire on the tank?
Trying to squeeze the best out of a Weil-McLain JB-5 running a 1912 1 pipe system.0 -
Some locations want a bond wire between hot and cold. I am not sure if it is a NEC requirement……….yet.
Its to make sure the HW is grounded since there is plastic everywhere now.
2 -
It certainly is refreshing to see such attention to detail. Even the bonding wire is nicely shaped! Thanks 😊
Yours, Larry
0 -
Why a union on the expansion tank if it is small enough to unscrew?
1 -
I don't think those TPRV's are code compliant with all of those 90°'s in the piping and fittings beyond them.
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Way better than this slop I found last week. The mixing valve controller transformer sits unmounted on top of the box, has never been functional in 4 years. Flues are poorly supported with intake Y's on their sides. The clay floor sink is acid mush. The tape shot shows the location between a cold main 4" tee and the 2" cold side tailpiece of the mixer. There should be a recirculation balance tee and a check valve there. Found the both vfd pressure booster pumps running at 100% making hot water with friction. The list could go on….. sorry I had to tell somebody. I feel better now. Regarding your post, it's nice to see those clean joints and the pipe insulation fitted so well, it doesn't even need any electrical tape!
1 -
You can undo the union with the tank still strapped in. If you have no union, you have to unstrap the tank first before you start unthreading it and if you've ever tried to manage a waterlogged x-tank, it feels like it's filled with lead.
Secondly, when you reinstall the new tank, it can be very hard to start the threads.Somehow, aligning the tank with the threads is hard. Not a problem if you have a union.
8.33 lbs./gal. x 60 min./hr. x 20°ΔT = 10,000 BTU's/hour
Two btu per sq ft for degree difference for a slab
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@Alan (California Radiant) Forbes
Have a look at what McMaster sells.
Scroll down a bit to the fittings.That may not be what your guy used, but it could probably make your work look just as good.
Single pipe 392sqft system with an EG-40 rated for 325sqft and it's silent and balanced at all times.
1 -
I see that. What a thoroughly nice selection. But I questioned him once about his materials and methods and he said it was all freehand and he’s not the kind of guy to embellish or stretch the truth. If you met him once, you would agree.
8.33 lbs./gal. x 60 min./hr. x 20°ΔT = 10,000 BTU's/hour
Two btu per sq ft for degree difference for a slab0 -
Having a union makes it easier. Having a plastic mitre box and a sharp 10" serrated knife is required for cutting neoprene insulation.
1 -
This one is not serrated, but it goes through insulation "like butter".
https://www.amazon.com/gp/product/B0009MZI4W/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1
8.33 lbs./gal. x 60 min./hr. x 20°ΔT = 10,000 BTU's/hour
Two btu per sq ft for degree difference for a slab1 -
The difference between 'just so' and extraordinary is ART. The Japanese make an art out of pouring tea. I always look to symmetry (ART) in the work I do. I get great satisfaction from that. Funny, when I start a project, I have no idea where to start or how to do it. Some how, it always turns out beautiful (which is symmetry) and functional. It's like ZEN, it proceeds out of doing.
3 -
Incorrect insulation. Armoflex is for chilled water. Should befiber glass with asj
2 -
I think it's copper!
Edward Young Retired
After you make that expensive repair and you still have the same problem, What will you check next?
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Really? So foam insulation will not insulate on hot water pipes, only on cold water pipes. This is interesting, I never knew that. 25 years ago I installed a combination chiller/boiler system that uses the same pipes for the cold water in the summer and the hot water in the winter. I never told him that they needed to change the insulation each season. Besides, I put all kinds of muck on that insulation to make sure the vapor barrier was sound so condensation wouldn't form under the insulation.
That would be a really labor intensive changeover each season, Glad I'm retired and don't need to deal with that anymore.
Edward Young Retired
After you make that expensive repair and you still have the same problem, What will you check next?
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McMaster says it's good to 300f.
Single pipe 392sqft system with an EG-40 rated for 325sqft and it's silent and balanced at all times.
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epdm close cell is the good stuff rated for higher temps. The insul in OP photos is open cell I’m pretty sure and may only be rated to 160 but not totally sure on that. I’ve seen open cell melted to copper on 180 systems.
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I think you're 100% right.
The texture and color don't look like what I think of when someone says Armaflex.
Single pipe 392sqft system with an EG-40 rated for 325sqft and it's silent and balanced at all times.
0 -
Yes, it's not Armaflex. It's polyolefin.
8.33 lbs./gal. x 60 min./hr. x 20°ΔT = 10,000 BTU's/hour
Two btu per sq ft for degree difference for a slab0
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