Best Of
Re: Best Material to Use for Drainpipes in Residential Homes.
pro press in certain situations is worth the extra cost of fittings. But not always!
pecmsg
Re: Best Material to Use for Drainpipes in Residential Homes.
Shark Bite for PVC. How lazy can you get?
pecmsg
Re: 100 year old radiator??
Depends on what you mean by "inefficient", @CoachBoilermaker .. Does it put out less heat than it would if it were free standing?. Yes. Does it use more energy from the boiler in relation to the heat output? No. Any more than a smaller radiator is "inefficient" in relation to a large one.
So — no inefficient, just lower output.
Re: Best Material to Use for Drainpipes in Residential Homes.
Copper to CI is going to make the least amount of noise … The OP could be looking at a connection that is 80 years old and even with that age the CI is most likely fine. I lost my old school plumber from Philly w/ covid and my last project was all PVC … it's loud even with some thought about insulation for the PVC. It surprised me that you could hear some of the smaller runs to the main stack.
TAG
Re: Grunfos Domestic Hot Water Recirculation System
I have almost instant hot water at the faucets by a system I installed myself using a dedicated line from each of my 3 bathrooms. I installed the smallest B&G bronze pump (38 watts) that I could find at that time and added a cheap plug in timer so I did not have to have a licensed electrician to do any wiring. It has been working trouble free for about 27 years. Do I worry about a few $ of cost expenses or savings? My answer is simple as you married guys will agree; my wife is very pleased, so that makes me a happy guy.
Re: Material price increases due to govermental tarrifs
It would be non-logical and acting opposed to shareholder value for a domestic manufacturer to not raise their prices in the presence of competitors raising theirs, for whatever reason.
All companies should be setting their prices according to what the market will bear.
Just like a plumber would be a fool to keep his prices at the same level regardless of competition.
Re: Boiler Header Manifold
I have had that issue. They make nice skis when your done. Never tried the water trick.
Only way I ever found was to heat the 4" to relive the stress. Putting the tapping on opposite sides of the pipe would help balance things out but you can't always do that.
Instead of using thread-o-lets they make pipe-o-lets which are much lighter and have less mass and don't require as much weld metal so you get less shrinkage
Re: Draft
This may not be what you are discussing about draft but a lot of the very old gas burners relied strictly on a good draft to provide the needed air for proper combustion. There were no fans or blowers to provide the correct amount of combustion air, just a good draft.
Re: ASME requirements
This is my understanding but I have been out of the loop for a while.
my understanding with expansion tanks is they need an ASME rating if the relief valves on the system are rated over 30psi. 30psi reliefs and under do not require ASME expansion tanks.
As far as indirects go I thought the reason for the 119 gallon tanks was that 120 gallons or more require ASME and under 120 does not.
In both the above situations that is why you see on larger jobs you sometimes see multiple 119 gallon indirects and multiple non ASME expansion tanks.