Best Of
Re: Compression fitting going from lead to anything modern (e.g. steel/brass)
Hi
Make sure to have valves before the sillcocks and I recommend adding a drain cock as well and be sure to open them before winter and make sure no water is left in the “frost-free" sillcocks or they'll freeze
An buy the Prier brand
https://www.supplyhouse.com/Prier

Re: Co-op in Brooklyn looking for steam consultant, 120 unit, single pipe, 1950s building
Can't go wrong with any of these.
Re: Co-op in Brooklyn looking for steam consultant, 120 unit, single pipe, 1950s building
Also @EzzyT @clammy possibly @Mad Dog_2 (not sure if that is something he does) and a couple others.

Re: Co-op in Brooklyn looking for steam consultant, 120 unit, single pipe, 1950s building
Contact @JohnNY
Re: When to NOT use sharkbite? A question
I was not a believer of shark bites when they first started on the market. I am probably the biggest none believer / cynic when it comes to new stuff being introduced in the trade. Believe-you-me, I have, and have seen many get burned by some new shlock that is "the next best thing". I also have not seen one blow off, blow up disintegrate , evaporate, etc… I have not witnessed said failures because they were most likely installed properly. So maybe for a DIY'r? It's a way out and a way in to get a job done. I certainly would not do a large job with them or as a contractor use them as a go-to fitting, but as much as I hate to admit it, they have there place.

Re: Compression fitting going from lead to anything modern (e.g. steel/brass)
can you take a few pictures? lead supply piping would be more like 100+ years old. I would re-pack the sillcock unless you're prepared to start replacing until you get to something that isn't lead. the way to connect to it would be to wipe a brass or copper pipe to it and connect that to your fixture but 100 year old lead will be brittle and have a ton of oxide that will make that very difficult.
are you sure it isn't steel or brass or copper tube?
how is the other end of the pipe connected?
you could maybe use a dresser type coupling but the od of lead pipe is usually pretty irregular.

Re: Compression fitting going from lead to anything modern (e.g. steel/brass)
A lead pressure pipe? That's been there for a while. As @mattmia2 said, it will be brittle. If it were mine I'd find out where it started at the other end and abandon the whole length of it. Repipe in PEX and a new sillcock.
Re: Utica Combi Boiler (MAC-150)-Error 133- Causing big bang noise after few trial of combustion
Was everything on the list for that error verified ? If the spark is poor OR not where it needs to be it won't work correctly.
https://uticaboilers.com/wp-content/uploads/2022/02/MAC-Boiler-Manual-REV-A-WEB.pdf
Compression fitting going from lead to anything modern (e.g. steel/brass)
I'm going to have to replace both my sillcocks which are over 60 years old and are leaking from the stems when I open them. I could probbaly try to scrape the paint off the compression nuts and tighten them, but this is my opportunity to replace them with frost free ones.
One of them is connected to copper pipe but the other one is connected to a lead pipe (black appearance, non-magnetic, when I scrape it it reveals a gray surface below)
The copper one I will replace with a propress ball valve and a frost free sillcock which I will attach with propress compression fittings.
What can I do with the lead one? Are there compression fittings that let me go from lead to copper/brass etc? The lead pipe has a 0.63" OD.
Thank you!
Re: Trying To Estimate Heat Pump kWh Usage
You can find your current design temperature here:
It's virtually certain that in 1977 the installer just used rules of thumb to size the equipment. There's basically no penalty for oversizing an oil boiler.