To get email notification when someone adds to a thread you're following, click on the star in the thread's header and it will turn yellow; click again to turn it off. To edit your profile, click on the gear.
The Wall has a powerful search engine that will go all the way back to 2002. Use "quotation marks" around multiple-word searches. RIGHT-CLICK on the results and choose Open Link In New Window so you'll be able to get back to your results. Happy searching!
In fairness to all, we don't discuss pricing on the Wall. Thanks for your cooperation.
New Hartford Loop and Venting
I'll be up front and admit that this work is mine. I replaced an existing oil boiler with this Slant-Fin Natural Gas Boiler. I've done hot water before, but this was my first steam. I relied heavily on the guys at the plumbing supply store, but I sure wish I had found this site when I first did the installation since you can see what their advice got me. (Although in my own defense, the previous install was much worse.)
So, the system generally works, but now I have some water hammer and radiators that aren't heating very well. The radiators are on the second and third floor, but the same riser, which is understandably the riser at the end of the main.
I have a multi-part plan:
- Re-pipe the near boiler piping with a Hartford loop that more closely matches the installation diagram. You can see the manufacturer's diagram and my own little diagram over the existing installation. Part of my wet return is copper and my plan is to continue the copper and join it to black pipe below the water line in the Hartford loop. The existing wet return was piped for a boiler with the return on the other side which is why I have the jog.
- Vent the main. Right now, there is no main venting. I have about 50' of 2 1/2" pipe with a volume of about 1.7 cf. By jpf321's handy tool, that means that I need 2 Gorton #1's for proper venting. This is a rental on the other side of the country, so I might add another Gorton #1 for redundancy.
- I used galvanized for all new piping because that's what the plumbing supply house guys said to do. I can't afford the time or expense of replacing it all, but I would use black pipe for all new piping that isn't copper. Considering the galvanized, I would also put a clean-out Y on the vent antler to protect them. Is that enough?
- My equalizer goes more than 2" below the water line. I know this makes my loop less effective, but do I really need to shorten it? If I'm shortening the equalizer anyway, should I use a Gifford Loop (like the one below) instead of a straight Hartford?
- Slant-Fin's diagram calls for a cross connection at the boiler return. Considering one leg isn't even used and I couldn't find one the first time, do I need to track one of these down or is a "T" sufficient?
Am I missing anything? Any input or advice that anyone would have would be very much appreciated.