Best Of
Re: Can you help identify my B&G boiler pump? Possible replacement? Repair parts?
Not a 100- this is that pump's predecessor. My 1940 Bell & Gossett Handbook says it's the model H2, since the pipe connections are 2-inch.
Given the size of that boiler, I'm thinking that circ might be oversized for that system. This can cause the water to short-circuit through the radiators, reducing efficiency. Here's an extreme case I found years ago:
Do you know how many square feet of radiation is on your system?
Also, an old round boiler like that one is inherently inefficient. A combustion test would probably reveal an extremely high stack temperature.
Re: Replacing cast iron radiator with smaller one
A lot of this is lost on me as a non-heating-professional, but the basics are: it is not a super-simple feat to just replace this radiator with something smaller unless the room is way too hot, which it isn't. I've consulted with our cabinet designer and we made a modification to the cabinet design that will allow us to keep the cabinets (and thus radiator) where they are. If we want to switch to radiant floor heat at some point, I will be back for more specifics. and maybe a physics lesson.
amaiale
Re: Any new feelings about Stay Brite 8 soldering vs brazing?
Back in the day a lot of guys used Stay Brite on everything. I wouldn't use it on discharge lines though. And it for the most part held up very well.
I too used to Stay Brite filter driers and expansion valves…things that may need replacement, but I sometimes brazed them as well.
Everyone has their own opinion, I just trust brazing more. My opinion, and you can fill gaps easier.
The following is a list of pros and cons:
JW Harris says Stay Brite joints are stronger than brazing because the tubing is not annealed
No nitrogen purge needed with Stay Brite
Stay Brite may introduce flux
Some say codes require brazing due to the low temp (500deg) melting point of Stay Brite in a fire…phosgene gas an issue for firefighters.
Equipment does not come out of a factory with Stay Brite joints.
Some say Stay Brite will not take high pressures needed for 410A, 454B and R32
Don't shoot any arrows. I am just listing some items. Both have pros and cons.
Re: Unrecognized return vent
Oh, my! Look what I found rummaging through an old drawer in the basement:
It's the key to the—-now verified—-Breckenridge vent regulation screw!!!
Folks, It may be the only one left in the world! Has impeccable provenance! Found with original identifying tag, and in the building where it was used! Last used by the current owner of 55 years! Step right up closer, folks. This item is now available for purchase for the first time in over 110 years! Now accepting bids of above… $1 million.
pacoit
Rinnai R85e, no power to controller, no hot water
Re: Which New Analyzer?
I just traded in my former E-Instruments 1500 that was manufactured by Seitron on a new Seitron Novo…. absolutely the best analyzer i have ever owned! Truly amazing, and I have it with built in printer (so did my 1500) and have never had an issue with the printer, works great. One of the many features is I can quickly build a model of boilers with all the combustion paerameteres, then next time I am on that type of boiler I just have to scroll down and select it, saving me time of looking ut up or trying to find the I&O manual. Yes all analyzers should have annual calibration for YOUR liability. All Seitron's have 4 year O2 sensors that are field replaceable. Seitron's service and training is second to none!! Check out my old one and my new one featured in the picture on their webpage Homepage - Seitron Americas (they are not actually mine, but new ones that look like the models I owned)
Re: Which New Analyzer?
Hi all. Anything "captainco" Jim Davis says you can take it to the bank. He is or was one of NCI's senior instructors, a great educational / training organization. I have taken his Carbon Monoxide safety testing and diagnostics class and it has been invaluable along with their other performance based classes. Sorry if this came across as an advertisement for NCI but they are one of many great educators in and for our industry that keeps us on top of our game. Hi Jim, I have not seen you in a while, I miss your combustion classes! Wishing you well!
Dan_32
Re: REPLACING A PUMP ON AN OLD TRANE UNIT
Just wanted to extend my sincere gratitude to mattmia2 and SteveSan.
Our Tech said 953-844 is cast on it. I'm going to take that information to our Taco distributor to see if we can get a quote on a replacement, and confirmation that it is a CI2506.
I really appreciate the help.
