Best Of
Re: Can’t figure out the banging noise in the radiator
The valves on that radiator suggest to me that this may have been piped as a two pipe air vent radiaator. One pipe generally led to a steam main. The other to another pipe which also had steam in it, but was intended to carry condensate back to the boiller as well. A return, if yu will, but not a dry return as would be found in later systems.
It works. Actually, in many ways like a one pipe system. However, pipe pitch — not so much radiator pitch — is essential to make sure that condensate can, indeed drain.
So that is where I would start looking. How does condensate drain? Are the pipes all pitched to allow it to drain freely?
Also make sure both valves are wide open…
Re: Cleaning a 130-year-old hydronic system before new boiler install - was it worth the 30+ hours?
Rust never sleeps , my friend! If O2 is getting in, and it is, corrosion will continue
If your boiler treatment has an oxygen scavenger ingredient, that will help. But it needs to be boosted from time to time.
Either a combination device, or two separates
Air removal is usually supply out if the boiler
Mag and dirt on the return side.
Can’t go wrong with Caleffi products. We pioneered the various separation devices, especially hydraulic and magnetic
hot_rod
Re: Manual J Heat Loss Calculation
I would also include the EDR calculation with the boiler manufacturer's recommendation for sizing according to the EDR. Just in case you actually need a 4 section boiler to get it to operate properly without being undersized (and the inspector will only approve a 3 section boiler that more closely matches the building load.) Unlikely but power can be intoxicating.
OR
You can always make the manual J come out to the BTU that you need it to, by increasing the infiltration number to 2 or 3 air changes per hour. You won't believe how that increases the load calculation numbers.
Re: Radiator Fitting
It might be easiest to just get another 1 1/2" valve to do the job in the place of the 90 ell.
We assume that this is hot water…..not steam?
JUGHNE
Re: Wiring zone valve in Crown Boiler AWR series
Re: DIY questions tuning up my furnace
You need a combustion analyzer and to know how to use it to change the nozzle as well as how to adjust the burner. It isn't a DIY project.
mattmia2
Re: Manual J Heat Loss Calculation
Don't sweat it. Make good general estimates of al that sort of thing — no need to get carried away. Remember too that this Manual J is for the building code folks — since this is steam, you are going to size the boiler to the radiation anyway, not the building heat loss.
Re: Main vent making loud noises
I would say that is not normal, my Big Mouth is petty quiet last I checked it. Maybe the 'O' ring needs replacing.
109A_5
Re: Main vent making loud noises
I'm gonna guess it's not the bigmouth, but the main dragging itself across a support or hanger somewhere as the main expands, or contracts, find the binding spot and slip in a piece of milk carton plastic to allow for a slipp
neilc
Re: Tekmar 360 Control- Assistance Needed
I usea small stainless hose clamp. Yes insulation over it. A chunk of fiberglass even if you don't have pipe insulation.
The tekmar sensors have a small dish groove in the sensor so they fasten to pipe well.
You can change and adapt if the system doesn't do exactly what you want the first attempt.
Write down the settings as you make them to keep track of what change makes what difference.
I imagine many controls go in with factor default settings, no one comes back to fine tune it to the exact application. So for the homeowner to learn settings and adjustments really maximizes what the control can do for you.
I just bought an EV truck, it may take the rest of my life to figure out all the settings and options, which they update on a weekly basis!
hot_rod