Best Of
Re: Heating Pros: Please Help Us With This Quick Survey About Boilers
what is the survey for and who is asking for it ?
mikedo
Re: Periodic fail
I agree with all of the above, and it's all needed work, but… I have run into that problem and even after all that found that the primary control may be the problem. I do like the Carlin 70200S…
Re: New Backflow Preventer Failed
P2902.5.1 Connections to Boilers
Where chemicals will not be introduced into a boiler, the potable water supply to the boiler shall be protected from the boiler by a backflow preventer with an intermediate atmospheric vent complying with ASSE 1012 or CSA B64.3. Where chemicals will be introduced into a boiler, the potable water supply to the boiler shall be protected from the boiler by an air gap or a reduced pressure principle backflow prevention assembly complying with ASSE 1013, CSA B64.4 or AWWA C511.
mattmia2
Re: Help with fuel oil boiler!
This is exactly why we use combustion test equipment on a service call.
Grallert
Re: Seeking Engineer for Off-Grid Religious Facility Heating in the Mountain States
Not a heating pro, just a homeowner/mechanical engineer.
I will ask a question for the pros to weigh in on. Would gravity hot water not be the simplest option from a control point of view? With a steam system, you have no heat unless you get the water temp up to 212, and then you have the usual problems with venting, etc.
Seems to me a gravity hot water system would be more forgiving, since you can get heat from water at almost any temperature, so your supply water temp can vary widely and you don't have to be as fussy. Also, with the large water volume that you would have for such a large building, you have a large thermal storage mass in that water that can release its heat gradually over many hours, unlike steam that has essentially no thermal mass except the radiators and pipes.
And you have no vents to worry about, no balancing, no water hammer, no searching for the improperly pitched pipe that's causing trouble.
Room temp control can be as simple as TRV's on the radiators, and then it doesn't matter what the water supply temp is. You just fire up the wood boiler in the morning, get it hot enough for a reasonable supply water temp, and let it gravity circulate with the radiator TRV's doing the local temperature control. Then add wood to the boiler periodically throughout the day.
Am I missing something?
jesmed1
Re: Steam not reaching 6th floor
Well let's see. I suggest @JohnNY / He's in New York. Or maybe @clammy or @EzzyT /
In the meantime…
First, you don't need 3 psig. 2 psig is ample — and probably unneeded.
Second, you mention that the autofeeder feeds after it reaches the 3 psig. Where does that water go? If you are adding water on pretty much every cycle and the boiler isn't flooding, you have a leak somewhere — possibly a pretty big one.
Third, as noted by others above, pressure will not — cannot — cause water to back out of a properly piped boiler in any great quantity.
And last — a cycle of only a few minutes isn't going to heat all the radiation, even if the boiler is sized properly. Just not going to happen. Something else is amiss. Probably more than one thing.
You need boots on the ground who know what they are doing.
Re: EDR Calculation Help - In Need of a New Boiler
8-way is great, but not until the water is clean. Then it will help it stay clean.
Re: strong smell after boiler install
Could it be some oil etc in the water line causing the oil smell then coming out main vents or radiator vents depending on pipe system. Maybe this would explain why on all floors you are smelling it.
Re: Not Really a Radiator Vent. What am I?
Probably could get away withit with the huge chunks of iron they called boilers in those days.
Gonna have to take a hard pass on asbestos filtration though.
